Danby DDW1805, DDW1802 User Manual

Danby Products Ltd°

DDW1802 DDW1805

SERVIC_ MANUAL

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BHDEX

t, PRODUCT SPECIFICATIONS

2, SCHEMATIC DIAGRAM

3. WiRiNG DIAGRAM

4, TIMER CYCLE CHART

5, COMPONENT OPERATION AND REPAIR

6, TROUBLE SHOOTING

7, PARTS LiST AND DIAGRAM

SPECIFICATION

MODEL

ELECTRICAL

Motor (HP)

Motor (Amps)

Heater Wattage

Wash

Total Amps (Load Rated)
Thermostat Contacts

Close at

WATER SUPPLY

Suggested Min. Incoming Water

Pressure (PSi) MinimumlMaximum

_Consumption (Toil Gallons)

LWater Valve Flow Rate (GPM)

DDW1802

120V 60Hz

115

and

1000W

9,2A

127°F +5°F

58-+3_-

120°F to 150°F

49_-to 66__=

15/120 PSI
318"

3.5+5%

, 1.08GPM+10%

DDW1805

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COMPONENT OPERATION AND REPAIR

SAFETY PRECATIONS

Always turn off the electric power supply before servicing any electrical

component,makingohmmeterchecks,orreplacinganyparts.,

All voltage checks should be made with a voltmeter having a full scale range of

130 volts or higher.

After service is completed, be sure all safety-grounding circuits are complete, a!t

electrical connections are secure, and all access panels are in place.

TIMER

With the timer, user selects the various cleaning cycles of the dishwasher. The
timer controls all the electrical functions of the dishwasher in all stages of each

cycle.. All functions can be traced on the chart.. Diagram provided in this service

manual..

ToTegtTt_eTinier

If the timer is suspected of faulty operation, reference timer chart and electrical
schematic diagram and proceed as follows:

1. Index the timer to the first increment of the normal cycle, which is a drain
period.

2. If the pump motor fails to operate during the first cycle increment, check for
power at the pump motor connector block, if there is no power check the door

latch switch, if there is power, check the pump motor as described in this
section.

3o If the pump motor does operate, let the timer motor advance the timer through

the drain increment to determine if the timer motor and drive train are fully
operative.

4. Let the timer advance, or index it forward to the portion of the cycle in
question..

5. If a component controlled by the timer fails to function as the timer advances
through the cycle, check for voltage at the timer terminals, tf the check voltage
is supplied to the component, check the component as described in this

section
Continuity through timer contacts, other controls, and wires can also be
checked with an ohmmeter with electrical power disconnected.

If the timers contacts fail to close in the sequence shown on the timer chart
are burned (have resistance measurable with an ohmmeter), or if timer does
not advance automatically, replace the timer.

To Replace Timer

I Disconnect dishwasher from electrical supply

2.. Remove the timer knob..

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Figure 1 Figure 2

.,

Remove the screws which locking the control panel (See figure 1) Remove the knob and
unscrew the two screws which locking the timer on the control panel (See Figure 2,)

4

Take down the damaged timer and JnstalJ a new timer, reverse procedures to complete
re ure 3and 4,)

Figure3

Figure4

DOOR LATCH AND SWITCH ASSEMBLY

The latch and switch are located in the door assembly behind

dishwasher will not operate until the door is closed; the latch engages the door catch

To Test Or Replace Door Switch.,

1., Disconnect dishwasher from electrical supply,.

2, Remove screws securing the control panel to the inner door (See Figure 1)

3. Remove wire leads from latch switch

4, Use ohmmeter and check switch for continuity,
5 If the switch tests is good,

Check dishwasher electrical power

Check to see if timer is defective

If switch is defective remove door switch from latch assembly,

6. tnstall new switch and reverse procedures to complete repairs,

To Replace Door Latch Assembly

1., Disconnect dishwasher from electrica! supply,,

2, Remove screws securing the control panel to the inner door,

3 Remove wire leads from door latch and remove screws securing door latch assembly to

inner door (See Figure 5 )

the control panel The

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Figure 5

4. Install new door latch assembly and reverse procedures to complete repairs,,

FLOAT SWITCHASSEMBLY

The water float assembly is located in the right lower side of the dishwasher (the

portable located behind the lower front crosspiece).. When too much water enter

the dishwasher, the water will enter the float support through the overflow pipe,
the float will make the floating .switch acts, the electrical supply to the water valve

will disconnected and the drain pump keep on working.

If the switch fails to operate, check the following:
o Loose connection at the switch terminal

• Switch not installed properly.

, Warped stem on float, not contacting the actuator blade,
, Float support restricts free float movement.,

° Check if the float support is cracked

. Food or foreign material restricting free float movement.,

• If the rubber ca lost(See

Figure 7

To Remove Or Replace Float Switch

1, Disconnect dishwasher from electrical supply.

2, Remove electrical leads to float switch,

Take down the switch from float support,,

4. Install new float switch and reverse procedures to complete repairs (See figure 6),,

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TROUBLESHOOTING

The troubleshooting cheek list is common for all dishwasher models°
They use different parts to accomplish the same thing and diagnosis wilt

remain similar°

When a problem arises, and a possible cause is listed, follow the test,
remove or replace procedures as outline in this service manual, The

wiring diagram, shematic and timer cycle chat is a necessity when

maklng electrical checks. In most cases an ohmmeter will handle all _he

tests necessary.

For checking any particular cycle of operation, it absolutely necessary

that the cycle be set up as outlined in the product owner's 9uide.

SYMPTOM REMENDY

Dishwasher will not .fuse (blow nor tripped) Replace fuse or reset breaker,.
operation when turn on Repair or replace_,

CHECK THE

FOLLOWING

=Supply fine receptacle, widng

harness

Dishwasher stop washing

but draining

Water can't pour out from
float support when pull
out the rubber cap.

Dishwasher runs but not

heat

Dishwasher will not stop,

Dishwasher runs with

_en

Motor hums but will not
start or run,.

Motor trips out on in
terminal thermal overload

pro{ector

.Timer (contacts open or burnt)
=Motor (inoperative, check

resistances),

• Door switch (open contacts)
=Door latch not making contact

with door switch

• Overflow occur

= Hole in the float supply is

jammed,,

.heater element (open).

,Timer contacts (open or burnt).
=Wiring or t_rminal (burnt or

broken).
= Thermostat is closed.

,Timer motor (inoperative).
=Wiring or terminal (burnt or

broken).
,Timem_oe_ burnt contactl:____

,,Defective door safety switch.,

• Start winding(open),,

• Motor (bad bearings or locked

rotor). ...........

=Start relay not dropping ouL
nlmproper vottage,

=Seal faces binding,

•Motor shah blnding.
=Motor windings shorted

Replace timer,,

Replace motor

Replace door switch
Replace or adjust to

contact

Check the reason of overflow

pullouttherubber cap wait for

a minute let water pour out.
Suck with dust cleaner or other

let water pour out

Replace heater element,
Replace timer,

R_p_lr orreplac_

R_lace.
Replace timer
Repair or replace

Replace timer.

Replace door safety switch..

Replace motor.
Replace motor.

Replace start relay
Gheck voltage,

Repair or replace,
Repair or replace.
Repair motor.

Ctean and clear area.

make

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Repeated dishwash_-
cycles

Timer does not advance
automatically

Dishwa"sher wii'i not fili
with water,

Incomplete water fill

Too much water fill

D'IshwasheI" Will not pum'p
out

Water siphons out..

Water leaks.

Poor w_sh ability

•Timer (contact's o_p'en or burnt)
=Motor (inoperative, check

resistances): .........

.Timer motor (stalled or open).
.Check timer for power to timer

motor.
=Timer shaft bindinl] or knob

interference to escutcheon.

•Water supply turns off

• Defective inlet valve,

-Check valve screen for
obstructions

.Defective float switch

=Timercontact_(openorburnt),

,Wtrin 9 (broken or burnt_,

• Low water pressure

• Clogged water inlet valve

screen,

=Timer advanced past sta_ of fill

cynic,

-Heavy water supply usage

elsewhere in home,

• Kinked or restricted fllf hose,

water inlet valve to till tunnel

=Water inlet fill valve defective
=Timer contacts (open or burnt)

=FI0at arm binding or out of

adjustment

=Possibility customeduser turned
timer past drain cycle.
,Drain pump is restricted

• Damaged impeller..
=Wiring or terminal (contacts

0_0_penorburntL,

.Drain hose loop to low.
=Drain line connected to a tioor

drain not vented.

.Spray arm not rotating or split

O Overcharge of water

,Tub seal (torn, worn or loose)
=Dishwasher door not sealing

properly.

aDishwasher is not level

• Overburden (wrong type of
detergent).

ahoy, clamp_ _oose_

• Heater element mounting nuts
loose

=Water seal leaking.

• ,.ring is not in position.

• Motor and pump assembly not

seated proper in tub liner bottom.

_Spray arm not rotating.

• improper loading of dishes,

pans and other_.

-Detergent dispenser inoperative

m_nsuff_cient amount of detergent
Or the detergent Is old

=Damaged or the Impeller I_

broken.

• Detergent not dissolve

,:,,J

Replace timer

Replace timer

Replace timer
Replace timer

Repair or adjust

Turn water supply on.

Replace inlet valve_
Disassemble and clean screen.

Replace switch_
Replace timer,

Repair or replac e .
Minimum water pressure of

15P.S 1

Clean water inlet valve screen
Instruct customer/user to turn

tfmer dial to start indicator

m_r_,

Use dishwasher when water
usage is at a minimum.

Correct as needed

Replace water inlet fill valve
Replace timer.

Repair,adjustorreplace.

Instruct customertuser

Clear restrictions
Replace drain pump,

Replace timer

Move to proper hetght..
Install vent air gap at counter

Check for proper rotation or
replace spray arm

Check and correct for proper

fill

Replace tub seal..
Adjust door latch assembly

andlor strike..
Level dishwasher properly

Instructs customer/user.

_')ghtenaii clamps secure_.

Tighten the nut

Use a new water sear,

Adjust the ring or replace a

new.
Replace seat.

Clleck for proper rotation
instructs customeduser on

proper loading per owner's
guide..
Repair or replace dispenser

On proper amount of fresh

deter gent to use
Replace pump a_embly.

incoming water temperature of

t40"F is required to proper

dissolve detergent,

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• Improper loadlng of dish'esi-lOO"_"
and other,,

,,Heating element (open),

• incoming water temperature too
low,

• Wiring or terminal (broken or

burnt) ....

..... tergentcupwi, not

open.

Door will not lath.
Rinse agent liquid will not
eject,

Rinse agent liquid leaks..

Noisy pump asse'mbly.,

• Cup binding.

• Roll pin retainer or shaft broken.
=Defective bi-metal.

,Timer contact (open or broken).

Door latch damaged.

=Electromagnetic valve defectlve,
,Rinse agent dispenser not

mounted correctly.

=Plunger stuck or held in closed

position.

,Container cracker or broken
=Defective seal on plunger.

,Over filling container.

'impellers not prol_eriy shimmed

or rubbing

oPump parts not properly

installed.

•,Debris in bottom of tub sump
area.

Dishwasher continues to
fill or continues to fill

even though In case of

thereIs no voltaget0 fill

valve.
Detergent left In

dispenser..

Softener leaki;ng ,Softener broken. ....

Leaking form air inlet. ,Air Inlet nut loose

,Defective motor bearings.
=Something (dirt or foreign

material) under diaphragm in
water Inlet valve,

_Defectlvewaterinlet fill valve,

• Detergent cup h'eid' or blocked

by large dishes.

• Dispenser wet when detergent

was added.

=_ioffener nut loosen.

=Air Inlet install up side down._.'

Instruct customerluser on
proper loading per owner' s

guide
Replace heating element
Incoming water temperature of

t40°F for best drying results.

I Replace or repair.

Repair or replace.

Replace pin, retainer or shaft
Repair or replace

Replace timer.

.. Replace door latch. :

Replace valve.
Mount securely to rear of inner

door panel
Free plunger or adjust plunger

release.

Replace container

Replace plunger..
Follow instructions in owner's

manual,

Use shim gauge furnished in
impeller and seal kit, when
seals are properly shimmed the
impellers wilt be in correct
operating position
Inspect and correct.

Cleanout sumparea,

Replace motor

Clean water inlet valve or
replace..

Replacewater inletvalve,

On proper loading dishes,,
Instructs customerluser

'Replace softener

Screw down softener cap.
screw down air inlet nut.

Reinstall air inlet properly. .

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