SCN60
Service
Component Diagnostics
Membrane Switch | Pump Switch - Pump model only |
Unplug and check connector pins (left side is pin 1), read about 10 ohms when activating the button, and OL when not pressing the button: Pin
Compressor
Check temperature of compressor, if very hot, add access valves to refrigeration system and check system pressures. If very low, add very small amount of
If compressor temperature is normal and compressor is drawing high amps, check start relay.
If relay is good and compressor is not overheating but drawing high amps, replace compressor.
The pump switch activates the pump based on pressure to it from water inside the drain hose to the pump inlet. It is normally open. When pressure increases the switch closes, turning on the pump motor until the pressure falls.
The safety switch (the red one) is normally closed and operates at a higher activation pressure than the pump switch. It stops operation of the machine if it opens.
Ice Level Sensor
To operate, the unit must have:
•Power to the controller
•Water sensed
•Call for ice
With power on and Ice Making light on, check sensor connector, if secure and the unit not operating, remove connector and jump the two middle pins at J9 on the controller together. Unit should start. If it does, replace the sensor, if not, replace the controller.
Auger
Comp
May 2011 Page 11