Component Testing; Inlet Valve Solenoids - Whirlpool CHW9050 Service Manual

Before testing any of the components, perform
the following checks:
• Control failure can be the result of corrosion
of connectors. Therefore, disconnecting
and reconnecting wires will be necessary
throughout test procedures.
• All tests/checks should be made with a
VOM or DVM having a sensitivity of 20,000
ohms-per-volt DC, or greater.
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
See page 4-10 for the procedure to access the
water inlet valves.
To check the inlet valve solenoids at the
component terminals, perform the following
steps:
1. Unplug washer or disconnect power.
2. Disconnect the solenoid connectors from
the inlet valve terminals.
3. Set the ohmmeter to the R X 100 scale.
4. Touch the ohmmeter test leads to any of
the cold or hot water connector terminals.
The meter should indicate 1,000 ± 50 ohms
for either coil.

COMPONENT TESTING

Electrical Shock Hazard

INLET VALVE SOLENOIDS

• Check all connections before replacing
components. Look for broken or loose
wires, failed terminals, or wires not pressed
into connectors far enough.
• Resistance checks must be made with
power cord unplugged from the outlet,
and with wiring harness or connectors
disconnected.
• Unless stated otherwise, make all
resistance checks by disconnecting the
component connector at the Central Control
Unit (CCU).
To check the inlet valve solenoids at the CCU
perform the following steps.
1. Unplug washer of disconnect power.
2. Disconnect the inlet valve solenoid
connector DI6 and VCH7 from the CCU
(See page 4-9).
3. Set the ohmmeter to the R X 100 scale.
4. Touch the ohmmeter test leads to the
following connector pins. The meter should
indicate 1,000 ± 50 ohms.
• VCH7 Connector
Pins 1 & 3 (cold
#2)
Pins 5 & 7 (cold
#3)
• DI6 Connector
Pins 1 & 3 (hot #1)
5-1
COLD #2 COLD #3
Connector VCH7 at CCU