Water Level; Drain Pump & (On Some Models) Recirc. Pump - Maytag MVWB835DW Service Manual

TEST #6: Water Level
This test checks the water level sensing
components. NOTE: Usually, if the pressure
transducer malfunctions, the washer will
generate a long fill, or long drain error.
1. Check the functionality of the pressure
transducer by running a small load cycle. The
valves should turn off automatically after sensing
the correct water level in the tub. The following
steps assume that this step was unsuccessful.
2. Drain the tub until all water has been removed.
3. Unplug washer or disconnect power.
4. Remove console to access main control.
5. Check hose connection between the
pressure transducer on the main control and
the pressure dome attached to the tub.
6. Check to ensure hose is routed correctly in
the lower cabinet and not pinched or crimped
inside the console or by the back panel.
7. Verify there is no water, suds, or debris in
the hose or dome. Disconnect hose from main
control and blow into hose to clear water, suds,
or debris.
8. Check hose for leaks. Replace if needed.
9. If the preceding steps did not correct the
problem, replace main control and perform
Service Diagnostics. Run fill cycle to test
and verify repair.
TEST #7: Drain Pump &
(on some models) Recirc. Pump
Perform the following checks if washer does
not drain.
IMPORTANT: Whenever the washer is tilted for
service or troubleshooting, drain water from the
basket and remove any load items in the basket.
1. Check for obstructions in the usual areas.
Clean and then perform step 2.
2. Check the drain pump (and recirc. pump,
on some models) and electrical connections by
turning on the drain pump (and recirc. pump, on
some models) in Service Test Mode on page 4.
The following steps assume that this step was
unsuccessful.
3. Unplug washer or disconnect power.
4. Remove console to access main control.
5. Visually check that the J4 connector is
inserted all the way into the main control.
 If visual check passes, go to step 6.
 If connector is not inserted properly,
reconnect J4 and repeat step 2.
6. Remove connector J4 from main control.
With an ohmmeter, verify resistance values
shown below across the following J4
connector pinouts:
Component J4 Connector Pinout
Drain Pump J4, 1 & 3
Recirc. Pump J4, 1 & 5
 If values are open or out of range,
go to step 7.
 If values are correct, go to step 11.
7. Tilt washer back to access drain pump (and
recirc. pump, on some models). Verify pump is
free from obstructions.
8. Visually check the electrical connections
at the drain pump (and, on some models, the
recirc. pump).
 If visual check passes, go to step 9.
 If connections are loose, reconnect the
electrical connections and repeat step 2.
9. With an ohmmeter, check harness for
continuity between the drain pump (and recirc.
pump, on some models) and main control.
See chart below.
Main Control to Drain Pump (and Recirc. Pump)
Drain Pump Pin 1 to Main Control J4-1 (White Wire)
Drain Pump Pin 2 to Main Control J4-3 (Blue Wire)
Recirc. Pump Pin 1 to Main Control J4-1 (White Wire)
Recirc. Pump Pin 2 to Main Control J4-5 (Lt. Blue Wire)
 If there is continuity, go to step 10.
 If there is no continuity, replace the lower
washer harness and repeat step 2.
10. With an ohmmeter, measure the resistance
across the two pump terminals. Resistance
should be as shown in the chart below:
Component
Drain Pump
Recirc. Pump
 If values are open or out of range,
replace the pump motor.
 If the resistance at the pump motor
is correct, go to step 11.
11. If the preceding steps did not correct the
drain problem, replace the main control.
a. Unplug washer or disconnect power.
b. Replace the main control.
c. Reassemble all parts and panels.
d. Plug in washer or reconnect power.
Perform Service Diagnostics to verify repair.
Correct Resistance
12–15
26–32
Correct Resistance
12–15
26–32
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