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TECH SHEET - DO NOT DISCARD
TROUBLESHOOTING GUIDE
PROBLEM
POSSIBLE CAUSE/TEST
NOTE: Possible Cause/Test MUST be performed in the sequence shown for each problem.
1. 120V electrical supply. See Test #1.
WON'T POWER UP
(Touchpads do not
2. Check harness connections.
respond when pressed)
3. Check touchpad/LED assembly. See Test #4.
1. See Test #1.
2. If "LS" is flashing, open lid to clear it and restart cycle.
WON'T START CYCLE
3. Check harness connections.
4. Check START touchpad. See Test #4.
1. Check STOP/CANCEL touchpad. See Test #4.
WON'T SHUT OFF
2. Check Lid Switch component.
1. Touchpad/LED assembly. See Test #4.
CONTROL WON'T
ACCEPT SELECTIONS
2. Check harness connections.
1. Dispense valves. See Test #2.
WON'T DISPENSE
2. Check harness connections.
3. Check water connections to the unit and within the unit. Check for plugged screen in water source.
1. Fill valves. See Test #2.
2. Check harness connections.
WON'T FILL
3. Check installation.
4. Check water connections to the unit and within the unit. Check for plugged screen in water source.
1. Operating Pressure Switch. See Test #6.
2. Flood Pressure Switch. See Test #6.
OVER FILLS
3. Check pressure hose.
4. Check pump drain system - an over fill could indicate a failure to drain.
1. Check harness connections.
WON'T NUTATE AT ANY
2. Drive motor. See Test #3.
SPEED
3. Drive mechanism failure.
1. Check harness connections.
WON'T SPIN AT ANY
2. Drive motor. See Test #3.
SPEED
3. Drive mechanism failure.
MOTOR OVERHEATS
1. Drive motor. See Test #3.
1. Check pump. See "Spin and Drain Test" in Diagnostic Tests section.
WON'T DRAIN
2. Check pump motor.
3. Check for foreign objects in the pump and sump areas.
1. Check installation.
MACHINE VIBRATES
2. Check leveling feet.
INCORRECT WATER
1. Auto Temp (ATC). See Test #5.
TEMPERATURE
ALL HOT FILLS
1. Temperature sensor. See Test #5.
1. Check pump. See "Nutate and Recirculate Test" in Diagnostic Tests section.
WON'T RECIRCULATE
2. Check pump motor.
RINSE WATER
3. Check for leaks in the recirculation system.
DISPLAY IS FLASHING
1. See "Display Fault/Error Codes" on page 1.
TROUBLESHOOTING TESTS
TEST #1
120 VAC Electrical Supply
Check for 110-125 VAC at electrical outlet. If voltage is
1.
not present, call a qualified electrician.
FOR SERVICE TECHNICIAN'S USE ONLY
2. Check for 110-125 VAC on the power cord connection to
the line filter. If no AC power is present, replace the
power cord.
3. Check for 110-125 VAC on the Line Filter connection to
the machine controller. If no AC power is present, replace
the line filter.
4. Check for 110-125 VAC to the control board. With the
washer off but connected to the AC outlet, measure the
PAGE 7
PART NO. 3954702 REV. A
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