For Service Technician Use Only
DIAGNOSTICS AND TROUBLESHOOTING (Cont.)
2-16
n
Whirlpool
®
and KitchenAid
®
Filtration and Maytag
®
24" Microfiltration Dishwashers
Troubleshooting Guide (Continued)
CUSTOMER DESCRIPTION
POTENTIAL CAUSES
CHECK
RELATED
ERROR
CODES
Sanitized LED blinks or
incomplete sanitization
message at end of cycle
(Control could not confirm
sanitization achieved)
Loose or intermittent connection in door
switch circuit:
˗ Sloppy door latch assembly (Can
be aggravated by high door closure
force keeping strike plate from fully
seating).
1. Check strike plate and door closure
force. Verify door seal is seated
properly. Check for interference
between dish racks and door. Try
bending strike plate down for better
engagement.
2. Unplug dishwasher or disconnect
power.
3. Check resistances of door switch
contacts and all connections in the door
switch circuit with meter, while opening
and closing the door latch.
˗ If high resistance with door closed,
check/fix loose connections.
4.
Measure resistance of door switch
contacts while checking mechanical
operation of latch assembly. Check for
broken plastic pieces on latch assembly.
Replace latch if faulty.
Line voltage too low to heat fast enough
for sanitization.
Confirm at least 100 VAC at power source.
Air pressure surges due to washing with
high suds causes brief opening of door
switch contacts during final rinse.
Refer to “
” table.
F8E3
Melted dishware and/or spray
arm and/or dishwasher always
hot
Customer uses non-dishwasher safe
dishes or loads plastic dishes directly
over heater
Instruct customer.
Temperature sensing problem
Refer to “
” table.
F3E1
Heating problem
Refer to “
” table.
F4E2
F4E3
Heater displaced from mounting clip
and/or pulled off center
Inspect heater. Adjust back into position if
needed.
Noisy operation
Spray arm stalled or blocked and
spraying on door
˗ Instruct customer if blocked
˗ Check spray arm rotation and check
for plugged nozzles. If plugged, clean
nozzles and inspect filters.
Diverter problem
Refer to “
” table.
F10E4 (FAE4)
No or low water
Refer to “
” table.
F8E1
F8E2
F8E3
Drain periods are too long
Control is programmed to run drain until
complete. Long or partially obstructed
drain hose may cause long drain periods.
Run Service cycle and verify that drain is
completed in approximately 1 minute.
If drain is long, inspect drain path from
dishwasher to customer's plumbing for
issues.
Loose connection in vent circuit and/or
open vent wax motor
Unplug dishwasher or disconnect power
and check resistances of vent wax motor
and all connections in vent circuit. Fix/
replace open connections/part.
F10E2 (FAE2)