Maytag MVWB300WQ0 Manual

FOR SERVICE TECHNICIAN ONLY – DO NOT REMOVE OR DESTROY
WARNING
Electrical Shock Hazard
Disconnect power before
servicing.
Replace all parts and
panels before operating.
Failure to do so can result
in death or electrical shock.
IMPORTANT
Electrostatic Discharge (ESD) Sensitive
Electronics
ESD problems are present everywhere. ESD may
damage or weaken the electronic control assembly.
The new control assembly may appear to work well
after repair is finished, but failure may occur at a later
date due to ESD stress.
Use an anti-static wrist strap. Connect wrist strap
I
to green ground connection point or unpainted
metal in the appliance -OR- Touch your finger
repeatedly to a green ground connection point or
unpainted metal in the appliance.
Before removing the part from its package, touch
I
the anti-static bag to a green ground connection
point or unpainted metal in the appliance.
Avoid touching electronic parts or terminal
I
contacts; handle electronic control assembly by
edges only.
When repackaging failed electronic control
I
assembly in anti-static bag, observe above
instructions.
DIAGNOSTIC GUIDE
Before servicing, check the following:
Make sure there is power at the wall outlet.
I
Has a household fuse blown or circuit breaker tripped?
I
Was a regular fuse used? Use a time-delay fuse.
Are both hot and cold water faucets open and water
I
supply hoses unobstructed?
All tests/checks should be made with a VOM (volt-ohm-
I
milliammeter) or DVM (digital-voltmeter) having a
sensitivity of 20,000 Ω per volt DC or greater.
NOTE: Avoid using large diameter probes when
checking harness connectors as the probes may
damage the connectors upon insertion.
SOFTWARE COPYRIGHTED. MANUFACTURED UNDER ONE OR MORE OF
THE FOLLOWING U.S. PATENTS:
4,693,095 4,891,959 5,191,667 5,345,793
4,697,293 4,910,979 5,191,668 5,359,744
4,700,554 4,945,735 5,191,669 5,373,715
4,709,951 4,947,516 5,193,361 5,460,018
4,715,401 4,969,341 5,199,127 5,493,745
4,719,769 4,972,134 5,199,281 5,504,955
4,754,622 4,977,394 5,200,684 5,507,053
4,759,202 4,986,093 5,205,141 5,515,565
4,774,822 4,987,627 5,219,370 5,582,039
4,779,431 5,000,016 5,233,718 5,582,199
4,782,544 5,031,427 5,249,441 5,651,278
4,784,666 5,033,277 5,255,844 5,671,494
4,785,643 5,074,003 5,257,901 5,765,404
4,793,820 5,075,613 5,259,217 5,784,902
4,807,452 5,113,542 5,269,160 5,791,167
4,809,524 5,130,624 5,271,251 5,836,180
4,835,991 5,150,588 5,297,403 5,852,942
4,854,559 5,154,071 5,305,485 5,875,655
4,856,303 5,166,568 5,312,138 5,878,602
4,870,988 5,167,722 5,314,044 5,883,490
4,888,965 5,172,573 5,345,637 5,946,946
4,890,465 5,177,659 5,345,792 6,065,171
P A R T N O . W10093831A
Check all connections before replacing
I
components. Look for broken or loose wires, failed
terminals, or wires not pressed into connectors
far enough.
A potential cause of a control not functioning
I
is corrosion or contamination on connections.
Observe connections and check for continuity
with an ohmmeter.
Connectors: Look at top of connector. Check for
I
broken or loose wires. Check for wires not pressed
into connector far enough to engage metal barbs.
Resistance checks must be made with washer
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unplugged or power disconnected.
DIAGNOSTIC TESTS
There are three diagnostic test modes available:
Automatic, Manual, and Console and Indicators. These
tests allow the factory or service personnel to test
and verify all inputs to the machine/motor control.
You may want to allow the automatic test cycle to
complete prior to going into specific troubleshooting
tests, to verify all washer's subsystems functionality.
ACTIVATION OF AUTOMATIC
DIAGNOSTIC TEST MODE
1. Be sure the washer is in standby mode (plugged in
with all indicators off) or in setting mode (plugged
in and power up just before running a cycle).
2. Select any one button (except POWER/CANCEL
and START/PAUSE) and follow the steps below,
using the same button:
a. Press/hold 3 seconds.
b. Release for 3 seconds.
c. Press/hold 3 seconds.
d. Release for 3 seconds.
e. Press/hold 3 seconds.
If this test mode has been entered successfully,
all indicators on the console are illuminated for
5 seconds with
Time Remaining three-digit display.
If indicators do not display as described above,
the press/hold/release procedure above may not
have been performed within the time frame
necessary for successful entry. Repeat step 2
to ensure this was not the cause. If still
unsuccessful, see Diagnostic: Unsuccessful
Entry, at right.
3. The test sequence continues by checking for saved
fault codes:
If there are saved fault codes, see Diagnostic:
Saved Fault Codes, page 2.
If there are no saved fault codes, all indicators
on the console will momentarily turn off, then
turn back on with
5 seconds, the Automatic test, below, begins.
6,070,282 6,658,902 DIAGNOSTIC: Automatic
6,105,403 6,715,175
6,115,863 6,766,670
Performs a five-minute automatic test with water
6,125,490 6,786,058
functions to check major washer functions (lid can be
6,185,774 6,820,447
open). Press the same button used in step 2 above to
6,212,722 6,845,536
6,227,013 6,860,032
advance through automatic test steps.
6,227,014 6,906,270
6,269,666 NOTE: Basket must be floating in order to agitate.
6,927,351
6,347,645 6,961,642
Step C1 must be allowed to complete before
6,363,563 6,966,204
advancing to step C5.
6,393,872 D375,390
6,430,971 D381,140
6,505,370 D423,740
Three-Digit
6,550,292 D426,686
Indicator
6,564,413 D456,572
6,584,811 D459,844
6,591,439 D463,631
C0
6,591,638 D465,308
6,637,062 D474,566
6,640,372 D502,577
6,647,575 D511,955
POUR LE TECHNICIEN SEULEMENT – NE PAS ENLEVER NI DÉTRUIRE
8:88
showing in the Estimated
8:88
displayed. After
Washer Recommended
Function Procedure
If no spin, go to
Slow spin to
Manual: Motor, Spin
23 rpm.
test, page 2.
P A G E 1
Three-Digit Washer Recommended
Indicator Function
Warm water fills
through Fresh
and Detergent
valves, then
If no water, or fill
Fresh valve until
temperature is wrong, go
basket floats
to Manual: Water Valves
(disengages);
test, page 2.
C1
then washer
If basket does not float
continues filling
or disengage, determine
through Fresh
cause of friction.
and Detergent
valves to
minimum water
level.
Cold water fills
through Bleach
valve for 10
If no water in bleach or
C2 seconds. Then,
Oxi cup, go to Manual:
Hot water fills Water Valves test, page 2.
through Oxi valve
for 10 seconds.*
Hot water fills
If no water in fabric
through Fabric
softener cup, go to
C3
Softener valve Manual: Water Valves
for 10 seconds. test, page 2.
Warm water fills
If no water in detergent
through
C4 cup, go to Manual: Water
Detergent valve
Valves test, page 2.
for 10 seconds.
Test the heater element
Heater turns on
C5 as described in
♦
for 5 seconds.
TEST #9, page 6.
If no wash action, go to
Agitate for
C6 Manual: Motor, Agitate
15 seconds.
test; page 2.
If water is not being
Recirculate for
C7
recirculated, go to Manual:
10 seconds.
Pumps test, page 2.
If water is not draining,
Drain to basket
go to Manual: Pumps
engaged plus
C8
test, page 2.
timed drain for
If basket does not engage,
10 seconds.
determine cause of friction.
If drain pump is not on,
go to Manual: Pumps
test, page 2.
If basket is not turning,
Drain & Slow
go to Manual: Motor test,
spin 23 rpm for
C9 page 2.
5 seconds, then
If basket does not stop
coast to 0 rpm.
spinning within 10
seconds, press POWER/
CANCEL and restart test.
If no end of cycle beep,
(none)
make sure cycle signal
End of Cycle
(Test
is on before entering
beep.
ends)
service diagnostic mode.
*
C2: A 10 second pause will be observed for models
without an Oxi dispenser.
♦
C5 will be displayed but no action will be taken on
non-heater models.
DIAGNOSTIC: Unsuccessful Entry
If entry into diagnostic mode is unsuccessful (see steps
1 and 2 of Activation of Automatic Diagnostic Test Mode,
at left), refer to the following indications and actions:
Indication 1: None of the indicators or display
turns on.
Action:
Press POWER/CANCEL to enter setting mode.
If indicators come on, try to change the function
for the button used to activate the diagnostic test
mode. If that button fails to change the function,
P È I C E N
Procedure
o
W10093831A