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5-10
FOR SERVICE TECHNICIAN’S USE ONLY
COMPONENT TESTING (continued)
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If any of the measurements do not match the
values shown in the chart, check the harness
of the suspected component between the
CCU and door lock mechanism for con�nuity.
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If the harness and connec�ons are
good, replace the door lock mechanism.
NOTE: To minimize risk of damage to door
lock/switch wires, remove the door lock
mechanism screws before removing the
front panel.
6. If the preceding steps did not correct the
lock problem, replace the CCU and retest door
lock mechanism.
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Unplug washer or disconnect power.
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Replace the CCU.
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Reassemble all parts and panels.
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Perform the “Quick Diagnos�c Test”
to verify repair.
TEST #5: Drum Light (Steam Models)
This test is performed if the drum LED does
not light.
1. On Whirlpool models, pressing the “Drum
Light” bu�on on the console should toggle the
bu�on indicator on and off.
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If the bu�on indicator does not turn on, go
to TEST #2 – “Some bu�ons do not light
indicators”.
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If the bu�on indicator toggles on and off,
go to step 2.
2. Unplug washer or disconnect power.
3. Remove the top panel to access CCU
and user interface (UI).
4. Verify the drum light connector (P13)
is securely connected to the UI.
5. Check harness and connec�ons between
the drum light and the UI.
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If the connec�ons are OK, go to step 6.
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If not, repair or replace as needed.
6. Unplug the drum light connector (P13)
from the UI.
7. Plug in washer or reconnect power.
8. On Whirlpool models, press the Drum
Light bu�on on the console un�l the bu�on
indicator is on. On Maytag models, press and
hold the Steam for Stains/Drum Light bu�on
on the console to ac�vate the LED circuit.
9. With a mul�meter set to milliamps, measure
the current across UI connector P13, pins 1
and 3. If the drum LED driver is working
properly, you should measure 150–370 mA.
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If the current is present, replace
the drum LED.
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If the current is not present, replace the UI.
10. Unplug washer or disconnect power.
11. Reassemble all parts and panels.
Water Level Controls
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Water Inlet Valves – Test #6
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Pressure Sensor/Switch – Test #7
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Drain Pump – Test #8
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Flow Meter – Test #9
TEST #6: Water Inlet Valves
This test checks the electrical connec�ons
to the valves and the valves themselves.
1. Check the relays and electrical connec�ons
to the valves by performing the “Quick Diagnos�c
Test”. 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 or disconnect power.
b. Remove top panel to access machine
electronics.
c. Remove connector VCH7 from the CCU,
and if a steam model, connector VSF2. Refer
to CCU diagram.
d. Check harness connec�ons to the
solenoid valves. Verify con�nuity in harness
between CCU and solenoid valves.
3. Check valve coil resistance at the valves,
or across the following VCH7 and VSF2
connector pin-outs:
* Steam model only
Resistance should be ~990 Ω.
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If resistance readings are tens of ohms outside
the value or open, replace the valve assembly.
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If resistance readings are within range,
reconnect VCH7 and, if applicable, VSF2
to CCU. Go to step 4.
Valve
Pinout
Cold Fill Valve
VCH7, pins 1 & 2
Hot Fill Valve
VCH7, pins 3 & 4
Steam Valve *
VSF2, pins 1 & 2
Содержание WFW94HEX Series
Страница 61: ...5 2 FOR SERVICE TECHNICIAN S USE ONLY COMPONENT TESTING continued ...
Страница 76: ...5 17 NOTES ...
Страница 83: ...7 1 WIRING DIAGRAMS WASHER NON STEAM ...
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