Graymills Liftkleen L-Series OMI - Manual (Page 10)

9
TROUBLESHOOTING GUIDE
ELECTRICAL
CONDITION POSSIBLE CAUSE CORRECTION
Pump does not run. Electrical service to motor is not Check electrical supply and
correct. correct.
Motor is burned out. Replace motor or return pump to
factory for repair.
Pump runs but does not agitate. Pump rotation is incorrect Reverse any two electrical supply
(3 Phase Power). lines to motor. (Correct rotation is
CCW - see label.)
Pump runs but is noisy. (Minor Cavitation due to low liquid level. Raise liquid to correct level.
sound created by liquid flow
through pump is normal.)
Tank does not reach operating Electrical supply is not on. Check and correct electric
temperature. service.
Thermostat is set too low. Raise thermostat temperature.
Faulty heater. Check and replace if necessary.
Heating contactor is faulty. Check and replace if necessary.
Tank takes too long to heat up. Electrical supply voltage is Check and correct if necessary.
(See Figure 12 for heat-up times). incorrect.
One element of the tri-element Check heater elements and
heater is burned out. replace heater if necessary.
Excessive heat loss due to Lower rack and lid when unit is
open lid. not in use.
Heater Timer
Tank does not reach operating 115V, Single phase power Turn on.
temperature. supply off.
Timer actuating tripper not Attach tripper.
attached.
Timer actuating tripper incorrectly Position correctly.
positioned.
Faulty timer. Replace.
Faulty transformer. Replace.
Faulty contactor. Replace.