FOR SERVICE TECHNICIAN'S USE ONLY
Water Level Controls
3 Water Inlet Valves – Test #6
3 Water Level Sensor – Test #7
3 Drain Pump – Test #8
TEST #6: Water Inlet Valves
This test checks the electrical connections to
the valves and the valves themselves. Water
valve names and locations are as follows:
Cold 1 (C1)
Cold 2 (C2)
Figure 6a - Water Inlet Valves (steam models)
Cold 1 (C1)
Cold 2 (C2)
Figure 6b - Water Inlet Valves (non-steam models)
DO NOT REMOVE OR
Hot 1 (H1)
Steam Valve
(hot water)
Hot 1 (H1)
DESTROY
1. Check the relays and electrical connections
to the valves by performing the "Quick Diagnostic
Test" on page 6. 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 or disconnect power.
b. Remove top panel to access machine
electronics.
c. Remove connectors J12 and J2 from
the ACU, and if a steam model, connector J7.
Refer to ACU diagram on page 13.
d. Check harness connections to the
solenoid valves. Verify continuity in harness
between ACU and solenoid valves.
3. Check valve coil resistance at the valves,
or across the following connector pinouts:
Valve
Cold 1 Fill Valve
Hot 1 Fill Valve
Cold 2 Fill Valve
Steam Valve *
* Steam model only
Resistance should be 890–1.1k Ω.
If resistance readings are outside the range
or open, replace the valve assembly.
If resistance readings are within range,
reconnect J12 and J2 and, if applicable,
J7 to ACU. Go to step 4.
4. Plug in washer 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 "Quick
Diagnostic Test" and check for line voltage
across the pins of the valve. NOTE: Refer
to the "Quick Diagnostic Test" on page 6
to determine when the cold, hot, and steam
valves are actuated. (Example: Cold 1 valve
is actuated during test phase C02 or C2.)
If line voltage is present and valve still does
not activate, replace valve assembly.
If line voltage is not present, replace the ACU.
6. Unplug washer or disconnect power.
7. Reassemble all parts and panels.
8. Perform the "Quick Diagnostic Test"
to verify repairs.
Pinout
J12, pins 1 & 3
J12, pins 5 & 7
J2, pins 1 & 3
J7, pins 1 & 3
PAGE 17