Service Manual

COMPONENT TESTING
Whirlpool Smart All-In-One Washer & Dryer
n
3-9
For Service Technician Use Only
TEST #5: Inlet Valve
This test checks the electrical connecons to the valve and
the valve itself. The inlet valve is a double valve consisng of a
main ll and condenser valve.
1. Check the relays and electrical connecons to the valve
by performing the Service Diagnosc 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 queson, 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 connecons to the solenoid valves.
Verify connuity in harness between ACU and solenoid
valves.
3. Check valve coil resistance at the valve, or across the
following connector pinouts:
Valve Pinout
Main Fill Valve J4, pins 1 & 6
Condenser Valve J4, pins 1 & 4
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, aach the leads across the
pins of the suspect valve (see chart in step 3). Run the
Service Diagnosc Mode Tests and check for line voltage
across the pins of the valve. NOTE: Refer to the Service
Diagnosc Mode Tests on page 2-3 to determine when the
main ll and condenser valves are actuated.
¾ If line voltage is present and valve sll does not
acvate, 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 Diagnosc Mode Tests on page 2-3 to
verify repairs.
Figure 2 - Inlet Valve Strip Circuit
INLET VALVE ASSEMBLY
Figure 1 - Inlet Valve
DANGER
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.
L1
ACU
L2
890 - 1.1K Ohms
INLET VALVE
WATER VALVES
J1-2
J4-1
ACU
J1-1
J4-6
MAIN FILL
CONDENSATION
J4-4
RELAY
RFI-L
RFI-N
Main Fill
Valve & Hose
Valve
Connector
Condensing
Valve & Hose