SECTION 4: TROUBLESHOOTING
COMMON PROBLEMS (DOMESTIC UNITS)
Problem: Machine will not fill, other functions work.
1.
2.Water valve(s) turned off. Turn on water valves.
3.Faulty solenoid valve diaphragm. Replace diaphragm, clean foreign material out of valve body and orifices.
4.Faulty solenoid coil. If coil has voltage but no continuity, replace coil (continuity is measured across coil connectors with wires removed).
5.Faulty fill microswitch. Will not fill during cycle only. During fill, measure between the ORANGE and WHITE/GREEN wires. If 120V, adjust or replace switch).
6.Faulty OFF/ON/FILL switch. Depress switch, measure between BLACK and WHITE/GREEN wire. If 120V, replace switch.
Problem: Machine fills continuously, only when the power is on.
1.Faulty fill microswitch. Repair/replace switch.
2.Cam timer stalled in fill position. If cam timer is not rotating, check the voltage to the timer motor. If 120V when door is closed, replace the timer motor.
3.Shorted OFF/ON/FILL switch. Check voltage between BLACK and WHITE/GREEN connections of the switch in the "ON" position. If you do not read 120V, replace switch.
Problem: Wash motor does not run, other functions work, motor runs only when the wash relay is manually pushed down.
1.Loose wire connection to microswitch, relay, or contactor. Tighten wires.
2.Faulty wash cam microswitch. During wash cycle, check voltage between ORANGE and BLACK/ ORANGE wires on the microswitch. If 120V, replace the switch.
3.Faulty delime switch. During wash cycle, check the voltage between the two BLACK/ORANGE wires (not jumpers). If 120V, replace the delime switch.
Problem: Wash motor does not run, other functions work, motor runs only when the wash relay is manually pushed down.
1.Faulty control relay. Check the voltage across relay contacts #7 & #4. If 120V during the wash cycle, replace the relay.
2.Faulty wash relay. Check voltage at relay coil between ORANGE/BLACK and WHITE wires. If you read 120V, coil is faulty. Replace the relay.
Problem: Wash motor does not run even when the wash relay is manually depressed; other functions work.
1.Loose wire connections to motor, delime switch, or from contactors. Tighten wires.
2.Mechanical binding in pump. If motor has correct incoming voltage, and its overload is tripping, repair or replace the pump.
3.Mechanical binding in pump. On end of motor, opposite pump, remove endcap. With large slot type screwdriver, fit into slot in end of shaft. Turn to dislodge. Run motor as normal. If it still does not run, replace motor.
4.Faulty wash motor. If the motor has the correct incoming voltage and the pump is okay, replace the motor.
5.Faulty wash relay. With the wash relay pushed in, check the voltage between T1 and L1 of the relay. If 120V, replace the relays.
6.High or low voltage problem. Check voltage at motor and at power terminal block. Compare to electrical specifications.
Problem: Wash motor runs continuously.
1.The NORMAL/DELIME switch is in the Delime position. Place the switch in the Normal position.
2.Wash relay contacts are welded closed. Turn machine off. If wash relay doesn't release, replace contactor.
3.Cam timer stalled in wash or rinse cycle. If cam timer is not rotating, check the voltage to the timer motor. If no voltage when the door is closed, check wires and/or replace motor.
4.Wash motor microswitch faulty. Tighten connections, make sure switch makes contact, replace if necessary.
Problem: Machine will not hold water.
1.Faulty drain ball. Replace drain ball.
2.Obstructed drain hole. Clear obstruction.
3.Drain linkage is binding. Repair drain mechanism parts.
Conserver XL Series Technical Manual
Issued:
29