Trouble
Shooting
39
12-3-D. CIRCULATION PUMP DEFECT
Symptom
1. Comp. working, but circulation pump does not function and Ice Full is off.
Connect Test Board: Circulation Pump Defect or Over-Freezing.
2. Due to over-freezing, Axle Coupling may be broken.
Cause of Defect
1. Clogging or malfunction of Circulation Pump will prevent rotation.
AS Procedure
1. Check for particle build up in impeller by separating Circulation Pump.
2. Change Axle Coupling and/or Circulation Pump.
3. Please remove the tray motor in order to get to the Axle coupling.
4. Make sure to allow at least 6 hours for the Ice tray to melt.
How to Diagnose
**Defective Circulation Pump will cause the Axle Coupling to break.
Connect Test Board to conduct initial diagnostic.
During Cold water & Ice making operation, Test Board LED 13 or 22 may be off if Environ-
ment Temperature sensor is defective.
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