Test #5: Inlet Valve - Whirlpool WFC8090GX Service Manual

Electrical Shock Hazard
Only authorized technicians should perform
diagnostic voltage measurements.
After performing voltage measurements,
disconnect power before servicing.
Failure to follow these instructions can result in
death or electrical shock.

TEST #5: Inlet Valve

This test checks the electrical connections to the valve and
the valve itself. The inlet valve is a double valve consisting of a
main fill and condenser valve.
1. Check the relays and electrical connections to the valve
by performing the Service Diagnostic Mode Tests on page
2-3. The following steps assume one or more of the valves
did not turn on.
2. For the valve(s) in question, check the individual solenoid
coils:
a. Unplug washer/dryer or disconnect power.
b. Remove top panel to access the inlet valve, and then
gently lay washer/dryer on its right side to access the
ACU. Remove AC shield and ACU cover.
c. Remove connector J4 from the ACU. Refer to ACU
diagram on page 3-5.
d. Check harness connections to the solenoid valves.
Verify continuity in harness between ACU and solenoid
valves.
INLET VALVE ASSEMBLY
WATER VALVES
L1
RFI-L
J1-2
For Service Technician Use Only
DANGER
ACU
J4-1
RELAY
3. Check valve coil resistance at the valve, or across the
following connector pinouts:
Valve
Main Fill Valve
Condenser Valve
Resistance should be 890 - 1.1k Ω.
¾ If resistance readings are outside the range or open,
replace the valve assembly.
¾ If resistance readings are within range, reconnect J4.
Go to step 4.
4. Plug in washer/dryer or reconnect power.
5. With a voltmeter set to AC, attach the leads across the
pins of the suspect valve (see chart in step 3). Run the
Service Diagnostic Mode Tests and check for line voltage
across the pins of the valve. NOTE: Refer to the Service
Diagnostic Mode Tests on page 2-3 to determine when the
main fill and condenser valves are actuated.
¾ If line voltage is present and valve still does not
activate, replace valve assembly.
¾ If line voltage is not present, replace the ACU.
6. Unplug washer/dryer or disconnect power.
7. Reassemble all parts and panels.
8. Perform the Service Diagnostic Mode Tests on page 2-3 to
verify repairs.
MAIN FILL
CONDENSATION
INLET VALVE
890 - 1.1K Ohms
Figure 2 - Inlet Valve Strip Circuit
Whirlpool Smart All-In-One Washer & Dryer
COMPONENT TESTING
Pinout
J4, pins 1 & 6
J4, pins 1 & 4
Condensing
Valve & Hose
Valve
Connector
Main Fill
Valve & Hose
Figure 1 - Inlet Valve
ACU
J4-6
J4-4
L2
RFI-N
J1-1
3-9
n