PROBLEM: Poor Wash
Sump check valve stuck
1. Unplug dishwasher or disconnect power.
2. Access the chopper system and verify
check valve opens and closes freely using a
bent wire and flashlight.
Cycle selection of
customer not appropriate
for dish load.
Instruct customer on cycle selection.
Recommend "High Temp" option for wash
Chopper fractured. 1. Unplug dishwasher or disconnect power.
2. Access the chopper system and replace
Plugged or damaged
Inspect following 3 screens. Remove lower
spray arm assembly and inspect
accumulator cover screen. Access chopper
system and check foreign object and
chopper assembly screens. Clean/replace
Spray arms not rotating. Check for free and proper arm rotation by
operating dishwasher and opening door to
see whether arms remain in the same
position. If arms are blocked by dish item,
instruct customer. May also have restricted
movement due to misalignment of the upper
spray arm water delivery system.
Mechanical items covered
See "Wash Pump Will Not Pump", or "Will
Not Drain or Excess Water Left in Unit", or
"Detergent Not Dispensing", or details on
temperature sensing in "Long Cycles and/or
Stuck in Certain Part Of Cycle".
OWI soil sensor picking
low soil cycle too often.
Run Service Diagnostics to check operation
of OWI soil sensor and force a calibration to
occur during the next regular wash cycle.
NOTE: If OWI soil sensor is replaced, run
Diagnostics after installing new OWI to
force calibration on next cycle.
I'm looking at some of the tech sheets