Norcold N620 - Common Problems and Solutions; Trouble Shooting

Service Manual 22
Trouble Shooting:
Before using the following Trouble Shooting Chart:
- Make sure that 10.5 VDC min. - 15.4 VDC max.
control voltage is available to the refrigerator.
- Make sure that 108 VAC min. - 132 VAC max. voltage
is available to the refrigerator and to the ice maker.
- Make sure that the water pressure to the ice maker is
15 PSI min. - 125 PSI max.
- Make sure that the refrigerator is at the mid-range or
higher.
- Make sure that the refrigerator is performing correctly
and the freezer is below 32° F.
- Make sure that the ice maker arm is down in the ON
position.
- Remove the cover plate from the front of the ice maker to
get access to the test terminals (See Art01095 and
Art001096).
Common Problems and Solutions:
If the refrigerator is cooling, but there is no ice in the ice bin [4]
(See Art01015):
- Make sure the AC power is connected.
- Make sure the wiring connections are tight.
- Repair or tighten the connections.
- Make sure that the ice maker arm is in the ON position
[2].
- Make sure the water supply is available to the ice maker.
- Restore the water supply if necessary.
- Check the solenoid water valve [2] and inlet filter [4] for
restrictions or failure (See Art 01014).
- Repair or replace if necessary.
- Make sure that excess frost in the freezer is not prevent-
ing the ice maker arm from moving freely.
- Defrost the refrigerator if necessary.
- Make sure the door is sealing correctly.
If the ice yield is low:
- Make sure that the refrigerator is vented correctly.
- Make sure that 10.5 VDC min. - 15.4 VDC max. control
voltage is available to the refrigerator.
- Make sure that 108 VAC min. - 132 VAC max. voltage is
available to the refrigerator and to the ice maker.
- Make sure that there are no restrictions in the water
supply line [5].
- Make sure that the water pressure to the ice maker is 15
PSI min. - 125 PSI max.
- Make sure that the temperature setting of the refrigerator
is at mid-range or lower.
If an excessive amount of water drips on the ice cubes from
the ice maker mold:
- Make sure the water pressure is not higher than 125 PSI
max.
- Check the solenoid water valve and inlet filter for restric-
tions or failure.
- Repair or replace if necessary.
If the ice maker mold overfills with water:
- Replace the solenoid water valve.
If the ice cubes are milky colored or have a taste:
- Make sure that food was not stored in the ice bin.
- Recommend that the consumer have the water supply
inspected for hardness.