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VIII. Troubleshooting
VIII. Troubleshooting
Dishwasher Parts Issues
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
.…
Most problems are due to broken microswitches on integrated
models. Understandable considering how dishwashers are treated.
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
Impeller
Symptom
Problem
Solution
Impeller won't turn.
Impeller is frozen. Replace impeller with impeller kit # 167085. If
not able to replace impeller, 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.
Impeller cannot be
broken loose.
Replace impeller with impeller kit # 167085. If
pump is faulty, replace entire pump assembly.
Impeller won't turn.
Debris
binding
pump.
Open sump & remove sump pump cover, then
carefully remove debris from impeller. Check
for broken glass to avoid being cut.
Impeller won't turn.
Motor is faulty.
Check resistance at motor terminals or at
control panel (~ 7
Ω
with water switch or 10
Ω
without). Replace motor if faulty.
WARNING
! Unplug dishwasher before starting any repairs.
