For Service Technician Use Only
DIAGNOSTICS AND TROUBLESHOOTING (Cont.)
Whirlpool
®
and KitchenAid
®
Filtration and Maytag
®
24" Microfiltration Dishwashers
n
2-7
FUNCTION CODE ERROR CODE
CAUSES
WHAT TO CHECK
8 - Inlet Water
3 - Suds / air in
pump
Too many suds
1. Start a cycle, allow unit to fill and wash for
1-2 minutes. Open door and check for excessive
sudsing.
2. Confirm using proper dishwasher detergent, not
hand detergent.
3. Check for excessive rinse aid leakage. Disconnect
power and replace dispenser if rinse aid is leaking.
Bowls or pots loaded or flipped upside
down and captured wash water
Instruct customer on loading. Refer to
.
Water leaking from dishwasher
Check for leaks under dishwasher.
Diverter disk in sump missing
Remove lower spray arm, rear feedtube, and outlet
cover and verify whether the diverter disk is installed.
4 - Overfill
switch open
Overfill switch unplugged
Remove access panel and inspect overfill switch
assembly. Ensure connector is fully seated.
Water in leak pan under unit
Remove access panel and check for water in leak
pan. If water present, unplug float switch, remove
pan and empty it. Replace pan and reconnect the
switch. Press Cancel key twice to remove unit from
error mode. Verify that fault code is not re-detected
by control.
NOTE:
Root cause of overfill must be corrected or
customer will experience another overfill and service
call in the future.
Overfill switch stuck in open/up
position
1. Remove access panel and inspect overfill switch
assembly and pan for water or obstruction. Verify
that Styrofoam float is able to move freely and you
hear the "click" of switch contacts when it is down.
2. Unplug dishwasher or disconnect power and check
resistance of overfill switch. Switch should be
shorted when float is down.
Drain issue
Check other fault codes to see if F9E1 and/or F9E2
have been recorded. See info for these fault codes
below.
Fill valve mechanically stuck open
Check other fault codes to see if F8E5 is also
recorded. See info for F8E5 below.
Fill valve TRIAC on control shorted
Check other fault codes to see if F1E1 is also
recorded. See info for F1E1 above.
Unit not level and water surges down
overfill funnels into leak pan during
cycle
Check levelness of dishwasher. If unit is tilted
forward, water is more likely to enter funnels and fill
leak pan. Adjust unit until level. Empty leak pan.
Air pressure surges when door is
opened and immediately closed while
dishwasher is hot can force water
droplets down funnels into leak pan.
Instruct customer to leave dishwasher open a few
minutes if door is opened when unit is hot. Empty
leak pan.
Too many suds
1. Start a cycle, allow unit to fill and wash for
1-2 minutes. Open door and check for excessive
sudsing.
2. Confirm using proper dishwasher detergent, not
hand detergent.
3. Check for excessive rinse aid leakage. Disconnect
power and replace dispenser if rinse aid is leaking.