Bosch SHE55P Schematic

1 SAFETY .................................................. 2

1.1 General hazards ...........................................................2

1.2 Electrical shock / fire hazards.....................................2

1.3 Plumbing / scalding hazards.......................................2

2 INSTALLATION ...................................... 3

2.1 Pre-Install checklist .....................................................3

2.2 Alignment .....................................................................3

2.3 Electrical connection ...................................................4

2.4 Water connection.........................................................4

2.5 Drain and condensation hose connections...............5

3 OPERATION ........................................... 6

3.1 Control layout...............................................................6

3.2 Reset (“Cancel – drain”)..............................................7

3.3 Changing basic features (on selected units).............7

3.4 Entering special programs and coding...................... 7

3.5 Dispenser......................................................................9

4 COMPONENTS..................................... 10

4.1 Dishwasher components...........................................10

4.2 Operation .................................................................... 26

4.3 Serial label (warranty information) ........................... 26

5 REPAIR................................................. 28

5.1 Water valves ............................................................... 28

5.2 Circulation pumps......................................................28

5.3 Controls ......................................................................31

5.4 Heaters........................................................................32

5.5 2-piece drain hose connection .................................34

5.6 Drain pump removal and installation .......................34

5.7 Door latch removal and installation .........................34

6 FAULT DIAGNOSTICS......................... 36

6.1 Customer service test program ................................36

6.2 Troubleshooting......................................................... 38

7 TECHNICAL SPECIFICATIONS .......... 42

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1 SAFETY

1.1 General hazards

Don’t use the dishwasher until it is completely installed. When opening the door on an uninstalled dishwasher, carefully open the door while supporting the rear of the unit. Failure to follow this warning can cause the dishwasher to tip over and result in serious injury.

In some conditions, hydrogen gas can form in a hot water system that has not been used for weeks. Hydrogen gas is explosive. Before filling a dishwasher from a system that has been off for weeks, run the water from a nearby faucet in a well ventilated area until there is no sound or evidence of gas.

Temperatures required for soldering and sweating will damage the dishwasher’s base and water inlet valve. If plumbing lines are to be soldered or sweated, keep the heat source at least 6 inches (152.4 mm) away from the dishwasher’s base and water inlet valve.

Removing any cover or pulling the dishwasher from the cabinet can expose hot water connections, electrical power and sharp edges or points. Handle with care. Always wear gloves and safety glasses.

1.2 Electrical shock / fire hazards

Don’t allow electrical and water supply lines to touch. Don’t work on an energized circuit. Doing so could result in serious injury or death. Only qualified electricians should perform electrical work. Don’t attempt any work on the dishwasher electric supply circuit until you are certain the circuit is de-energized.

Make sure electrical work is properly installed. There should be no loose electrical connections. Ensure all electrical connections are properly made.

The customer has the responsibility of ensuring that the dishwasher electrical installation is in compliance with all national and local electrical codes and ordinances. The dishwasher is designed for an electrical supply of 120VAC, 60 Hz, connected to a dishwasher-dedicated, properly grounded electrical circuit with a fuse or breaker rated for 15 amps. Electrical supply conductors shall be a minimum #14 AWG copper only wire rated at 75°C (167°F) or higher.

This appliance must be connected to a grounded metal, permanent wiring system, or an equipment-grounding conductor must be run with the circuit conductors and connected to the equipment-grounding terminal or lead on the appliance. Don’t use extension cords.

1.3 Plumbing / scalding hazards

Don’t perform any work on a charged hot water line. Serious injury could result. Only qualified plumbers should perform plumbing work. Don’t attempt any work on the dishwasher hot water supply plumbing until you are certain the hot water supply is shut off.

Don’t over tighten the 90° elbow. Doing so may damage the water inlet valve and cause a water leak. Temperatures required for soldering and sweating will damage the dishwasher’s water inlet valve. If plumbing lines are to be soldered or sweated, keep the heat source at least 6 inches (152.4 mm) away from the dishwasher’s water inlet valve.

c h

Check local plumbing codes for approved plumbing procedures and accessories. All plumbing should be done in accordance with national and local codes.

These instructions depict an installation method for stainless steel braided hose or PEX hot water supply lines. If using copper tubing or other material for water supply, defer to a licensed plumber for proper installation.

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2 INSTALLATION

2.1 Pre-Install checklist

□ Unpack unit. Retain packing material until installation is

successful. Remove packing material from inside the dishwasher.

□ Inspect parts to ensure you have all the necessary materials. □ Flush household hot water supply for at least two minutes. □ Measure the enclosure area. The opening must be at least

34" (87 cm) high and 23-5/8" (60-61 cm) wide.

□ The opening must be close enough to the sink for water line

and drain hose plumbing access.

□ Unit must be installed close enough to the sink so that drain

hose length does not exceed 92" (234 cm) and a high loop is raised at least 20" (51 cm) above the floor.

□ Wooden openings must be sanded smooth and metal

openings must be covered by a protective gasket.

□ Is your water heater set at 120°F (49°C) and does water

pressure measure 15-145 psi (1-10 bar)?

□ If installing in a corner, the dishwasher door must clear

cabinet hardware.

□ Determine mounting method based on dishwasher model and

countertop type, whether top or side mount.

2.2 Alignment

Gently rest the unit on its back, taking care not to crush the drain hose. Remove the toe panel(s). Loosen front feet slightly. Remove junction box cover and retain for later use. Place dishwasher upright, then level side to side and front to back.

If your dishwasher has pre-attached mounting brackets and you have a wooden under-counter, position brackets as far apart as possible by sliding them within slots in direction of arrows. Do not attach them to the countertop yet.

If your dishwasher has pre-attached mounting brackets and the counter top is stone, use pliers to rotate bracket flanges to remove brackets from the top. Grasp brackets with pliers at perforation and bend until the rounded end breaks free. Discard the ends. Slip brackets through side slots. Using pliers, bend bracket flanges so the brackets will not slip through slots. Do not attach them to the countertop yet.

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2.3 Electrical connection

Install according to national and local codes.

Carefully place dishwasher on its back to make electrical connections to the terminal block. Turn power off at the fuse box. Extend power cord approximately 21” from the left side of the opening, and 30” from the back wall, making sure the cord doesn’t contact any moving parts.

Strip outer casing of electrical wire to expose 2.5" - 3" (65 - 76 mm) of inner wires, then strip 1/2" (13 mm) casing from each wire. If plugging the dishwasher into an outlet, contact customer service to order power cord accessory kit (SGZPC001UC). Insert cord through a strain relief (not included) and install to strain relief plate. Attach wires to terminal block (black – L (hot), white – N

(neutral) & green – G (ground). Unscrew terminal screws, but don’t loosen or remove them as they may become damaged. Attach wires snugly, but don’t overtighten.

2.4 Water connection

Install according to national and local codes.

Carefully place dishwasher on its back to make water connections to the water inlet valve. Use a 90º elbow fitting with Teflon tape as needed. Don’t overtighten.

Attach the hot water line to the 90° elbow and route it underneath the unit toward the hot water connection. Make sure the line doesn’t contact any moving parts.

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2.5 Drain and condensation hose connections

Plumbing installations will vary - refer to local codes. The maximum length of the drain hose, including leading to an air gap (if any) is 150" (381 cm). Make sure a high loop is raised at least 20" (51 cm) above the floor.

Drain hose has its own adapter – connect directly to plumbing connection and secure with supplied hose clamp. Don’t connect to condensation hose.

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3 OPERATION

3.1 Control layout

3.1.1 SHE models

SHE55P

SHE43P15

SHU66C

3.1.2 SHX / SHV models

SHX46A

SHV66A

3.1.3 Features

The Sanitized light comes on after certain wash programs have

finished, showing dishes have been sanitized according to NSF standards. Check the Use & Care manual for your model to confirm which programs qualify as NSF rated.

The Refill Rinse Agent light shows rinse-aid needs to be added.

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3.2 Reset (“Cancel – drain”)

To reset, push Cancel-Drain or Cancel-Reset buttons at the same

time.

3.3 Changing basic features (on selected units)

On some models, features can be changed on the fascia panel.

3.3.1 Extra dry heat

With Extra Dry Heat, the temperature of the rinse water can be

raised and the drying time increased for improved drying.

 Turn the dishwasher off and then push and hold the left

Cancel Reset button while turning the dishwasher on –

release buttons when the display shows “0” or “1”.

 Pushing the left

Cancel Reset button changes the setting –

choose “1” to turn it on and choose “0” to turn it off. Push the on/off button to save the setting.

3.3.2 End of cycle tone

The End of cycle tone volume can also be changed.

 Turn the dishwasher off and then push and hold the right

Cancel Reset button while turning the dishwasher on – release buttons when a tone sounds or the right Cancel Reset

button LED lights up.

 Pushing the right Cancel Reset button changes the setting –

push it until the tone is at the desired volume (or the tone stops if it’s to be turned off). Push the on/off button to save the setting.

3.4 Entering special programs and coding

Controls contain codes for sales demo mode, factory tests, customer service test program, dishwasher configuration and error codes. Consult test programs and error codes for your dishwasher before using the codes listed in this manual.

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While pushing (and holding) any two wash cycle buttons, turn the dishwasher on with the on/off switch. The current coding (e.g. “C1”) will show in the display or LED's until you release the buttons. After releasing the buttons, LED “B” will be lit and LED “C” will flash, confirming you’re in the special programs menu. Push button “B” repeatedly until you’ve selected your desired

program (see P(X) Program codes, “P1” or “P4” -- programs “P0” and “P3” are factory tests that aren’t to be used).

The following typical codes cover most dishwashers. Consult the test program for your model to confirm the codes to use.

3.4.1 Typical P(X) Program codes

P0 = Functional test - used for assembly (do not use) P1 = Customer service test program (see E(X) error codes) P3 = Endurance / Life test (do not use) P4 = Control coding (see C(X) control codes)

3.4.2 Typical E(X) Error codes

E0 = No errors E1 = Heating error E2 = NTC error E3 = Filling error E4 = Water switch cannot be positioned E5 = Safety float water level reached or motor speed error (error

code dependent on model – check test program)

E6 = Aqua sensor error

3.4.3 Typical C(X) Control codes

C9 = Sales demo mode

Codes C1 through C9 are possible, depending on the model.

HINT: Customers pushing and holding Cancel-Drain or Cancel-

Reset buttons while turning dishwashers on can see strange

displays. Whenever you get call about a “strange” display, check if the customer put the dishwasher into the test program or some other program.

3.4.4 Sales demo (showroom) program

3.4.4.1 Entering sales demo program

Enter the special program mode – see section 3.5. Before releasing the two buttons held while you turned the dishwasher on, note the coding on the digital display (e.g. “C1”, “C2”, etc) -the dishwasher must be returned to this code for resale.

Push button “B” repeatedly until the display shows sales demo program mode “P4”. Push button “C” to confirm it.

Push button “B” repeatedly until the display shows sales demo code “C9”. Push button “C” to confirm it.

Turn power off and then back on. The dishwasher is now in demo mode -- all button lights will light up.

3.4.4.2 Preparing a dishwasher for showroom use

1. Turn off the power to the dishwasher or disconnect the dishwasher from the electrical power.

m WARNING: Danger of electrical shock!

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2. Remove the toe kick and locate the drain pump terminal shown below. Disconnect the terminal from the drain pump by squeezing and pulling it out. Cover the terminal with electrical tape to prevent electrical shock.

3. Disconnect both ends of the short heater red wire – see section 5.2.3 to remove right side panel for access. Tape the wire with electrical tape to the plastic base so it can be reconnected for resale.

4. Do NOT connect dishwasher to a water line, but slowly pour about 4.5 liters of distilled water into the tank. The water level should be near the bottom of the fine filter screen in the sump.

5. Add a small amount of rinse aid and a 1/2 capful of antibacterial agent (bacteriastat) onto the inner door. Do NOT add bleach.

6. Reconnect the dishwasher and turn it on by pushing the on/off button. Close the door and run dishwasher for one minute. If necessary, add more water until level reaches the fine filter screen.

3.4.4.3 Preparing a showroom dishwasher for resale

To return the dishwasher back to it’s original condition for resale, enter the special program mode – see section 3.4. Push button “B” repeatedly until the display shows sales demo program mode “P4”. Push button “C” to confirm it.

Push button “B” repeatedly until the display shows the original dishwasher code (e.g. “C1”, “C2”, etc). Push button “C” to confirm it.

Turn power off and then back on. The dishwasher now has it’s original coding. Reconnect the pump and heater that was previously disconnected.

3.5 Dispenser

3.5.1 Adjusting rinse-aid dosage

The amount of rinse-aid can be adjusted at the dispenser.

Rinse-aid can be added by pouring it onto the arrow.

3.5.2 Closing dispenser doors

1. Slide cover fully left.

2. Push back end of the cover

(onto the arrow) down firmly until you hear a click.

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4 COMPONENTS

4.1 Dishwasher components

4.1.1 Tank

The tank, made of 304 stainless steel, isn’t available as a service part.

4.1.2 Leveling feet (front and rear)

The base is supported by three leveling feet, two front and one rear. The rear leveling foot is adjusted from the front. Front feet have provisions for set screws (in installation parts bag).

4.1.3 Heater

4.1.3.1 Operation

Bosch dishwashers use flow-through heaters instead of exposed elements, saving space and allowing taller tanks holding larger dinner plates. Flow-through heaters prevent dishware damage from exposed elements and allow water to be continuously filtered and heated.

Heating element

Seal

NTC/Hi-limit

To upper

spray ar

To lower

spray arm

From circulation pump

Filtered water from the sump flows through the circulation pump into the flow-through heater. 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.

4.1.3.2 Heater ratings

 120 VAC, 60 Hz, 1200 W  Heats water about 2ºF / minute

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Flow

switch

4.1.3.3 Softer bearing (UC/11 and later)

Softer bearing (UC/11 and later) & non-softer bearing (UC/06) heater assemblies, circulation pumps and sumps cannot be mixed and matched. Softer bearing heaters don’t fit in older models and older heaters don’t fit in softer bearing models.

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

• Softer bearing models (UC/11 & above) have gasket

assembled to heater and have a separate hose clamp (order # 172272).

• Older models (UC/06) have a separate gasket and do

not have a hose clamp.

4.1.3.4 Top Rack Only

Models with Top Rack Only have separate actuators mounted

underneath heater assemblies. The actuator moves a magnetic float to block the lower rack port, diverting water to the top rack.

Lower

spray arm

Lower spray arm

Magnetic

float

Magnetic float

Magnet

The actuator moves a magnet under the magnetic float so the north poles align, repelling the magnetic float upward until it blocks the water flow to the lower spray arm.

ctuator (hot

wax motor)

ctuator (hot

wax motor)

Heater with top rack housing

Both racks

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Top rack only

4.1.3.5 Half Load

Starting with UC/33 dishwashers, Half Load replaced Top Rack Only. Like Top Rack Only, it uses 30% less water, saving water and energy. Unlike Top Rack Only with mechanical actuators, Half Load is done by control software (through shortening cycles)

and doesn’t limit water flow to the top rack.

4.1.3.6 Water switch

Motor operated water switches are mounted underneath heater assemblies. They consist of a motor-controlled disk with 3 holes which rotates and lines up over two sump ports (upper / lower spray arms) to provide precise water control to upper, lower or both spray arms.

Models with water switches & Top Rack Only use water switches

to divert water. Separate actuators aren’t needed.

Top view

Cam

Microswitch

Plunger

European disk shown, which is different than U.S. disk

Bottom view

Where plunger engages heater Where plunger engages sump

Models with water switches need stronger circulation pumps (#

437345) with separate motor starters (# 182318). Circulation pumps, heaters & sumps for water switch / non-water switch models can’t

be interchanged.

4.1.4 Circulation pumps

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.

Depending on features, dishwashers have one of four types of circulation pumps. Pumps use different controls, wire harnesses, heaters & sump filters, so replace with identical replacement pumps.

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Disk

4.1.4.1 “Sisme” (UC/06 through UC/23)

It has a capacitor start motor with a centrifugal switch cutting out the starting capacitor once the motor comes up to speed. This pump can be replaced as # 239144 pump assembly, # 266511 motor only or # 167085 impeller kit.

It has a ceramic seal keeping water from entering the motor and an 8mm nut on the impeller to free it if it should ever stick.

4.1.4.2 “Sisme” pump with PTC motor starter

Pump # 437345 pump is more powerful for use with heaters with water switches and sumps with extra filter cylinder. It uses a separate motor starter (# 182318) attached to the motor terminals. It can use # 167085 impeller kit.

The (PTC) circulation pump motor starter cuts out the start winding after the motor starts.

4.1.4.3 “Sicasym” (UC/21 through present)

8mm nutdriver

Most common pump (used starting with UC/21 index). Smaller than 239144 “Sisme” pump. Used with controls & single wire harnesses designed for Sicasym pumps. Motor controls have motor starter software, so there are no mechanical starters.

Sump

Impeller

There is no impeller kit.

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Sump

access to

impeller

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