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