Bosch SHV, SHX, SHU Schematic

DISHWASHER SERVICE TRAINING

MANUAL

S

0

I. Safety Concerns

IA. Safety Symbol Explanation

m = Warning symbol included in Installation Instructions and on this page. It includes serious warnings

such as injury or death, electric shock & dishwasher damage.

IB. Identify Potential Hazards

There are few hazards associated with dishwashers. Two possible hazards are:

m Electrical shock hazard (as with any electrical appliance).

m Sharp edges – only on tank when sump is removed and on inner door when dispenser is removed.

IC. Warning Personal Injury

m Danger of electric shock. Disconnect power before disassembling or working on dishwashers. Make

sure dishwashers are electrically grounded. Use only copper conductors for all wiring or rewiring.

ID. Warning Property Damage

Only warning on property damage comes from improper water connections – overly tightened water connections could cause water to leak from water inlet valves. This only applies to older models with water inlet valves with vertical solenoids (coils). Newer models with water inlet valves with horizontal solenoids (coils) have water connections integrated with mounting brackets to eliminate possibility of damaging valves from overtightening water fittings.

IE. Electrostatic Sensitive Devices

None since all control modules have pc boards mounted in plastic housings – no pc boards are handled in repairing dishwashers.

II. Product Line Related

IIA. CFC Information

There are no CFC’s or any other refrigerant used in dishwashers.

IIB. Emissions Related

There are no emissions related to dishwashers. Occasionally smells come from customer drains into dishwashers if dishwashers weren’t properly connected to drains.

IIC. CO

No carbon monoxide is emitted by dishwashers.

IID. Government Compliance Issues

None.

IIE. Certification Requirements

All dishwashers are designed, tested and certified by UL for use in the U.S. and Canada. In addition, all dishwashers are Energy Star certified as energy savers. Many dishwashers have NSF sanitized wash cycles.

2

III. Product Specific

IIIA. Product Specification Chart

 Rated 120V, 60 Hz, 15A, 1450W (max.). Maximum amp draw when heaters running ~ 11A.

 Water connection 3/8” NPT female.

 Inlet water pressure range 5 - 120 psi (0.3 – 8.27 bars).

 Circulation pump motor rated 120V, 60 Hz, 160W, insulation class A. Motor has an auto-reset thermal

protector and uses a 10µF capacitor.

 Drain pump rated 120V, 60 Hz, 35W, 0.85A.

IIIB. Model Number Listing and Explanation

Model numbers were changed with the dishwashers introduced during the 4thquarter of 2002.

 Current model # listing – see below

 Older model # listing – see below

Current Mode l # Legend

SH V 9 9 A 03

Tall

Di shw a she r

1 2 3 4 5 6 789

S =

Dishwasher

Tub Type

U =

Tal l

H =

Tub

Undercounter, standard

Fully

V =

integrated

Integra I

X =

Integra II

Y =

Semi

I =

Integrated

# Wash

Programs

Automatic

9 =

Six

6 =

Five

5 =

Four

4 =

Three

3 =

Control Sold Through

Mechanical

0 =

Electronic

3 =

Electronic +

6 =

Options

Automatic

9 =

Distribution

A =

Sears

B =

Common

C =

Builder

D =

Other

E =

Dummy

#

H

P

O

L

A

D

C

E

R

Color UC/#

White

2 = 5 =

Stainless

Black

6 =

Biscuit

7 =

N/A,

3 =

Fully Integrated

CSI

Old Model # Legend

SH V 6 8 0 3

Dishwasher Tall Tub Type

12 3 4 5 6 78

S =

Dishwasher

H =

Tub

Tal l

Undercounter,

U =

standard

Fully integrated

V =

&

U88x x

Integra I

U995x = I =

U99xx =

Integra II

Semi Integrated3 &

# W ash Programs Control Level

Integra I (four)

9 =

or II (five)

Six

6 =

Five

5 =

Four

4 =

8 =

Three

Mechanic al

0 =

&

3, 8

9 =

Electronic

0 =

Standard

&

1, 2

Deluxe

= 5 =

Integra II

3

Color UC/ #

White

2 =

N/A, Fully

3 =

Integrated

Almond

4 =

Stainless

5 =

Black

6 =

Biscuit

7 =

3

CSI

III. Product Specific

IIIC. Model Number Location

Located on right edge of inner door. See below.

The serial label is fastened to the right edge of the inner door.

FD8303 00011

Understanding FD Serial #

(used for warranty)

The FD # shows the Fabrication Date

• The first 2 #s represent the year: 83 = 2003 (add 20 to #; e.g. 20 + 83 = 103 → 2003)

• The next 2 #s represent the month: 03 = March

• The next 5 #s represent the unit made that month: 00011 = 11th SHY99A05UC made that month

10 3 03 0081344 00011 5

Please hold all warranty parts for (60) days for possible return for analysis.

• The first 2 #’s represent a factory code: 10 = New Bern dishwasher, 82 = New Bern cooking

•The 3

• The next 2 #’s represent the month: 03 = March

• The next 7 #’s represent the model: 0081344 = SHY99S05UC

• The next 5 #’s represent the unit made that month: 00011 = 11th SHY99A05UC made that

• The last # represents a check digit = 5 in this case (is dependent on all preceding #’s)

rd

# represents the last digit of the year: 3 = 2003

month

This helps the

factory

investigate

product

problems.

Understanding Factory Serial #

4

III. Product Specific

IIID. Tech Sheet Location

Wiring and circuit diagram folded up and located in slot in front of dishwasher bases.

IIIE. Warranty Information

See below.

Bosch Dishwashers Limited Lifetime Warranty Statement of Limited Warranty

The warranties provided by BSH Home Appliances ("Bosch") in this Statement of Warranties apply only to Bosch dishwashers sold to the first using purchaser by Bosch or its authorized dealers, retailers or service centers in the United States or Canada. The Warranties provided herein are not transferable, and take place from date of installation or ten business days after delivery date, whichever comes first.

1 Year Full Limited Warranty

Bosch will repair or replace, free of charge, any component part that proves defective under conditions of normal home use, labor and shipping costs included. Warranty repair service must be performed by an authorized Bosch Service Center. All cosmetic defects must be reported within 30 days of installation.

2 Year Limited Warranty

Bosch will provide replacement parts, free of charge, for any component part that proves defective under conditions of normal home use, shipping costs included, labor charges excluded.

5 Year Limited Warranty On Electronics

Bosch will repair or replace, free of charge, any microprocessor or printed circuit board that proves defective under conditions of normal home use during the second through fifth year from the date of original installation, labor charges excluded.

5 Year Limited Warranty On Racks

Bosch will repair or replace, free of charge, the upper or lower dish rack (excluding rack components) if the rack proves defective under conditions of nor mal home use during the second through fifth year from the date of original installation, labor charges excluded.

Lifetime Limited Warranty Against Stainless Steel Rust-Through

Bosch will replace your dishwasher, free of charge, with the same model or a current model that is equivalent or better in functionality if the inner liner should rust through under conditions of normal home use, labor charges excluded. Bosch will replace the stainless steel door of any dishwasher if the door should rust through under conditions of normal home use, labor charges excluded.

For location of nearest repair depot call 1--

For location of nearest repair depot call 1

800--

800

944--

2904 from 5:00 AM --

944

2904 from 5:00 AM

5:00 PM M--

5:00 PM M

F (Pacific time)

5

IV. Installation Issues

IVA. Location Requirements

See attached installation instructions.

IVB. Electrical Requirements

See attached installation instructions.

IVC. Water/Drain Requirements

See attached installation instructions.

IVD. Shipping/Packaging Removal

See attached installation instructions.

IVE. Installation Related Process

1. Leveling cabinet –

2. Leveling doors – not required for steel doors. For wooden panels added to steel doors,

see installation instructions.

3. Installing handles – See attached installation instructions.

4. Door reversal – not possible or necessary.

5. Quick test procedure

Top Ten Cosmetic/Customer Use/Installation Issues::

Top Ten Cosmetic/Customer Use/Installation Issues

See attached installation instructions.

 Not cleaning sump filters.…Customers often don’t know they exist.  Smelly dishwashers….Often occurs from filters not being cleaned, drain hose high loops

missing or drain gases being present. If all else is OK, then problem can be preservative not purged from tank door gasket.

 Doors leaking or not latching….Usually an installation issue (dishwasher brackets

installed before dishwashers are leveled front to back, tanks & doors out of square, wooden doors not drilled accurately). Can be blockage in condensation tubes or having condensation tubes connected to drain hose air gaps.

 Inner door damage.…From upper rack during improper shipping and handling

(dishwashers clamped on wrong sides or dropped).

 Doors hit toe kicks.…Toe kick installation issue.  Junction boxes.…Comes from wires not being connected correctly during installation.  Dispensers.…Customers using too much detergent, not using rinse-aid & not knowing how to

close the door.

 Drain hoses not installed properly.…Often no air gap or high loop + pinched hoses --

causes poor draining & smelly dishwashers. Most drain pumps are mistakenly replaced for drain hose installation issues.

 Outer doors….Most are dinged during shipment.  Damaged water valves….Primarily from fittings being overtightened. A damaged valve

can allow some water onto kitchen floors.

6

IV. Installation Issues: Installation Instructions

7

IV. Installation Issues: Installation Instructions

8

IV. Installation Issues: Installation Instructions

9

IV. Installation Issues: Installation Instructions

10

IV. Installation Issues: Installation Instructions

11

IV. Installation Issues: Installation Instructions

12

IV. Installation Issues: Installation Instructions

13

IV. Installation Issues: Installation Instructions

14

IV. Installation Issues: Installation Instructions

15

IV. Installation Issues: Installation Instructions

16

IV. Installation Issues: Installation Instructions

17

IV. Installation Issues: Installation Instructions

18

IV. Installation Issues: Installation Instructions

19

IV. Installation Issues: Installation Instructions

20

IV. Installation Issues: Installation Instructions

21

V. Theory of Operation

VA. Description of Operation/Cycle

 Bosch dishwashers use separate circulation and drain pumps to reduce overall size, noise, vibration

and energy consumption. This allows the use of tall tanks, increasing overall space inside dishwashers where full-sized plates can be placed in both upper and lower racks. Circulation pumps are suspended by rubber straps to further reduce noise and vibration.

 Bosch dishwashers use flow-through heaters instead of exposed elements used on most other

dishwashers. Water from spray arms drops to the sump and flows through the circulation pump into the flow-through heater. Flow-through heaters prevent dishware damage from exposed elements and allow water to be continuously filtered and heated. Bosch flow-through heaters heat water by two degrees (ºF) per minute. All heaters are protected by a 185ºF Hi-limit (high temperature cutout) and by a flow switch which prevents heaters from operating when no water is flowing.

 Bosch dishwashers regulate water temperatures using NTC (Negative Temperature Coefficient)

sensors and electronic controls. As water temperatures increase, NTC resistances decrease. Electronic control modules measure these resistance changes and hold wash and rinse cycles to tight preset temperatures. Older Bosch mechanical dishwashers use thermostats to regulate water temperatures.

 Bosch dishwashers use condensation drying instead of exposed heating elements. Tanks and inner

doors are coated with bitumen (asphalt compound) which absorbs and retains heat from the heated wash and rinse water. A condensation tube is connected to a cold zone in the tank which isn’t covered by bitumen (on right side tank wall for UC/12 & later models and at detergent dispenser on older UC/06 – UC/11 models). Since the cold zone doesn’t retain heat and is cooler than the areas coated with bitumen, moisture condenses around it and exits the dishwasher through the condensation tube. For best results, doors should remain closed until dishwashers have completely finished drying.

22

V. Theory of Operation

VA. Description of Operation/Cycle (continued)

 Bosch dishwashers continuously filter all water using a triple filter method. A filter screen above the

sump filters out larger particles. A two-stage microfilter in the sump filters out finer particles. This microfilter can easily be removed by customers for cleaning and should be cleaned regularly.

 All currently sold Bosch dishwashers use aqua sensors to save water and energy – many older

models used them as well. These aqua sensors, located in the sump next to the flow-through heater, measure water cleanliness (using a light beam and sensor) and add a pre-wash and/or pre-rinse cycle only if water is dirty. Aqua sensors can save up to 20% of water and energy usage.

 Bosch dishwashers use a four-level water spray as shown below. Water sprays up from the lower

spray arm, down from the overhead sprayer and both up and down from the upper spray arm.

23

V. Theory of Operation

VA. Description of Operation/Cycle (continued)

 Bosch dishwashers fill with water as shown below.

Normal fill: Water rises to proper level, pushing air in pressure chamber which operates diaphragm.

24

Overfill: Water rises too high & operates float switch, causing drain pump to remove water from sump.

V. Theory of Operation

VB.

Description of Components

 Circulation pump -- Unlike many dishwashers, Bosch dishwashers use separate circulation and

drain pumps to reduce noise, vibration, space and energy usage. The circulation pump circulates water from the sump into the spray arms.

 Drain pump – The drain pump drains water from the dishwasher. Being a separate pump, it is much

smaller and uses much less energy than a single circulation/drain pump used on other dishwashers.

 Impeller – This part of the circulation pump is what drives water throughout the dishwasher. It uses a

precisely manufactured ceramic disk to reduce friction, yet prevent water leaking. This is the part to replace in rarely used dishwashers if pumps don’t turn.

 Flow-through water heater – Unlike most dishwashers, that rely on exposed heating elements in the

bottom of tanks, Bosch dishwashers use flow-through water heaters (that heat ~ 2ºF/minute). This saves space and allows Tall Tubs (see below), where full-sized plates can be placed in both upper and lower racks.

 NTC – Stands for “Negative Temperature Coefficient”. This temperature sensor in the water heater

provides accurate water temperatures. Its called a “NTC” since its resistance goes down as the water temperature goes up.

 Thermostat – Temperature sensor (and switch) used on older mechanical dishwashers. They open

when temperatures are reached.

 Control module – The brain of electronic dishwashers, it receives water temperature values and

controls the entire wash process. It also contains the test program to help diagnose dishwasher issues.

 Display module – A separate electronic module with a digital display used on some models.  Water inlet valve – Water valve which turns on and off to allow water into the dishwasher.  Water inlet system (with fill switch and diaphragm) -- It insures dishwashers fill properly at various

incoming pressures. It uses a air pressure diaphragm and fill (micro) switch to alert the dishwasher control module when the proper amount of water has filled the dishwasher.

 Float switch – This safety feature shuts down the dishwasher and starts the drain pump if the

dishwasher has gotten excessive water in the base or has overfilled. The drain pump empties out the sump and hoses, not the base (I.e. the drain pump isn’t a base bilge pump).

 Condensation drying – This feature saves energy and enables Bosch dishwashers to have Tall Tubs

– the tallest tubs in the industry, allowing full-sized plate to be placed in both upper and lower racks. Bitumen insulation around doors and tanks holds heat inside tanks, which forces water vapor out of tanks before it can condense onto dishes. The area around the condensation tube exit isn’t coated with bitumen, providing a cold zone for water vapor to condense (instead of on dishes).

 Condensation tube – This is part of the genius of condensation drying. It carries moisture out of the

tank while condensation drying is occuring.

 Detergent & rinse-aid dispenser – This dispenses detergent and rinse-aid at just the right times. In

older dishwashers (service indexes UC/06 & UC/11), it attached to the condensation tube (in the door).

 Aqua sensor (Sensotronic) – This sends a beam of light through water in the heater and measures

how clean the water is. Depending on water cleanliness, rinses are omitted, saving time & energy.

 Microfilter and filter screen – Unlike other dishwashers, the water in Bosch dishwashers is

continuously filtered (100% of the time). The filter screen traps large food chunks while the two or three stage microfilter (depending on model) filters out small food particles.

 Softer bearing – Used to describe circulation pump mounting system using rubber straps to further

reduce noise and vibration (on UC/11 & later models). Sumps and heaters were changed as well as circulation pumps. Older models (UC/06, UC/07 & UC/09) had pumps mounted on rubber bushings.

 Tall tubs – This distinctive feature allows full-sized plates (~ 10”) to be placed in upper racks. The

tallest tanks in the industry is made possible by separate pumps, condensation drying and good use of space in the dishwasher base.

25

V. Theory of Operation

Dispensers

During each wash program, the wax motor opens twice -once to dispense detergent and again to dispense rinse-aid. The wax motor opens the same way -- the linkages make the separate compartments open.

NOTE: The white plastic linkage 1st opens the detergent dispenser door, then cocks in place to dispense rinse-aid when the wax motor operates the 2nd time. After the 2nd operation, the linkage resets itself so it will open the dispenser detergent door for the next wash program.

Condensation

tube (for vented

dispenser)

26

V. Theory of Operation

Top Rack Only

Models with the Top Rack Only feature have separate

actuators mounted underneath heater assemblies. The actuator moves a magnetic plunger in the lower rack heater port, diverting water to the top rack.

Heater with top rack actuator

Plunger

Both racks Top rack only

UC/11 heater

UC/06 heater

HINT: Models with water switches and Top Rack Only have the Top Rack Only parts integrated with the water switches. No separate actuators are needed.

Where plunger engages sump

HINT: Do not use softer bearing heater assemblies (UC/11 & later) on older UC/06 models since the sump, circulation pump, base and heater clamps/gaskets have to be replaced as well for the heaters to fit.

HINT: Models with water switches and Top Rack Only have the Top Rack Only parts integrated with the water switches. No separate actuators are needed.

27

V. Theory of Operation

Door Latches

SHU & SHI dishwashers have door latches linked mechanically to door switches. All other dishwashers (SHV, SHX & SHY) use electronic door switches (microswitches activated by door latches).

187184 ball bearing door latch

with microswitch

419827 door latch for SHI/SHU

(for mechanical linking)

419828 door latch with

microswitch

28

V. Theory of Operation

Aqua Sensors

The aqua sensor only affects energy usage, eliminating a pre-wash and/or pre-rinse cycle if water is clean. Most customers won’t notice the difference if an aqua sensor fails.

NOTE: Aqua sensors provide ~ 20% energy savings.

HINT: Dishwashers still operate adequately when aqua sensors fail.

HINT: Customers will only notice aqua sensors failing if they see their dishwashers running slightly longer or their electric and water usage getting slightly higher.

NOTE: If water is clean enough, it will be kept for the wash cycle. If not, the aqua sensor directs the dishwasher to add an additional pre-rinse or prewash cycle.

29

V. Theory of Operation

Water Fill Assemblies

Water fill assemblies insure dishwashers fill properly at various incoming pressures.

Diaphragm

Switch

lever

Float

Newer water fill assembly without gasket

Water fill

switch

Float

switch

NOTE: Older water fill

assemblies required a gasket between the upper and lower housings. Newer ones do not require gaskets and are a drop-in replacement for older ones.

Older water fill assembly with gasket

30

HINT: Floats should be checked and bases should be cleared of water & debris whenever water fill assemblies are worked on.

VI.

Component Access/Replacement

Water Valves (1)

The water valve is accessed from the front of the dishwasher base by removing the toe kick.

To remove water valve:

 Remove two (2) T-20 Torx screws from toe kick and tilt toe

kick out from under dishwasher.

 Remove base insulation (on models with insulation).  Move sump inlet hose away from water valve (without

disconnecting it).

 Disconnect wires from water valve, including ground wire.  Remove two (2) T-20 Torx screws from water valve.  Pull valve out from dishwasher and disconnect water hose

from rear of valve. Remove any water from sump & base.

Removing toe kick

Removing hose clamp

Moving sump hose

31

VI.

Component Access/Replacement

Water Valves (2)

580009

189533

NOTE

: Water valves have been upgraded several times since 1st 1/4 of 1999. All

valves with upgraded solenoids have yellow solenoid stems. All old valves have white solenoid stems.

167081

 The newest valve (part # 189533) has the solenoid mounted horizontally and the

water fitting held in place by the metal mounting bracket. This is the only replacement valve available and it replaces all other valves.

 The previous valve (part # 580009) had the solenoid mounted vertically, a yellow

solenoid stem and a fine brown mesh filter screen. Use # 189533 horizontal valve whenever it needs to be replaced.

 The oldest valve, used March, 1999 and earlier (part # 167081), had the solenoid

mounted vertically, a white solenoid stem and a white mesh filter screen. Use #

189533 horizontal valve whenever it needs to be replaced.

HINTS:

 When reconnecting the water supply to the

water valve, don’t overtighten the fitting. On valves with vertical solenoids, the plastic can crack and cause leaking if excessive force is used.

 Using Teflon tape on water fittings can help

prevent leaking.

 The water valve can be accessed without

removing outer door or base cover. However, removing them will provide easier access.

32

VI.

Component Access/Replacement

Circulation Pumps --

Circulation Pumps

Access (1)

The circulation pump & capacitor are accessed from the right side of the dishwasher by removing the right side panel and blocking the tank.

To remove outer door:

 Remove six T-20 Torx inner door screws below fascia panel -- three

per side (1).

 Carefully pull bottom of outer door out from dishwasher until top

door tabs clear, then pull door down until it releases from

dishwasher (2). Take care to not scratch outer door

.

 Remove two plastic door guards (3). They occasionally fall out

when the outer door is removed.

1

2

HINT: The fascia panel and door don’t need to be removed to access the circulation pump. However, they must be removed to completely remove the tank.

3

33

VI.

Component Access/Replacement

Circulation Pumps --

Circulation Pumps

To remove toe kick::

To remove toe kick

 Remove two T-20 Torx screws

from toe kick (1).

Access (2)

21

 Tilt toe kick out from under

dishwasher (2).

To remove right & left side panels::

To remove right & left side panels

 Remove two T-20 Torx side panel screws through holes in left &

right trim strips (1).

 Carefully slide trim strips up and out of dishwasher (2). If side

panels are removed carefully to avoid damaging trim strips, then trim strips don’t need to be removed.

 Lift side panels up and out from dishwasher (3). Panels can be

removed with trim strips. Although removing the left side panel isn’t necessary for access, it does allow the right side of the tank to be blocked upward.

1 2

3

34

VI.

Component Access/Replacement

Circulation Pumps --

Circulation Pumps

To raise right side of tank for circulation pump access::

To raise right side of tank for circulation pump access

 Remove one T-20 Torx screw from both rear corners holding tank to base

(1) -- removing screw from both sides allows tank to be blocked upward.

 Remove right toe kick bracket by removing T-20 Torx screw (2).

 Remove T-20 Torx screws from front right bottom corner holding tank to

base (3).

 Remove right hinge cover (4a), release right door tension cord from hinge

(4b) & remove ground wire (4c).

 Raise and block up tank as shown with strut onto base (5a), sliding a piece

of wood or other solid material between the tank and base to keep tank

from falling back onto base (5b).

Access (3)

Screw

1 2

4a 4b

3

4c

5b5a

CAUTION: Its not recommended to turn dishwashers upside-down for tank access. When dishwashers are turned upside-down, water can flow into the diaphragm of the water fill assembly and cause water to not fill properly.

35

VI.

Component Access/Replacement

Circulation Pumps --

Circulation Pumps

To remove motor to access impeller or change complete pump::

To remove motor to access impeller or change complete pump

Disassembly

 Disconnect wire harness from motor after carefully noting

connections (1).

 For UC/11 & later models with softer bearing, lift up rubber straps

from both sides of motor (2). For older models, lift motor up from

base.

 To release plastic latch on pump/motor housing, carefully push onto

latch with screwdriver (3).

 To release motor from pump housing, twist motor to the right

(clockwise). Some force may be required. Capacitor should be ~

11:00 position (4). Pull motor out from pump housing.

1 2

4

CAUTION: Don’t grab motor next to capacitor to avoid jamming your hand on the capacitor.

3

Latch

HINT: When replacing complete circulation pumps for

softer bearing models (UC/11 & later), reusing existing front pump housings (& discarding replacement housings) can save time by not having to change hose clamps. If desired, order # 172272 hose clamps & replace entire pumps.

36

VI.

Component Access/Replacement

Circulation Pumps --

Circulation Pumps

To remove & install impeller (using kit # 167085)::

To remove & install impeller (using kit # 167085)

Reassembly

 While holding motor fan so shaft won’t spin (1a), unscrew impeller

counterclockwise (1b).

 Rotate pump housing counterclockwise until tabs clear, then lift

housing from motor (2).

 Remove spring and O-ring from pump housing, then lift spacer up

from motor shaft (3).

 Place replacement spacer onto motor shaft (4). Note larger end

goes onto shaft 1st.

 Install replacement spring & O-ring onto pump housing, then line up

housing-motor tabs to screw pump housing onto motor (5a). Screw replacement impeller onto motor shaft (5b).

 Align motor to pump housing with capacitor @ 11:00 position to

facilitate reassembly.

Motor fan

1a

2

1b

3 4

37

5a

5b

VI.

Component Access/Replacement

Control Modules --

Control Modules

Disassembly (1)

Control modules are easily removed from fascia panels by bending console tabs.

 Remove fascia panel by removing T-20

Torx inner door screws.

 Disconnect wire harnesses from module

after noting connector locations.

 Pry out metal console tabs holding

module to console.

 Carefully pry back plastic tabs, then slide

module from console.

Removing door screws

Removing fascia panel

(SHU 9922 shown)

Viewing control module

Bending back tabs

Console without module

Disconnecting wires

NOTE: Control modules

for non-integrated models look differently and have different tabs, but are removed using the same procedure.

38

Sliding module out

VI.

Component Access/Replacement

Control Modules --

Control Modules

Disassembly (2)

SHY56A/66C, SHU 995x & SHV 68 control modules are different than other models and are removed differently.

 Remove fascia panel by removing six (6)T-20

Torx inner door screws.

 Disconnect wire harnesses from module

after noting connector locations.

 Remove fascia panel from console by

removing four (4) T-20 Torx screws.

 Remove two (2) T-20 Torx screws holding

module to console.

 Carefully pry back locking tabs on each front

corner of module, then remove module from console. Remove button pad from module.

(SHU 995x shown)

These instructions apply to

SHY56A/66C, SHU 995x &

SHV 68 models.

Removing door screws Removing fascia screws Removing module screws

Prying back module tabs

Align tabs when reassembling

Removing button pad --

buttons can come off pad

39

Sliding module out

VI.

Component Access/Replacement

Control Modules --

Control Modules

SHY56A/66C control modules have separate display modules mounted on the front of fascia panels.

These instructions apply to SHY56A & SHY66C models.

SHY56A/66C Control Modules with Displays

To remove/install display module



Remove outer door & fascia panel.

 Confirm the (4) pushbutton carrier display

latches are intact.

 Route display wire harness through (door

latch) console opening, press harness onto pushbutton carrier wire guide & connect terminal.

 Insert display into top latches (on

pushbutton carrier), then push bottom of display up and rotate it into bottom latches.

:

wire guide

1

Removing door & fascia Checking display latches Connecting wire harness

2

latches

3

4

Locking display in place

40

VI.

Component Access/Replacement

Control Modules ––

Control Modules

These instructions apply

to SHV/SHX/SHY99A

models.

Apexx

Control Module Disassembly (1)

Apexx (SHV99A/SHX99B/SHY99A) control

modules are different than other models and are removed differently. Modules are mounted on the

base

(where base wiring connectors were), not

behind fascia panels. This means:

• Dishwashers must be pulled out to change

control modules.

• Dishwashers must be pulled out to measure voltages & resistances -- dishwashers cannot be diagnosed from the front.

HINT: Its not necessary to remove outer doors to access Apexx control modules.

21

To remove toe kick:

 Remove two (2) T-20 Torx screws

from toe kick (1).

 Tilt toe kick out from under

dishwasher (2).

HINT: Apexx control modules cannot be checked or have resistances measured from the front of dishwashers.

NOTE: Modules were moved to the base to make room for the larger full text displays in the fascia panel.

HINT: It may be possible to reach behind modules without blocking up tanks. If not, then follow these instructions to block up tanks.

41

VI.

Component Access/Replacement

Control Modules ––

Control Modules

Apexx

Control Module Disassembly (2)

To remove right & left side panels (where necessary):

 Remove two T-20 Torx side panel screws through holes in left &

right trim strips (1).

 Carefully slide trim strips up and out of dishwasher (2). If side

panels are removed carefully to avoid damaging trim strips, then trim strips don’t need to be removed.

 Lift side panels up and out from dishwasher (3). Panels can be

removed with trim strips. Although removing the left side panel isn’t necessary for access, it does allow the right side of the tank to be blocked upward.

1

2

3

Removing trim strip screws Removing trim strips Removing side panels

HINT: Apexx control modules cannot be checked or have resistances measured from the front of dishwashers.

HINT: It may be possible to reach behind modules without blocking up tanks. If not, then follow these instructions to block up tanks.

42

VI.

Component Access/Replacement

Control Modules ––

Control Modules

To raise right side of tank for Apexx module access (where

necessary):

Remove one T-20 Torx screw from both rear corners holding tank to



base (1) -- removing screw from both sides allows tank to be blocked

upward.

 Remove right toe kick bracket by removing T-20 Torx screw (2).

 Remove T-20 Torx screws from front right bottom corner holding tank to

base (3).

 Remove right hinge cover (4a), release right door tension cord from

hinge (4b) & remove ground wire (4c).

 Raise and block up tank as shown with strut onto base (5a), sliding a

piece of wood or other solid material between the tank and base to keep

tank from falling back onto base (5b).

Apexx

Control Module Disassembly (3)

4b

Screw

21

4c

CAUTION: Its not recommended to turn dishwashers upside-down for tank access. When dishwashers are turned upside-down, water can flow into the diaphragm of the water fill assembly and cause water to not fill properly.

3

5a

4a

5b

43

VI.

Component Access/Replacement

Control Modules ––

Control Modules

Locating module in base Opening module cover

Apexx

Control Module Disassembly (4)

21

P

u

s

h

3

Disconnecting module terminals Pushing back module latch

5

Sliding module out Align module tabs when reassembling

6

4

Note latch

l

a

t

c

h

l

e

f

t

HINT: Apexx control modules cannot be checked or have resistances measured from the front of dishwashers.

44

VI.

Component Access/Replacement

Control Modules ––

Control Modules

Apexx (SHV99A/SHX99B/SHY99A) display modules are mounted on

fascia panels (where control modules are mounted on other models).

These instructions apply to

SHV/SHX/SHY99A models.

front

top

Apexx

Display Module Disassembly

Removing

fascia screws

1

Removing display module NOTE: Control

3

Removing wire harness

2

modules were moved to the base to make room for the larger full text displays in the fascia panel.

45

VI.

Component Access/Replacement

Heater s & NTC’s ––

Heater s & NTC’s

Access (1)

The heater & NTC can be accessed or measured from the right side of the dishwasher, but can only be removed by dropping the entire base (by flipping the dishwasher on its back) since they are wedged underneath the tank.

To remove outer door:

 Remove six (6) T-20 Torx screws from inner door below

fascia panel (three (3) per side).

 Carefully pull bottom of outer door out from dishwasher until

top door tabs clear, then pull door down until it releases from dishwasher. Take care to not scratch outer door

.

 Remove two (2) plastic door guards. They can fall out when

the outer door is removed.

Remove inner door screws Slide out outer door Remove door guards

HINT: Remove all water from the sump and hoses before accessing the heater -when the dishwasher is flipped on its back, water can enter the water fill assembly diaphragm and cause the dishwasher to not fill properly.

46

VI.

Component Access/Replacement

Heaters & NTC’s ––

Heaters & NTC’s

To remove toe kick

Access (2)

:

 Remove two (2) T-20 Torx

screws from toe kick.

 Tilt toe kick out from under

dishwasher.

HINT: The fascia panel and door don’t need to be removed to access the heater & NTC. However, the door must be removed to completely remove the tank.

To remove right & left side panels:

 Remove two (2) T-20 Torx side panel screws from each side

(through holes in trim strip).

 Carefully slide trim strips up and out of dishwasher. If side

panels are removed carefully to avoid damaging trim strips, then trim strips don’t need to be removed.

 Lift side panels up and out from dishwasher. Panels can be

removed with trim strips.

Remove panel screws Slide out trim strips Lift panels up and out

47

VI.

Component Access/Replacement

Heaters & NTC’s ––

Heaters & NTC’s

Access (3)

To separate base from tank (1):

 Carefully lay dishwasher on its back.  Carefully pull door springs out from base.  Remove terminal blocks from base.  Separate water valve from base by

removing two (2) T-20 Torx screws, then move water valve out of the way.

Place on back Pull out door springs from base & disconnect cords

Disconnect door spring cords, then remove terminal blocks from base

HINT: Remove water from sump and hoses before laying dishwasher on its back (to avoid water entering water fill assembly & causing faulty water filling).

Disconnect water valve from base

48

VI.

Component Access/Replacement

Heaters & NTC’s ––

Heaters & NTC’s

Access (4)

To separate base from tank (2):

 Disconnect J-box ground wire,

then pull wires out of J-box.

 Pull out inlet hose from sump.  Carefully pull base away from

tank and sump.

HINT: Its simpler & quicker to remove the two water valve screws than to remove the hose clamp.

Pull wires from J-box Pull out sump inlet hose

Carefully pull base away from tank & sump

HINT: Don’t order duplicate parts when ordering parts below -when these parts are replaced, others are included:

• Heater assy. sensor where applicable).

• NTC

-- includes Hi-Limit.

-- includes NTC, Hi-Limit, flow switch (& aqua

49

VI.

Component Access/Replacement

Heaters & NTC’s ––

Heaters & NTC’s

Removal & Installation (1)

Removing & Installing Heater & NTC:

 Remove two (2) T-20 Torx screws

holding heater assembly to sump.

 Disconnect wires from heater, flow

switch, NTC & Hi-Limit after noting connections.

 Pull clips, then carefully pull heater

assembly from sump & pump. Note heater comes as an assembly (with housing & gasket).

HINT: If needed, use rinse-aid to lubricate gaskets to make it easier to assemble heater to sump and pump.

NOTE: Softer bearing & non-softer bearing heater assemblies, circulation pumps and sumps cannot and matched. Softer bearing heaters don’t fit in older models and older heaters don’t fit in softer bearing models.

be mixed

Pull clips

Heater assembly Remove heater screws Remove heater

NOTE: Softer bearing & non-softer bearing heater assemblies are connected to circulation pumps differently:

• Softer bearing models assembled to heater and have a separate hose clamp (order # 172272).

• Older models not have a hose clamp.

HINT: Heater assemblies contain NTC’s, Hi-Limit’s & flow switches (& aqua

sensors where applicable). If heaters are replaced, these parts are replaced too.

(UC/06) have a separate gasket and do

(UC/11 & above) have gasket

Hose clamp

“Softer

bearing” heater

50

VI.

Component Access/Replacement

Heaters & NTC’s ––

Heaters & NTC’s

Removal & Installation (1)

Removing & Installing NTC:

 Remove heater assembly -- NTC is located on

top of heater assembly.

 Disconnect wires after noting connections

(since NTC & Hi-Limit are included in the same part -- # 165281).

 Remove NTC cover, pull NTC holding tabs

apart and pull NTC out of heater.

Disconnect wires Remove cover & pull tabs Remove NTC

Hi-Limit

NTC

NTC w/ Hi-Limit

NOTE: To remove flow switch, carefully pry housing away from switch (until tabs clear switch), then snap switch out.

HINT: If needed, use rinse-aid to lubricate gaskets to make it easier to assemble heater to sump and pump.

NOTE: Softer bearing & non-softer bearing heater assemblies, circulation pumps and sumps cannot and matched. Softer bearing heaters don’t fit in older models and older heaters don’t fit in softer bearing models.

be mixed

51

VI.

Component Access/Replacement

Drain Pumps ––

Drain Pumps

Removal & Installation

Drain pumps are mounted to sumps in the front of dishwashers -- they’re easily accessible from the front of dishwashers by removing toe kicks.

Removing & installing drain pump:

 Remove toe kick, then pull up

terminal cover and disconnect wires. For easier access, remove base cover 1st.

 To remove pump, push latch (on

circular collar) & rotate pump clockwise (cw). To install new pump, insert @ 2:00 position & rotate counterclockwise (ccw).

 Clean water & debris from base,

then check float operation.

 Connect wires, then install base

cover & toe kick.

HINT: Improper installation issues causing dishwashers to not drain properly -- its usually not a drain pump problem:

 Drain hoses without high loops or

drains without air gaps

 Drain hoses > 10’ long (i.e. > 4’

extension)

 Drain hoses kinked when

dishwashers installed under cabinets

NOTE: Standard 6-vane drain pumps (#

167082) are quieter and smoother than 4-

vane pumps. Drain pumps used in installations (in Washington State) with Johnson Tees must use stronger 4-vane pumps (# 184178). 4-vane pumps will be slightly noisier, which is normal.

DRAIN HOSE INSTALLATION TIPS:

 Must have drain hoses with high

loops or drains with air gaps.

 Drain hoses can be up to 10’ long

– can add up to 4’ to dishwasher hose.

 Secure drain hoses to rear of

dishwashers with non-metal bands.

52

VI.

Component Access/Replacement

Dispensers ––

Dispensers

To remove/install dispensers:

Removal & Installation (1)

 Remove outer door, remove fascia panel & disconnect wire harness

from fascia panel.

 Disconnect wire harness from above dispenser, then remove wires

to wax motor & reed switch.

 Disconnect condensation tube (for older models with condensation

tubes in doors).

 Bend retainer tabs, the push dispenser inward toward tank. Protect

hand with towel as edges are sharp.

 Replace from inside of tank -- position O-ring seal and bend tabs to

secure. When replacing dispensers, lubricate O-rings with rinse-aid & support inner doors to avoid damage if O-rings stick.

Disconnecting wire harness Bending retainer tabs

CAUTION: Inner door edges are sharp! Cover door edges and remove dispenser carefully.

53

VI.

Component Access/Replacement

Dispensers ––

Dispensers

Removal & Installation (2)

For UC/12 and later dishwashers, condensation tubes were moved (from dispensers) to the right side of tanks. This required a change from vented dispensers to unvented dispensers.

Condensation tube

HINT: UC/12 model condensation tubes exit in the base behind the sump. There is no drain connection for these tubes.

HINT: Vented dispensers cannot be used to replace unvented dispensers. If they are, dishes won’t dry properly and there can be water leaking inside dishwasher doors.

HINT: There are a limited number of UC/11 dishwashers with condensation tubes in tanks and with unvented dispensers. Treat them like UC/12 dishwashers.

54

VI.

Component Access/Replacement

Door Latches ––

Door Latches

Removal & Installation (1)

Other than occasional misalignment, the only door latch repairs will be replacing microswitches on fully integrated models (e.g.

SHV, SHX, SHY, DW44, SHU 88/99, SL84/A95A, etc.). SL34A models also use these door latches.

To disassemble door latches for integrated models:

 Remove T-20 Torx fascia panel screws from inner door.  Lower fascia panel from door.  Locate door latch in console.  Bend out console metal tabs to allow latch removal.

Remove panel screws Lower fascia panel Door latch in console

Tabs (inner view) Bend out metal tabs

NOTE: Door latches for UC/14 & up models are different than UC/06 - UC/12 models -- they cannot be interchanged. Must replace strike plate & door latch together.

55

VI.

Component Access/Replacement

Door Latches ––

Door Latches

Removal & Installation (2)

To remove & install door latches for integrated models (continued):

 Remove door latch from console.  Disconnect wire harness, then remove microswitch & cover.  Disconnect wires, then remove microswitch from cover.  Replace microswitch, then reassemble.

Remove door latch Remove microswitch Microswitch

Replace cover (in slots) Insert latch into tabs Bend tabs back

HINT: Make sure metal console tabs are bent back completely during reassembly.

Replace fascia panel Replace screws

56

VI.

Component Access/Replacement

Aqua Sensors

The aqua sensor is located on the rear of the sump. It can be reached through the left side of the dishwasher (after the left side panel is removed). Its not necessary to block up the tank to reach the aqua sensor.

Base

Tank

Sump

HINT: To change out the aqua sensor, pull off the connector and pull out the aqua sensor (toward the rear of the dishwasher).

HINT: The aqua sensor slides into slots in the sump. Make sure the aqua sensor is properly inserted into the slots.

NOTE: The Apexx Sensotronic 2 aqua sensor # 175340 is

similar to standard aqua sensor # 165279, except it has two (red & green) soil sensors. They mount the same way, but are not

interchangeable.

57

VI.

Component Access/Replacement

Water Fill Assemblies

The water fill assembly is easily accessed from the left side by just removing the left side panel.

HINT: Most water fill assembly repairs will involve replacing microswitches. Occasionally tank insulation or other debris can prevent the diaphragm switch lever from operating, allowing overfilling.

58

VII. Component Testing/Test Procedures

Using Test Programs (1)

Using test programs for various models (UC/06 - UC/17)

Models

SHU/SHI430x, SHU431x

SHU33/DLX

SHU43C, SL34A, SHU432x

SHU53/66C/68, SHI66A/68

SHU53A, SHX/SHY56, SL95A

SHU88

SHU990x, SHV43/48

SHU991x (thru UC/11)

SHU991x (UC/12), SHU992x

SHU995x

SHV66A, SHY66A

SHV68

GI976/966, GM276

DW44

To enter test programs, hold down buttons above (2nd & 4th from left), then turn dishwasher on by pushing on/off button. Push buttons above a 2nd time to start test program. Allow program to finish to see fault codes. Turn dishwasher off to exit test program.

Buttons to Enter Test Program

Power Scrub Plus + Regular Wash Power Scrub P l us + Rinse & Hold Regular W ash + Rinse & Hold Scrub Wash + Delicate/Econo Regular Wash + Quick Wash Power Scrub Plus + Quick W ash Power Scrub Plus + Regular Wash Power Scrub Plus + Quick W ash Power Scrub Plus + Delicate/Econo Regular W ash + Deli cat e Was h Scrub Wash + Delicate/Econo Scrub Wash + Regular Wash Intensive + Delicate Heavy Wash + Light Wash

HINT: Dishwasher test programs heat water to 150ºF, so test programs will generally run > 20 minutes for incoming water temperatures ~ 120ºF.

NOTE: Flow through heaters heat water ~ 2ºF / minute.

HINT: Open door to select test program for fully-integrated models, then close door to run program.

59

VII. Component Testing/Test Procedures

Using Test Programs (2)

Using test programs for various models (UC/14 - UC/17)

Models

SHV46C, SL84A, SHX43E/ 46A-B

SHX33A

SHU43E/53E/66E

SHV99, SHX99, SHY99

Buttons to Enter Test Program

Regular Wash + Deli cate/E cono Regular Wash + Rinse & Hold Turn knob (s ee below) + S tart/ St op (2) left buttons (s ee below)

To enter SHV46C, SL84A, SHX33A/43E/ 46A-B test programs, hold down buttons above (2nd & 3rd from left of three test program buttons), then turn dishwasher on by pushing on/off button.

When in test program, 2 Push 2 lit (**(). Push 3 2

nd

button (Regular Wash) to scroll until test program is chosen -- when 3

nd

button (Regular Wash) to skip certain steps. Turn dishwasher off to exit test program.

rd

nd

button light (Regular Wash) will be lit and 3

button to start test program. Allow program to finish to see fault codes. Push

rd

button light will flash.

rd

button light is

To enter SHV/X/Y99 test programs, open door, hold down 2 left buttons & turn dishwasher on by

pushing on/off button. Press “+” button repeatedly until "S-3-" shows on display, then push start button to check faults on last 8 washes. Close door to begin test program. Allow program to finish to see fault codes. Push “-” button to skip test steps. Turn dishwasher off to exit test program. Choose “S-6-” to clear fault codes.

To enter SHU43E/53E/66E test programs, 1

st

rotate knob to 6:00 position (pointing straight

down). Hold down Start/Stop button, then turn dishwasher on by pushing on/off button. Push Start/Stop button to start test program. When test program has finished, Clean light light will

flash and all other lights will be lit.

Test program

Ready

CleanCycle

buttons

Power Scrub Plus

SHV46C, SHX43E/

46A-B, SL84A

SHX33A

Top

Rack

Power Scrub

Reg.

Wash

Reg.

Wash

Del./

Econo

Rinse

& Hold

Rinse

& Hold

Scrub Wash

Regular Wash

Delicate/ Econo

Quick Wash

Rinse & Hold

SHU43E/53E/66E

SHV/X/Y99

–



S --3 --------

Start

 

+

HINT: Dishwasher test programs heat water to 150ºF, so test programs will generally run > 20 minutes for incoming water temperatures ~ 120ºF.

NOTE: Flow through heaters heat water ~ 2ºF / minute.

HINT: Open door to select test program for fully-integrated models, then close door to run program.

Sanitized

Top Rack

Only

SHU66E shown

Rinse Agent

Start Stop

60

VII. Component Testing/Test Procedures

Fault Codes (1)

(continued)

DISHWASHER TEST PROGRAM ERROR CODES (on 2 & 3-digit digital displays):

# 0 – No faults # 1 – Aqua Sensor (Sensotronic) fault # 2 – Heating system fault (heater, Hi-Limit, flow switch, NTC, control heater relay) # 4 – Water filling fault # 8 – NTC (temperature sensor) fault # 16 – Water switch fault

DISHWASHER CUSTOMER USE ERROR CODES (on 2 & 3-digit digital

displays):

# F – Water filling fault (underfill, overfill or water in the base) # 2H – Last wash cycle too long (> 99 minutes). Can be cold inlet water or heating

system fault (heater, Hi-Limit, flow switch, NTC, control module heater relay).

# _h – Delay Start feature (not a fault code)

DISHWASHER TEST PROGRAM ERROR CODES (on lower line of

full text Apexx SH_99 displays):

# S3 – No faults # A – Aqua Sensor (red) fault # B – Aqua Sensor (green) fault # E – Water switch fault (no pulses

detected)

# F – Water filling fault # G – Water switch fault (won’t

stop running)

# H – Heating system fault (heater,

Hi-Limit, flow switch, NTC, control module heater relay)

# K – NTC fault (short-circuited or

open-circuited)

# xx – Test program step count

(testing done when = 00)

: Top line shows wash cycle &

TIP bottom line shows fault code.

Selecting test

program

Checking fault

codes

Test program

steps

Top

Front



S3



S3

S --3 --------

Start

In Cycle

0 -------

STEP

HINT: Apexx heater runs during steps 05 – 08. Press “-” button to skip to test 05 to measure heater amp draw.

00

000

00

000

 



00

HINT: Dishwasher test programs heat water to 150ºF, so test programs will generally run > 20 minutes for incoming water temperatures ~ 120ºF.

HINT: Open door to select test program for fullyintegrated models, then close door to run program.

61

NOTE: Flow through heaters heat water ~ 2ºF / minute.

VII. Component Testing/Test Procedures

Fault Codes (2)

(continued)

DISHWASHER TEST PROGRAM ERROR CODES (on

SHX33A/43E/46A-B, SHV46C, SL84A models):

# **( – Heating system fault (heater, Hi-Limit,

flow switch, control heater relay)

Fault code LED’s

# *(* – NTC (temperature sensor) fault # *(( – Water filling fault # (** –N/A # (*( –N/A # ((* – Aqua Sensor (Sensotronic) fault

SHV46C, SHX43E/

46A-B, SL84A

SHX33A

Top

Rack

Power Scrub

# ((( –N/A

: Fault codes do NOT add up for multiple faults – shows highest fault code

TIP on list above (1st– heating, 2nd–NTC, 3rd– water filling, 4th– aqua sensor)

Reg.

Wash

Reg.

Wash

Del./

Econo

Rinse

& Hold

Rinse

& Hold

DISHWASHER TEST PROGRAM ERROR CODES (on SHU43E/53E/66E models):

Faults

0 - N o fa ults

1 - Heater Element

2 - W ater Filling

3 - NT C

4 - Aquasensor

LED Fa ult Code s

CYCLE CLEAN NS FREADY

READY

CYCLE

HINT: Dishwasher test programs heat water to 150ºF, so test programs will generally run > 20 minutes for incoming water temperatures ~ 120ºF.

CLEAN

NSF

HINT: Open door to select test program for fullyintegrated models, then close door to run program.

LED fla s he s

LED lit

LED o ff

NOTE: Flow through heaters heat water ~ 2ºF / minute.

62

VII. Component Testing/Test Procedures

Using Test Programs to Measure Heater/NTC Resistances

(continued)

HINT: Because the flow switch only closes when water is flowing, the heater resistance can only be measured at the heater terminals (not at the control module).

Use dishwasher test program to turn on heater, then measure dishwasher incoming current. If ~ 1.5A, heater, Hi-Limit, flow switch or circulation pump has failed. Check voltage @ module (or timer) -- if 0V, module (or timer) has failed.

For electronic models, current can also be measured in red heater at control module (~ 9.5A). Since there can be more than one red wire, check wiring diagram to select heater

wire.

63

wire

HINT: The NTC and High Limit are contained in the same part. When either fails, replace entire part # 165281.

NOTE: Open door to run test program for fullyintegrated models.

NOTE: Flow through heaters heat water ~ 2ºF / minute.

VIII. Troubleshooting

Basic Dishwasher Troubleshooting

Probl em Possible Cause Sug gested Action

9

Washability problems (dishwasher won't clean properly)

9

detergent used.

Blocked or clogged upper/ lower

9

spray arms.

Water doesn't circulate properly

9

due to debris in circulation motor impeller.

Filter not locked down securely,

9

allowing debris to enter sump.

Inappropriate dishwasher

Instruct customer to use a powdered

9

dishwasher detergent (e.g. Cascade powder).

Check spray arms – clean or replace as

9

needed.

Twist and remove filter, then remove debris

9

from right side of sump where water enters circulation pump impeller. If debris has jammed impeller, turn off and pull out dishwasher, remove tank, remove circulation motor and unscrew and clean out imp

HINT: If impeller is damaged, replace entire impeller assembly or it won't s eal adequat ely.

Twist and remove filter, then remove debris

9

from sump. Instruct c ustomer to twist and lock filter (cylinder) securely into sump.

HINT: Water level will not affect washability as water fill is measured by pressure, not time – water level cannot be adjusted.

Suds or foam

9

re m a i ns i n d i sh w a sh e r.

CAUTION: Use caution whenremoving debris from sump to avoid being cut by sharp debrissuch as aluminum can tab s or broken glass.

Drain hose behind dishwasher

9

doesn't have an adequate loop.

Partially clogged air gap, allowing

9

wastewater from prior washes to circulate in dishwasher.

Water doesn't drain properly

9

Soap doesn't enter dishwasher

9

due to dispenser actuator (A2) failure.

HINT: Must pull out dishwasher and remove left side panel to access float switch.

Too much detergent us ed.

9

Improper detergent used (other

9

than powdered dishwasher detergent).

HINT

: Due to high temp erature rinse (161 b reaking down food deb ris an d triple filtering system trapping food debris, filters shouldn't normally clog up. Prob lem often caused by filter not being securely locked do wn. Instruct customer to twist and l

Loop drain hose behind the dishwasher

9

o

(with the top of the loop) at least 20" above the floor.

Unclog sink air gap.

9

NOTE: Cleaning sink air gaps is not covered under warranty.

See

9

Water doesn't drain properly

on

page 65.

Turn off dishwasher and test actuator –

9

replace if faulty.

HINT

: One "wax" m otor operates both the detergent and rinse aid dispensers through a mechanical linkage. The system always resets when door closes. Check linkage b y moving it manual ly. Check "wax" motor b y running a continuity check on its terminals.

Instruct customer to use less.

9

Instruct customer to use a powdered

9

dishwasher detergent (e.g. Cascade powder).

9

properly.

Dishwasher doesn't drain

64

See

9

page 65.

Water doesn't drain properly

on

VIII. Troubleshooting

)

VIII. Troubleshooting

(continued)

Probl em Possible Cause Sug gest e d Ac t ion

Dishes won't dry

9

properly.

Di shw a she r h a s

9

an odor.

Di shw a she r w o n' t

9

run or indicator lights won't come on.

Rinse aid not used.

9

Standing water in dis hwasher

9

sump.

HINT: Water level in sump should be at or below dr ain moto r c over.

Standing water in dis hwasher

9

base.

Minerals in customer water

9

supply.

Food debris in dishwasher filters.

9

Dishwasher not turned on.

9

No power to dis hwasher.

9

Instruct customer on using rinse aid –

9

dishes won't dry without it.

Unclog air gap. Make sure top of drain

9

hose loop (behind dishwasher) is at least 20" above floor (add a loop in hose if there isn't one).

Turn off dishwasher, drain water manually

9

from dishwasher base and correct source of water leakage.

Recommend customer to get water tested

9

and use an appropriate water softener.

Clean dishwasher filters.

9

Turn on/off switch on.

9

Check customer circuit breaker, fuse box

9

or power connections.

Water doesn't

9

drain properly.

CAUTION: Use caution when removing deb ris from sump to avoid b ei ng cut by sharp debris such as aluminum can tabs or broken glass.

Door ajar or on/off switch failed.

9

Door latch has broken.

9

Indicator light failed.

9

Kink in drain hose.

9

Dishwasher filter(s ) or sump

9

clogged.

Drain motor impeller clogged.

9

Kitchen sink or sink air gap

9

clogged.

Drain motor (m3) failed.

9

Timer (SHU 30/40 models )or

9

module (all othe r m odel s ) failed.

Improper drain connection height

9

(< 20" or 508mm above floor).

Turn off dishwasher and check door or

9

on/off switch -- adjus t or replace them.

Turn off dishwasher and replace door latch

9

– instruct c ustomer to not pull on door without pulling latch.

Run test program to see if light failed. If

9

so, turn off dis hwas her and replace indicator light.

Straighten or replace drain hos e.

9

Clean dishwasher filters or sump.

9

Turn off dishwasher, remove drain motor

9

cover (in sump) and clean impeller. If necessary, remove drain motor to clean impeller.

Unclog sink or sink air gap.

9

NOTE: Cleaning sink air gaps or sink s are not covered under warranty.

Turn off dishwasher and measure

9

resistance at motor terminals (≈16.5

Ω

Replace faulty motor.

Check voltage at and wiring to timer or

9

module. Turn off dishwasher and replace faulty

timerormodule(for SHU/I 43/53 models,

install existing module jumper onto new module).

Install drain height and sink air gap

9

according to local codes.

NOTE: For minor problems from improper usage or lack of maintenance, please refer

customer to the Self-Help chart in their Use and Care Manual.

65

VIII. Troubleshooting

(continued)

Probl em Possible Cause Sug gested Act ion

Di sh w a sh e r w on 't

9

stop filling or won't stop draining.

Water fills too

9

sl ow l y.

Water won't fill.

9

NOTE: An "F" fault code in the display shows there's a filling problem (

not filling, over-filling, underfilling or w ater in the base

). The fault code

can't

b e reset m anually – it will reset itself 15 minutes after the dishwasher has b een turned on (aft

Dete rge nt or rinse

9

aid won't dispense properly.

Refill rinse aid

9

light won't come on

Water in dis hwasher base from

9

leaky or loose hose.

Dishwasher isn't level, causing

9

float switch (e6) to operate.

Float switch or diaphragm (e6)

9

failed.

Debris in dishwasher base

9

activated float switch (e6).

Low cus tomer water supply

9

pressure.

Inadequate customer water

9

supply piping.

Scale in customer supply piping

9

or dishwasher piping/parts from hard water.

Customer water supply turned off

9

or disconnected.

Water valve (s2 ) failed.

9

Water level switch (f1) failed.

9

Timer (SHU 30/40 models )or

9

module (all othe r m odel s ) failed.

Water in dishwasher base

9

operated float s witch (e6).

Dispenser actuator (A2) failed.

9

Detergent dispenser door is

9

jammed.

Rinse aid level switch failed (reed

9

switch e3 on standard dispensers or

built-in actuator on top-load dispensers).

Turn off dishwasher, drain water manually

9

from dishwasher base and reinstall or replace hose.

Level dishwasher using front and rear

9

leveling legs (see customer dishwasher installation instructions).

Turn off dishwasher and replac e float

9

switch or diaphragm.

Turn off dishwasher and remove debris

9

from dishwasher base

Adjust customer water supply pressure (to

9

5-20 psi or 0.3-8.27 bars).

Install appropriate piping to dishwasher

9

according to local codes.

Clean or replace clogged piping/parts and

9

have cus tomer get water tested and use appropriate water softener.

Reconnect and turn on customer water

9

supply.

Check resistance @ water valve terminals

9

(≈1000Ω). Turn off dishwasher and replace faulty valve.

Turn off dishwasher and replac e faulty level

9

switch.

Check voltage at and wiring to timer or

9

module. Turn off dishwasher and replace faulty

timerormodule(for SHU/I 43/53 models,

install existing module jumper onto new module).

Turn off dishwasher, drain water manually

9

from dishwasher base, find source of leaking water and fix water leak.

Turn off dishwasher and replace actuator.

9

Free jammed detergent dispenser door.

9

Turn off dishwasher and replac e reed

9

switch (standard dispensers) or top-load dispenser.

NOTE: For minor problems from improper usage or lack of maintenance, please refer

customer to the Self-Help chart in their Use and Care Manual.

66

VIII. Troubleshooting

(continued)

Probl em Possible Cause Sug gest e d Ac t ion

Water doesn't

9

circulate.

Water doesn’t

9

heat up properly.

Circulation motor (m2) failed.

9

Timer (S HU 30/40 m odel s ) or

9

module (all othe r m odel s ) failed.

Hi-Limit (f5) tripped and failed to

9

reset .

Turn off dishwasher and replac e motor.

9

Check voltage at and wiring to timer or

9

module. Turn off dishwasher and replace faulty

timer or module (for SHU/I 43/53 models,

ins t al l exis ting m odule j um per ont o new module).

Run test program & measure current to

9

dishwasher. If current ≈ 11A, Hi-Limit is OK. If not (and for all other models ), turn off dishwasher and measure resistance @ Hi-Limit terminals (≈ .3 Ω). Replace faulty Hi-Limit.

Di sh w a sh e r c y c l e

9

runs too long, yet di shw a she r w a she s, rinses and shuts off OK.

Water leaks from

9

front of dishwasher.

NTC (temperature sens or) failed.

9

Heater (r1 ) failed.

9

Water flow switch (e5) failed.

9

Timer (S HU 30/40 m odel s ) or

9

module (all othe r m odel s ) failed.

Customer hot water supply isn't

9

hot enough (< 140

Blocked or clogged upper or

9

o

F/ 60 oC).

lower spray arms.

Excessive foaming.

9

Turn off dishwasher and check resistance

9

of NTC (≈ 55 kΩ @ 72

Run test program & measure current to

9

o

F). Replace faulty NTC.

dishwasher. If current ≈ 11A, heater is OK. If not (and for all other models ), turn off dishwasher and measure heater resistance (

≈

11 Ω). Replace faulty heater.

Run test program & measure current to

9

dishwasher. If current ≈ 11A, flow switch is OK. If not, remove flow switch microswitch, close its contacts & measure its resistance (

≈

.4 Ω). Replace faulty flow switch.

Check voltage at and wiring to timer or

9

module. Turn off dishwasher and replace faulty

timer or module (for SHU/I 43/53 models,

ins t al l exis ting m odule j um per ont o new module).

Adjust hot water supply according to local

9

codes.

Check spray arms – clean or replace as

9

needed.

See

9

dishwasher

Suds or foam remains in

on page xx.

NOTE: For minor problems from improper usage or lack of maintenance, please refer

customer to the Self-Help chart in their Use and Care Manual.

NOTE:

(ampere) probes. Do all resistance checks with power turned off

Use a multimeter with temperature, voltage/resistance and current

. Identify each wire

color and location at the control module before looking at this chart. NOTE: You will need a T20 Torx screwdriver and may need #1/ #2 flat blade

screwdrivers and a pair of needlenose pliers. Many parts can be snapped out without using tools.

HINT: Symbols for parts (e.g. " f3" or "e6 ") refer to those on circuit/wiring diagrams.

67

VIII. Troubleshooting

NOTE: The following parts can't be serviced from the front of the dishwasher (the dishwasher must be pulled out and the tank removed or tilted/blocked up to replace them):

•· Heater

•· Circulation motor

•· Aqua sensor – can be reached without blocking up tank

•· NTC (temperature probe)/Hi-Limit (185ºF) thermostat

(continued)

NOTE

can run 20 minutes or more (to get temperature up to 150ºF), but tests can be cancelled to shorten testing time. The test program allows draining, filling, circulating and heating to be checked more quickly than running a standard wash cycle.

To use test program for troubleshooting, measure voltages/currents as parts come on. For example, run heating test and measure current coming into dishwasher – if current ≈ 11A, HiLimit, heater and flow switch are OK. If not, check each part to see which one failed. This test saves time since you can't get to these parts without removing the tank and can't run resistance checks from front of dishwasher because flow switch stays open.

NOTE

old module and put it on new module. NOTE: An "F" fault code in the display shows there's a filling problem (not filling,

overfilling, underfilling or water in the base). The fault code can't be reset manually – it will reset itself 15 minutes after the dishwasher has been turned on (after testing how it fills).

: On electronic models, run test program to identify dishwasher problems. The test

: Jumpers aren't included with SHU/I 43/53 replacement modules – take jumper off

68

VIII. Troubleshooting

Dishwasher Parts Issues

 Water valves…. Most damaged valves occur from being cracked by fittings being

overtightened -- some valves are damaged from hard water or debris from customer pipes clogging them so they can’t close securely. A damaged valve can allow some water onto kitchen floors.

 Impellers or circulation pumps….They’re improved and perform well,

but expectations are high for dishwashers in rarely used summer homes.

 Control modules….From heater relay solder joints to broken buttons to “F” or

“2H” fault codes, modules can fail occasionally. However, many good modules have been replaced due to unrelated problems.

 Heaters & NTC’s.…Either one can cause heating problems, but there can be

other parts to check as well....

 Drain pumps.…Check drain hose installation 1st to confirm if it’s the pump or not.

Many good pumps have been replaced because high loops were missing

 Dispensers.…Repairs often due to customer abuse.  Cosmetic damage.…Dinged doors and broken buttons, often during shipment.

.

 Door latches.…Often broken microswitches on integrated models,

understandable seeing how dishwashers are treated. Can be misaligned latches or miswired switches.

 Aqua sensors….Not crucial to operation, but can affect energy & water usage.  Water fill assemblies.…Microswitches can fail. Can be affected when units

have been flipped upside-down, allowing sump water to get into diaphragm.

Circulation Pump --

Circulation Pump

Impeller

Symptom Problem Solution

Impeller won't turn. Impeller is frozen. Replace impeller with impeller kit #

not able to replace impeller immediately, place 8mm nutdriver on 8mm stud on impeller and rotate clockwise twice until impeller is freed up (for temporary fix until impeller can be replaced).

Impeller won't turn. Debris binding

pump.

Open sump & remove sump pump cover, then carefully remove debris from impeller. Check

167085

.If

for broken glass to avoid being cut.

Impeller won't turn. Motor is faulty. Check resistance at motor terminals or at

control panel (~ 7Ωwith water switch or 10 without). Replace motor if faulty.

Ω

WARNING! Unplug dishwasher before starting any repairs.

69

VIII. Troubleshooting

Control Module --

Control Module

Modules Displaying “1”

Occasionally dishwashers will run for hours, not finish washing & show a “1” in the display. This means the module has timed out due to an unidentified

heating problem -- all heating related parts must be checked until the

problem is found.

IMPORTANT: Whenever a “1” shows in the

module display, the module must be reset (after the heating problem has been fixed) by running the dishwasher. The module resets after the 1strun.

If no, module

is working

fine.

START

Has dishwasher

NO YES

stopped washing and is showing a

“1” in the

display?

If yes, control

module has timed

out showing

there’s an

unidentified

problem.

heater

NOTE: The heating

problem must before the module will reset and stop showing a “1” in the display.

Replacing NTC’s also replaces HiLimit’s.

NTC (~ 55kΩ

@72ºF)

be fixed

3-winding circulation pumps can measure ~ 7

Circulation

pump (~ 10Ω)

Ω

or 9.4Ω, depending on motor starter.

Control module

(heater

relay)

Heater (~ 11Ω)

Replacing heaters also replaces NTC’s, flow switches & Hi-Limit’s.

Flow Switch

(~ 0.4Ω)

Have these

parts been

checked??

High Limit

(~ 0.3Ω)

HINT: Check module heater

relays, wire harnesses / connections & heaters before checking NTC’s, flow switches & high limits.

Wire

Harness

70

VIII. Troubleshooting

Heater --

Heater

Can also measure heater

current @ module red

heater wire (~ 9.5A).

If ~ 11A,

heater is

working

fine.

Troubleshooting Flowchart

START

With heater on

(during test

program), measure

dishwasher

incoming current

(black wire).

NOTE: Flow through heaters

heat water ~ 2ºF / minute.

If ~ 1.5A,

heater

circuit has

failed.

Measure

voltage @

control

module.

Measure

resistance

@ heater

terminals.

If ∞, heater

has failed (opened),

replace

heater.

If ~ 0, heater

has failed (shorted),

replace

heater.

If ~120 VAC,

check heater

circuit.

If ~11Ω , check high limit, flow

switch &

circulation pump.

3-winding circulation pumps can measure ~ 7Ω or 9.4Ω, depending on motor starter.

If high limit ~ 0.3 Ω, flow

switch ~ 0.4 Ω & circulation

pump ~ 10 Ω, check wire

harnesses. Replace faulty

harness.

If ~ 0 VAC, control module

(heater relay) has failed.

Replace faulty module.

Measure high

limit, flow switch

& circulation

pump motor

resistance.

If high limit,

flow switch or

circulation

pump = ∞ ,

replace faulty

part.

71

VIII. Troubleshooting

Water Leaking Past Doors

Water seldom leaks out of bottom of dishwasher doors. Usually it’s a customer or installation issue. Occasionally temporary blockages of condensation tubes by air pockets (from standing water in loops) or kinks in tubes causes leaking. Pressure builds in tanks, blowing water past lower door seals. Draining condensation tubes and straightening out kinks solves these occasional problems.

Leveling

dishwashers

before

attaching

undercounter

Draining (&

clearing)

condensation

tubes

(including

debris in

bases)

brackets

Refilling

lower racks

overfilled

with

dishes

START

Water occasionally leaks past bottom of doors, usually at start of cycles.

Have these

issues been

checked??

Straightening

kinks in

condensation

tubes

Curing oversudsing --

customer education (too

much soap/rinse-aid or

very soft water)

Make sure

condensation

tubes aren’t

connected to

drains or air

gaps!

Making sure

bottom end of

condensation

tubes are in

bases

Redrilling

wood doors

to make

dishwasher

doors

square

Replacing damaged door seals (including replacements cut too

short)

Moving flexible cutting

boards to left side of

dishwasher

72

VIII.

Troubleshooting

Circulation Pump --

Circulation Pump

Checking PTC Pump Motor Starter (1)

The (PTC) circulation pump motor starter (# 182318) is used on SHX99B

/ SHV99A / SHY99A (“Apexx”), SL95A & SHX56B / SHV66A / SHY56A- 66C (“ExactWash”) models with water switches. The matching

circulation pump (# 437345) has three slightly smaller & more efficient windings compared to the traditional pump with two larger windings (# 266511 motor / # 239144 pump). The 3rd (start) winding is cut out when the motor gets running. This stronger pump is needed due to the increased water flow resistance from the water switch.

NOTE: Pump # 437345

NOTE

starter with terminal pointing inward.

: Install

includes starter # 182318.

HINT: (PTC) motor starter is located on top of the pump motor and faces inward over the motor.

2

3

The (PTC) motor starter helps start the circulation pump. It’s a ceramic thermal switch which conducts current & heats up, cutting out the 3rd (start) winding at a preset temperature. The two main windings (with the start/run capacitor) have power whenever the pump is running.

41

To install (PTC) motor starters, push female terminals over pump motor terminals 2 & 4. The terminals are different sizes to match the smaller motor terminal 4.

 Check the motor starter if the pump motor won’t start (starter stuck open) or

runs hot (starter stuck closed).

73

VIII.

Troubleshooting

Circulation Pump --

Circulation Pump

2

3

41

Checking PTC Pump Motor Starter (2)

PTC

TECH TIPS: Resistance

measurements:

 Between terminals 1 - 2 is ~ 7

Ω (one of the main run windings).

 Won’t help between terminals

2 - 4 (start winding, a run winding & the motor starter). The motor starter can’t be

Apexx

model

shown

measured since the windings are always connected. Must disconnect PTC 1st to measure its continuity.

Use terminal 3

located on motor.

2

24

3

NOTE: Apexx (SH_99) models shown. Wire colors will change for other models.

NOTE: Unlike standard twowinding pump motors, these three-winding pump motors have four terminals instead of three.

1

Terminal 2 located

on motor starter.

NOTE: Motor terminals 2 - 3 and

2

3

24

Use terminal 1

located on motor

NOTE

: Encountering original equipment pumps & motor starters:

L 11/11/03 & later

OVLP) with motor starter # 182318 (4.7 – 4.8Ω).

L 9/16/03 – 11/11/03

120ºC OVLP) with motor starter # 423023 (15Ω).

L 6/6/02 – 9/16/03

OVLP) with motor starter # 182318 (4.7 – 4.8Ω).

1

.

: Circulation pump # 437345 (with 135ºC

: Circulation pump # 239129 (with

: Circulation pump # 239129 (with 120ºC

both PTC terminals are tied together. Although factory units are connected to motor terminal 3, it doesn’t matter if motor terminal 3 or PTC terminal 2 is used (both will work). Use motor terminal 3 to be consistent with factory units.

74

VIII.

Troubleshooting

Circulation Pump --

Circulation Pump

Water Switch Pump Nuisance Tripping (1)

There has been some nuisance tripping of motor thermal protectors on three-winding circulation pumps for use with water switches (# 239129). To prevent nuisance tripping, these pumps have been replaced by pumps with upgraded thermal protectors (# 437345).

IMPORTANT: Circulation pump # 437345 includes motor starter #

182318. When replacing any pump, always

well.

replace the motor starter as

TECH NOTES: Motor starter # 423023 (15Ω) has a larger resistance to limit current draw through pump motor start windings. Winding temperatures are reduced, but starting torque is reduced as well (by 10%). To obtain designed (and maximum) start torque and keep UL certification, do not with circulation pump # 437345. Use only

TECH TIPS

a preset temperature, protectors reset and pumps will work again. If thermal protectors fail to reset, replace pumps.

NOTE

• 11/11/03 & later:

• 9/16/03 – 11/11/03:

• 6/6/02 – 9/16/03:

: All circulation pump motors use auto-reset thermal protectors. Once motor windings cool below

: Encountering original equipment pumps & motor starters:

Circulation pump # 437345 (with 135ºC OVLP) with motor starter # 182318 (4.7 –

4.8Ω).

Circulation pump # 239129 (with 120ºC OVLP) with motor starter # 423023 (15Ω).

Circulation pump # 239129 (with 120ºC OVLP) with motor starter # 182318 (4.7 –

4.8Ω).

motor starter # 182318 with circulation pump # 437345.

use motor starter # 423023

75

VIII.

Troubleshooting

Circulation Pump --

Circulation Pump

HINTS: Identifying circulation pumps & motor starters:

•Circulation pump # 437345 stamped on housing.

• Motor starter # 182318 housing.

•Circulation pump # 239129 stamped on housing.

• Motor starter # 423023 housing.

– look for # “036906” stamped on

– look for # “041692” stamped on

Water Switch Pump Nuisance Tripping (2)

– look for # “5600 060022”

– look for # “5600 050139”

Motor starter 182318

Pump # 437345

Motor starter 423023

Pump # 239129

76

VIII.

Troubleshooting

Circulation Pump ––

Circulation Pump

Replacing Impellers (1)

Occasionally, a circulation pump impeller can stick if a dishwasher hasn’t been used for a long time. Impeller ceramic rings and carbon rings had been changed (during January,

2001) to reduce or eliminate impeller sticking (ceramic rings are located around shaft on rear of impeller).

For temporary repairs when impeller replacement isn’t possible, impellers can be loosened by rotating them (through the sump) using an 8mm nut driver (impellers should be replaced shortly thereafter when repairs are possible).

8 mm nutdriver

HINTS:



Sump

Impeller

Access port to impeller through sump

Upgraded impellers fit all pumps regardless of age or type (2 or 3winding).

 Check color of impeller ceramic

rings to those shown below – replace impellers if they have dull white or cream ceramic rings.

 Make sure black spacer is

reinstalled -- failure to reinstall spacer can cause motor to bind.

INSTRUCTIONS FOR LOOSENING IMPELLER:

To loosen stuck impeller, access sump by removing microfilter and sump

screen. Insert an through sump hole to impeller -- place nutdriver onto 8mm stud on impeller and carefully rotate impeller clockwise until it becomes free (at least two full revolutions).

NOTE: Impellers should be replaced

(instead of loosened) whenever possible. Loosening impellers should only be done as a temporary fix.

NOTE: Upg raded spacers and ceramic

rings (January, 2001 and later) provide lower friction and less contact area, preventing impeller sticking when dishwashers haven’t been used f or lon g periods of time.

8mm nutdriver

HINT: Impeller ceramic ring color code:

Bright white -- upgraded ring

Pink -- upgraded ring

Dull yellow/cream -- old ring (impeller

should be replaced) Dull white (off white) -- old ring (impeller

should be replaced)

UPGRADED OLD STYLE

77

VIII.

Troubleshooting

Circulation Pump ––

Circulation Pump

Replacing Impellers (2)

Occasionally, a circulation pump will jam when debris gets caught inside (when the sump filter wasn’t tightened down) or when a dishwasher hasn’t been used for months. Often circulation pumps are replaced when merely

changing the impeller (kit # 167085, item # 24) will solve the problem.

“Softer bearing” circulation pump

supported by rubber straps

Sump

impeller

Sump

access to

impeller

spacer

“Old” style circulation pump

supported by rubber bushings

8mm nutdriver

Impeller

CAUTION: When replacing an

impeller, install the black spacer between the pump motor and the rear pump housing. Failure to do so

may lock up the pump and damage the rear pump housing!

HINT: When

replacing an impeller, instruct the customer to tighten the sump filter properly to avoid future problems.

microfilter

impeller

spacer

sump

78

VIII.

Troubleshooting

Circulation Pump ––

Circulation Pump

Replacing Impellers (3)

Replacement impellers will have a green tint compared to older impellers. The impeller ceramic ring should be pink or bright white.

HINT: To remove or

Carbon ring used 1/01 – 12/02 shown

temporarily break loose an impeller, place a 8mm driver (or similar tool) on 8mm stud in center of impeller. Freed impellers should be replaced as soon as possible.

nut

Note pink ceramic ring around impeller shaft.

Impeller kit # 167085, showing front and rear

sides of impeller and carbon ring (spring).

Carbon ring

(spring)

Black spacer

Carbon ring used 1/01 – 12/02 shown

79

NOTE: Starting January, 2003, carbon rings were upgraded with a smaller contact surface and an improved contact surface treatment. 167085 impeller kits include these upgraded carbon rings.

VIII.

Troubleshooting

Circulation Pump ––

Circulation Pump

Changes

Part description Old part # Models used on

Circulation pump

Pump support bushings 167244

Pump support straps --------

Gasket (pump to heater) 165268

Pipe clamp (pump to heater) --------

Pump rear housing 263314

Pump front housing 263838

Seal (pump to sump) 165269

263835

(motor only)

Service Index UC/06, UC/11 & UC/12 Parts

All models (index #’s

UC/06 & UC/09)

All models (index #’s

UC/06 & UC/09)

--------

All models (index #’s

UC/06 & UC/09)

--------

All models (index #’s

UC/06 & UC/09)

All models (index #’s

UC/06 & UC/09)

All models (index #’s

UC/06 & UC/09)

So fter bearin g

part #

491434

(motor only)

266511

or

--------

171596

--------

172272

267739

266514

171598

(pump)

Models used on

All models (index #’s

UC/07, UC/1 1 & UC/ 12)

--------

All models (index #’s

UC/07, UC/1 1 & UC/ 12)

--------

All models (index #’s

UC/07, UC/1 1 & UC/ 12)

All models (index #’s

UC/07, UC/1 1 & UC/ 12)

All models (index #’s

UC/07, UC/1 1 & UC/ 12)

All models (index #’s

UC/07, UC/1 1 & UC/ 12)

NOTE: Most circulation pump part #’s have changed due to the “softer bearing ” upgrade -

- the circulation pump has been suspended by flexible straps instead of being mounted onto the base (onto rubber bushings) to make the dishwashers quieter. The impeller kit hasn’t changed – its still # 167085.

NOTE: Parts can be changed without notice. Please refer to published CD

parts lists for up to date part #’s.

80

VIII.

Troubleshooting

Circulation Pump ––

Circulation Pump

Changes

Part description Old part # Models used on

491434

Circulation pump

Pump motor starter --------

Heater assembly Various

Sump 263103

Pump support straps 171596

Pipe clamp (pump to heater) 172272

Pump rear housing 267739

Pump front housing 266514

(pump)

266511

or

(motor only)

Service Index UC/14 Water Switch Parts

All models (index #’s

UC/07, UC/11 & UC/12 )

--------

Various

All models (index #’s

UC/07, UC/11 & UC/12 )

All models (index #’s

UC/07, UC/11 & UC/12 )

All models (index #’s

UC/07, UC/11 & UC/12 )

All models (index #’s

UC/07, UC/11 & UC/12 )

All models (index #’s

UC/07, UC/11 & UC/12 )

Wat e r s witch

part #

437345

(pump)

182318

219639 or

431412

482035

171596

172272

267739

266514

Models used on

ExactWash

All

models (index # UC/14)

ExactWash

All

models (index # UC/14)

ExactWash

All

models (index # UC/14)

ExactWash

All

models (index # UC/14)

All models (index #’s UC/07,

UC/11, UC/12 & UC/14)

All models (index #’s UC/07,

UC/11, UC/12 & UC/14)

All models (index #’s UC/07,

UC/11, UC/12 & UC/14)

All models (index #’s UC/07,

UC/11, UC/12 & UC/14)

&

Apexx

NOTE: This affects (ExactWash & Apexx)

models with water switches -- SH_56, SHV/Y66 & SH_99.

NOTE: Parts can be changed without

notice. Please refer to published CD parts lists for up to date part #’s.

NOTE: This does not affect

(Sensotronic) UC/14 models without the same

water switches. They use

parts used on models

from UC/06 through UC/12.

81

VIII.

Troubleshooting

Circulation Pump ––

Circulation Pump

Pump & Motor Part # Changes

The softer bearing (UC/07, UC/11 & UC/12 index) circulation pump and motor

only part #’s for all B, Thermador & G models have been

changed to make parts ordering more consistent throughout the world. All parts in stock have been changed to new part #’s as follows:

# 239144

complete pump

assembly

# 267739

rear pump

housing

# 167235

capacitor

# 266511

motor only

# 266514 front pump housing

# 171598 sump-pump gasket

NOTE

: The circulation pump assembly

part # has been changed from # 266511 to # 239144. Please check all pumps ordered or already in stock to make sure they show part # 239144.

HINT: The preferred repair for replacing

pump impellers is the # 167085 impeller kit. The other solution is using complete pump assembly # 239144. The # 266511 pump motor only should only be used if the motor fails (which rarely happens).

# 167085

impeller kit

• 239144 -- complete circulation pump assembly (with impeller) for

all B, Thermador &

G models with softer

bearing (models with index #’s UC/07, UC/11 & UC/12).

• 266511 -- circulation pump motor

only for all B, Thermador &

G models with softer

bearing (models with index #’s UC/07, UC/11 & UC/12).

NOTE

263835 index UC/06 circulation pump motor only part #’s have not changed and still are used.

: The # 167085 impeller kit and #

82

VIII.

Troubleshooting

Control Module ––

Control Module

HINT: Occasionally, a heater relay

terminal soldered to a # 266746, 263832 or 264461 control module pc board can burn

solder

relay, but replace the control module.

The heater relay is the largest of three relays in the center be one of two colors:

. If so, do not resolder the

Black

or have insufficient

Heater Relays

of the pc board & can

Orange

HINT: Faulty heater relays can cause modules to count down to “1” and stop.

NOTE: Replace all faulty control modules and hold them for (60) days for possible return for analysis. Do not resolder control module pc boards.

For SHU 430x/53 models, reuse existing jumper (#

167782) for replacement module (SHU 53 shown).

Good board -- showing proper soldering on back of pc board.

Burned board -- showing burned terminal on back of pc board.

83

VIII.

Troubleshooting

Control Module ––

Control Module

Broken # 266746, # 263832 or # 264461 Control Module Buttons

Using # 264946 Front Cover to Replace

# 266746, # 263832 or # 264461 control modules are often replaced when buttons break, not for electronic failures. Replacing the # 264946 front cover when buttons break instead of replacing the entire control module will save customers time and money.

NOTE: # 264946 front

cover fits on all three modules -- # 266746, # 263832 & # 264461.

CAUTION: Some pc board

components are sensitive to static electricity and can be damaged when touched. Personnel handling pc boards should be grounded.

Top of front cover

Top tab

266746,

263832 or

264461

264946

Broken control module “buttons” occur when tabs on front cover break. Use plastic front cover when replacing “broken buttons”.

CAUTION: Insert display module board carefully to prevent

breaking spring locking tabs on front cover. When installing

Bottom of front cover

Note cracks in plastic locking tabs.

display module, carefully cover, making sure board is fully seated into tabs. Then, carefully tabs spring back and lock without cracking or breaking. DO NOT FORCE bottom or top of display board into position.

rotate bottom of board into position so spring locking

INSTALLATION: To install a front cover, insert the

hinge tabs into the control module housing -- do NOT force the cover into the housing. To insert the hinge tabs, rotate the front cover (with the tabs contacting the housing hinge) until the cover hinge tabs slide easily into the hinge. When the hinge is in place, close the front cover until all three tabs lock the cover in place.

NOTE: To determine which control module you have, check the model #’s on the following list: 266746

6802/6805/6806 UC/11 - UC/12. 263832 264461 -- SHU 4302/4306/4312/4316 UC 06 - UC/11 - UC/12 and SHI 4302/4306 UC/06 - UC/11 - UC/12.

-- SHU 5302/5304/5305/5306/5312/5314/5315/5316/6802/6 805/6806 UC 11 - UC/12, SHU 5307/5317 UC/12 and SHI

-- SHU 5302/5304/5305/5306/5312/5314/5315/5316/6802/6805/6806 UC 0 6 and SHI 6802/6805/6806 UC/06.

slide top of board into top of front

HINT: Use # 264946 front cover

instead 263832 module with a # 266746 module since modules cost more & have longer lead times than covers. Many # 263832 modules have been replaced merely for broken buttons.

of replacing an older #

84

VIII.

Troubleshooting

Control Module ––

Control Module

99 and SHV 43/48 Dishwashers (1)

Using # 481055 Control Modules in Older SHU

Control module # 265401 used on older SHV 43/48 and SHU 990x/991x UC/06, UC/07 & UC/11 models has been replaced by control module # 481055 used on all newer SHU 99 & SHV 43/48 UC/12 models. Since

module # 481055 has slightly different wash cycles and an end of cycle tone compared to the # 265401 module, the pushbutton pad for the dishwasher must also be changed so the wash cycles will be shown correctly. Please follow these instructions to order the correct pushbutton pad and to turn off the end of cycle tone for older models.

NOTE: When replacing pushbutton pads for older SHV 43/48 & SHU

990x/991x models when the # 265401 control module won’t be replaced

(I.e. the # 265401 control is functional and is still being used), use the following button pads:

 # 170424 4-button pad for SHV 43 & SHU 990x/991x models (instead of

# 182605)

 # 170423 5-button pad for SHV 48 models (instead of # 182600)

NOTE: When replacing control module # 481055 for newer SHV 43/48 &

SHU 991x/992x models, button pads don’t need to be replaced. If the button pads are worn, order # 4-button pad # 182605 (for SHV 43 & SHU 991x models) or 5-button pad # 182600 (for SHV 48 & SHU 992x models).

NOTE: When replacing control module # 265401 for older SHV 43/48 &

SHU 990x/991x models, use module # 481055 along with 182605 (for SHV 43 & SHU 990x/991x models) or 5-button pad # 182600

(for SHV 48 models).

4-button pad #

85

VIII.

Troubleshooting

Control Module ––

Control Module

99 and SHV 43/48 Dishwashers (2)

button pushbutton pad # 182600 used on SHV 48

55--button pushbutton pad # 182600 used on SHV 48

UC/06, UC/07, UC/11 & UC/12 and SHU 992x UC/12

Using # 481055 Control Modules in Older SHU

button pushbutton pad # 182605 used on SHV 43,

44--button pushbutton pad # 182605 used on SHV 43,

SHU 991x UC/06, UC/11 & UC/12 and SHU 990x UC/06

New pushbutton pads:

INSTRUCTIONS FOR TURNING OFF END OF CYCLE TONE:

 Open door, push and hold Delicate/Econo button, then turn

dishwasher on while holding Delicate/Econo button.

 Release Delicate/Econo button. If module beeps, then end of

cycle tone is on. Press Delicate/Econo button to disable tone.

If module doesn’t beep after button is pressed, then tone is disabled.

 Turn off dishwasher to save selection.

86

VIII.

Troubleshooting

Control Module ––

Control Module

99 and SHV 43/48 Dishwashers (3)

Using # 481055 Control Modules in Older SHU

Comparison of old and new pushbutton pads:

SHV 4303 UC/06 & UC/11 models program buttons & indicator lights:

|

Clean

|

Power

Scrub

Plus

|

Scrub Wash

Regular

old

SHV 4303 UC/12 models program buttons & indicator lights:

new

|

Clean

|

Power Scrub

Plus

|

Regular

Wash

Delicate

|

Wash

|

/Econo

|

Rinse

& Hold

|

Rinse

& Hold

SHV 4803 UC/06 & UC/07 models program buttons & indicator lights:

|

Clean

|

Refill

Rinse

Agent

|

Top Rack Only

|

Power Scrub

Plus

|

Scrub

Wash

Regular

Wash

old

SHV 4803 UC/12 models program buttons & indicator lights:

|

Clean

new

|

Refill Rinse Agent

|

Top

Rack

Only

|

Power Scrub

Plus

|

Regular

Wash

Delicate

/Econo

|

Rinse

& Hold

|

Rinse

& Hold

87

VIII.

Troubleshooting

Control Module ––

Control Module

99 and SHV 43/48 Dishwashers (4)

Using # 481055 Control Modules in Older SHU

Comparison of old and new pushbutton pads:

SHU991x UC/06 & UC/11 models program buttons & indicator lights:

|

Clean

old

SHU991x UC/12 models program buttons & indicator lights:

|

Clean

new

|

Power Scrub

Plus

|

Power Scrub

Plus

|

Regular

Wash

|

Regular

Wash

|

Quick

Wash

|

Delicate

/Econo

|

Rinse

& Hold

|

Rinse

& Hold

SHU990x UC/06 Millennium models program buttons & indicator lights:

|

Clean

old

|

Power Scrub

Plus

|

Scrub Wash

|

Regular

Wash

SHU992x UC/12 models program buttons & indicator lights:

|

Clean

|

Refill Rinse Agent

|

Top Rack Only

|

Power Scrub

Plus

|

Regular

Wash

|

Delicate

/Econo

new

|

Rinse

& Hold

|

Rinse

& Hold

88

VIII.

Troubleshooting

Control Module ––

Control Module

Turning Off End of Cycle Tones (1)

Control modules on integrated models (SHV, SHX, SHY) have been replaced when end of cycle tones couldn’t be turned off, not for module failures. Following these instructions for turning off cycle tones, instead of replacing entire control modules, will save customers time and money.

Use these instructions (copied from Use & Care Manuals) when manuals

aren’t available.

MODELS WITHOUT DISPLAYS:

 While pushing & holding right-hand button

marked Cancel Drain (regardless of model), push On/Off button. When light

on button and tone come on, release both buttons.

 Push right-hand button again to scroll

through tone volumes until no tone is heard (or desired volume is reached if

Push right-hand

button marked

“Cancel Drain”

tone is to be kept on).

 To save changes, push On/Off button and

close door. Dishwasher can now be run.

MODELS WITH DISPLAYS

:

0

Delay

Start

HINT: Open door slightly to access buttons.

 While pushing & holding Delay Start

button (regardless of model), push On/Off

button. When display shows a # (0, 1 or

2) and tone comes on (if tone is on), release both buttons. (If no tone comes

on, tone is already off -- push On/Off

button to exit change mode.)

 Push Delay Start button again to scroll

through tone volumes until no tone is heard (or desired volume is reached if tone is to be kept on). Volume level on display will show “0” when tone is off.

 To save changes, push On/Off button and

close door. Dishwasher can now be run.

89

VIII.

Troubleshooting

Control Module ––

Control Module

Control modules on Apexx models (SHV99, SHX99, SHY99) have

been replaced when end of cycle tones couldn’t be turned off, not for module failures. Following these instructions for turning off cycle tones, instead of replacing entire control modules, will save

customers time and money. Use these instructions (copied from Use & Care Manuals) when manuals aren’t available.

Turning Off End of Cycle Tones (2)

 Open door slightly to access buttons, then

push On/Off button. Push “Option” button

four (4) times until “End signal” option shows (see above). The dishwasher then starts playing the present tone volume level.

 Push “+” or “-” buttons to change volume of

end of cycle tone: push “+” button to raise volume (6 is max.) & push “-” button to lower volume (0 turns tone off).

 If desired, push the green Main Menu button

once to change other options or twice to start the dishwasher (close the door to begin the wash cycle).

HINT: Open door slightly to access buttons.

90

VIII.

Troubleshooting

Heater ––

Heater

Replacing Older UC/06 NLA Heaters

Heater assemblies # 264463 (for SHU3000/4000 UC/06 models) & # 269255 (for SHU3030 UC/06 models) have been replaced by kits requiring preparing 264463 and # 269255 heater assemblies from # 266662 heater assemblies by replacing thermostats and flow switches.

To create replacement for # 264463 & # 269255 heaters, push latches to remove NTC # 165281, then replace with thermostat # 168575 (SHU3000 / 4000

UC/06) or # 165384 (SHU3030 UC/06).

NOTE: Kit #’s 264463 and 269255

have all parts for conversions.

Must replace 2-terminal # 175711 flow switch with 3- terminal switch # 069796.

Make sure Oring is installed.

# 168575 thermostat for

SHU3000/4000 models

NOTE: 263869 (SHU53/68 models) or 264462 (SHU 33/43/99 models) heater

assemblies aren’t recommended for conversion since they’re needed for popular models with aqua sensors.

To replace flow

# 069796

# 175711

# 165384 thermostat for SHU3030 models

HINT: Do not use softer bearing heater assemblies (UC/11 & later) such as # 480317 on older UC/06 models since the sump, circulation pump, base and heater clamps/gaskets have to be replaced as well for the heaters to fit.

switch, gently pry both sides of housing at top of switch until tabs clear switch, then pull switch out.

91

VIII.

Troubleshooting

Heater ––

Heater

Water Switch (“Flow Control”) (1)

All Apexx (SH_99) and ExactWash (SHX/Y56 & SHV/Y66)

model heater assemblies have motor operated water switches

inside them, with motors attached where Top Rack Only

housings have been traditionally mounted (underneath heater assemblies). They consist of a motor-controlled disk (with 3 holes) which rotates to provide precise water flow control -using both spray arms, upper spray arm only or lower spray arm only.

Water

switch disk

Heater

assy.

Water

switch

motor

Water switch disk

HINT: Models with water switches require stronger circulation pumps (# 239129) with separate motor starters (# 182318). Circulation pumps, heaters & sumps for water switch and non-water switch models

cannot

HINT: Models with water switches and

Top Rack Only have the Top Rack Only

parts integrated with the water switches. No separate actuators are needed.

92

be interchanged.

VIII.

Troubleshooting

Heater ––

Heater

Part descrip t io n Ol d part # Models used on

Circulation pump

Pump motor starter --------

Heater assembly Various

Sump 263103

Pump support straps 171596

Pipe clamp (pump to heater) 172272

Pump rear housing 267739

Pump front housing 266514

Water Switch (“Flow Control”) (2)

491434

(motor only)

266511

or

(pump)

All models (index #’s

UC/07, UC/ 11 & UC/12)

--------

Various

All models (index #’s

UC/07, UC/ 11 & UC/12)

All models (index #’s

UC/07, UC/ 11 & UC/12)

All models (index #’s

UC/07, UC/ 11 & UC/12)

All models (index #’s

UC/07, UC/ 11 & UC/12)

All models (index #’s

UC/07, UC/ 11 & UC/12)

Wat er s witch

part #

239129

(pump)

182318

219639 or

431412

482035

171596

172272

267739

266514

Models used on

All ExactWash & Apexx

models (index # UC/14)

All ExactWash & Apexx

models (index # UC/14)

All ExactWash & Apexx

models (index # UC/14)

All ExactWash & Apexx

models (index # UC/14)

All models (index #’s UC/07,

UC/11, UC/ 1 2 & UC/ 14)

All models (index #’s UC/07,

UC/11, UC/ 1 2 & UC/ 14)

All models (index #’s UC/07,

UC/11, UC/ 1 2 & UC/ 14)

All models (index #’s UC/07,

UC/11, UC/ 1 2 & UC/ 14)

NOTE: This affects (ExactWash & Apexx) models with

water switches -- SH_56,

SHV/Y66 & SH_99.

NOTE: Parts can be changed without notice.

Please refer to published CD parts lists for up to date part #’s.

93

NOTE: This does not affect (Sensotronic) models without the same

water switches. They use

parts used on models from

UC/06 through UC/12.

VIII.

Troubleshooting

Drain Pump ––

Drain Pump

Sump Improvements to aid Draining

Two improvements have been made in sump parts during mid 2003 to improve draining. Drain pump performance can be optimized if these parts are replaced when drain pumps are replaced.

Old cover 165263 shown

Drain pump covers were changed from 165263 to 423419 to provide better water flow and resistance to jamming.

Check (backflow) valves were changed to provide superior leak resistance. The new material is leak proof. Part # is still 165262.

Old valve 165262 shown

94

VIII.

Troubleshooting

Dispenser ––

Dispenser

Replacing Dispenser Doors

Most dispenser problems occur from dispenser doors being damaged or pulled off (due to misuse). Please follow the instructions below when replacing doors.

Dispenser with spring

Attach spring

to post

Door

 Connect spring to

door & dispenser housing posts.

 While keeping

spring attached to posts, carefully slide door onto housing -- making sure door tabs engage dispenser door rails.

 Door levers don’t

need to be preset during installation.

Slide door

into rails

HINT: Make sure door tabs

engage dispenser door rails.

Open

HINT: To close dispenser doors, slide doors closed, then push

white lever until lever locks (showing doors are closed). Levers don’t need to be preset during installation.

Closed

95

VIII.

Troubleshooting

Dispenser ––

Dispenser

Top Load Dispenser (1)

Many high-end models (with digital displays) have top-load dispensers, enabling detergent and rinse-aid to be added while doors are partially open (preferably @ 45º).

Rinse-aid dosage is shown on the digital display and is changed through the dishwasher controls, not through a dispenser dial.

Standard dispenser

Top-load dispenser

NOTE: Top-load and standard dispensers are NOT

HINT: Top-load dispensers are mounted

similarly to standard dispensers.

HINT: Check the Use & Care Manual on changing top-load dispenser rinse-aid dosage using dishwasher controls.

interchangeable.

96

Push onto the blue button to release the detergent cup (once the door has been opened).

VIII.

Troubleshooting

Dispenser ––

Dispenser

Top Load Dispenser (2)

Top-load dispensers measure rinse-aid levels, but not with removable reed switches as with traditional dispensers. The dispensing mechanism also operates differently from traditional dispensers. All top-load dispensers are unvented.

Rinse-aid

reservoir

HINT: Resistances

of actuator and rinseaid sensor cannot be measured.

Detergent

door

Detergent

cup

Rinse-aid

level

sensor

Top-load

dispenser

actuator terminal

97

Mechanism latches at the bottom of the

dispenser

VIII.

Troubleshooting

Dispenser ––

Dispenser

Top Load Dispenser (3)

Unlike with standard dispensers, top-load dispenser rinse-aid dosage is adjusted on the fascia (control) panel. Use these instructions when Use & Care Manuals aren’t available.

SHI66A, SHU66C, SHV66A, SHX56B,

SHY66C

Push right-

hand button

marked

“Cancel

Drain”

Æ While pushing & holding right-hand button

marked Cancel Drain, push On/Off

HINT: On SHV,

SHX & SHY models, open door slightly to access buttons.

button. Display will show a # from 0 – 6.

Æ Push right-hand button again to adjust

rinse-aid dosage – higher # to reduce spotting & a lower # to reduce streaking.

SHV99A, SHX99B,

SHY99A

HINT: On SHV,

SHX & SHY models, open door slightly to access buttons.

Æ Open door slightly to access buttons,

then push On/Off button. Push “Option” button 5 times until “Rinse-aid” option

shows (see above).

Æ Push “+” or “-” buttons to adjust rinse-aid

dosage: push “+” button to get a higher # to reduce spotting & push “-” button to get a lower # to reduce streaking.

Æ If desired, push the green Main Menu

button once to change other options or twice to start the dishwasher (close the door to begin the wash cycle).

98

VIII.

Troubleshooting

Door Latch ––

Door Latch

Misaligned Latches

Occasionally integrated dishwasher door latches can be misaligned, causing doors to not close properly or dishwashers to run with doors open (when latches don’t reset). Follow these steps to realign door latches.

Tabs must be even on each side.

Fascia

frame

(console)

Fascia frame (console)

Make sure console tabs fully

engage

door latch.

Insert latch tabs into frame Bend tabs down into latch

Latch Open Position

Check operation.

419828 door latch with

microswitch

Reset latch to open position

NOTE: Integrated dishwashers include the following models: SHV, SHX, SHY & SHU88/99/995x.

HINT: Make sure latch tabs are seated, all fascia frame (console) tabs are bent completely are aligned

with latches and door latches get reset.

187184 ball bearing door latch

with microswitch

, door strikes

99

Bosch SHV, SHX, SHU Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

I. Safety Concerns

III. Product Specific

III. Product Specific

III. Product Specific

IV. Installation Issues

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

IV. Installation Issues: Installation Instructions

V. Theory of Operation

V. Theory of Operation

V. Theory of Operation

V. Theory of Operation

VII. Component Testing/Test Procedures

VII. Component Testing/Test Procedures

VIII. Troubleshooting

VIII. Troubleshooting

VIII. Troubleshooting

VIII. Troubleshooting

VIII. Troubleshooting