For Service Technician Use Only
DIAGNOSTICS AND TROUBLESHOOTING (Cont.)
2-8
n
Whirlpool
®
and KitchenAid
®
Filtration and Maytag
®
24" Microfiltration Dishwashers
Service Error Codes (Continued)
FUNCTION CODE ERROR CODE
CAUSES
WHAT TO CHECK
8 - Inlet Water
5 - Fill valve
stuck open
Control detects water flowing through
flow meter when fill valve is turned off
Confirm dishwasher fills while door is open.
˗ If yes, unplug dishwasher or disconnect power,
turn off water to dishwasher, replace fill valve and
turn water back on.
˗ If filling stops with door open, but fault is detected
while running a cycle, unplug dishwasher or
disconnect power and replace control.
Fill valve TRIAC on control shorted
If dishwasher does not fill with door open, but F8E5
or F1E1 is detected while cycle is running, the fill
valve TRIAC is shorted. Disconnect power and replace
control.
6 - Flow meter
Disconnected or damaged flow meter
NOTE:
Control is programmed to
default to timed fill sequence if flow
meter malfunctions. Intermittent flow
meter connection may cause incorrect
fill levels or false fault codes to be
recorded.
1. Unplug dishwasher or disconnect power.
2. Check connections to flow meter with meter.
Verify that connector is securely connected at
the flow meter end and wires are not pinched/
damaged. Reconnect wires and/or replace
damaged components.
3. Inspect water inlet and flow meter for signs
of obstruction that prevent flow meter wheel
from turning. If wheel does not turn, or turns
intermittently, when water is flowing, replace
water inlet assembly.
9 - Draining
1 - Not draining
Obstructed drain hose or path
1. Unplug dishwasher or disconnect power.
2. Check for blockages from drain motor to
customer's plumbing. Check for plugged garbage
disposal or plug not knocked out, plugged hoses or
drain check valve stuck.
Drain pump impeller damaged
1. Unplug dishwasher or disconnect power.
2. Remove drain pump and check impeller (normally
there is some uneven resistance when pushing it).
If it is stripped or visibly damaged, replace drain
pump.
Drain motor electrical problem
Check other fault codes to see if F9E2 is also
recorded. See F9E2 description below.
Wash motor problem
1. Check other fault codes to see if F7E1 is also
recorded. Control uses wash motor signal to verify
drain so a failed wash motor can cause a drain
fault to be detected.
2. Check wash motor and filter assembly for proper
function.
2 - Drain motor
electrical
problem
Loose connection in drain motor
circuit and/or open drain motor
winding.
1. Unplug dishwasher or disconnect power.
2. Check resistances of drain motor winding and all
connections in the drain circuit. Fix/replace open
connection/part.
Debris stuck in drain motor impeller
causing locked rotor
1. Unplug dishwasher or disconnect power
2. Remove drain motor and dislodge debris from
impeller. Inspect for damage before reassembling.
Open fuse on control to drain motor
Refer to “Fuse Service and Resistance Check” in
section 3.
Drain motor drive circuit on control
1. Unplug dishwasher or disconnect power.
2. Check resistances of drain motor winding and all
connections in the drain circuit. If all connections
and drain motor winding measure good, replace
control.
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