10
Troubleshooting
GENERAL TROUBLESHOOTING
Problems
Possible Causes
Solutions
Strange noise under the bottom
shelf.
Fan blade broken.
Power off and fix the blade.
Non-refrigerating in spite of normal
operation.
Unit off.
Power on.
Melting process.
Stop melting.
Refrigerant leaking.
Patch the leak and refill refrigerant.
Unit failure.
Call Omcan.
Weak air from air curtain, and
higher cabinet temperature.
Evaporator blocked by frost.
Increase melting frequency.
Inside fan damaged.
Replace the fan.
Too low set point of temperature
controller.
Adjust the set point.
Vent blocked by storage.
Remove the storage.
Normal air curtain, but higher
cabinet temperature.
Insufficient refrigerant.
Refill the refrigerant.
Too high set point of temperature
controller.
Adjust the set point for the
temperature controller.
The wind curtain disturbed by
strong air flow.
Remove the disturbing factors.
Ambient temperature or humidity
beyond standards.
Improve the conditions.
Melting water overflown.
Heating pipe for melting water
damaged.
Replace the heating pipe.
Water-level controller failure.
Replace the water-level controller.
Ambient temperature or humidity
beyond standards.
Improve the conditions.
Normal air curtain, but periodical
fluctuation of cabinet temperature.
Condenser contaminated.
Clean the condenser.
Poor venting of the unit.
Improve the venting conditions.
Heat protection of compressor
failure.
Replace the heat protection.
Capillary is blocked by ice.
Replace the drying filter.
Temperature controller failure.
Replace the temperature controller.
NOTE
Following occurrences are not problems:
•
The murmur of water is heard when the refrigerator is working. It is a normal occurrence as the coolant is
circulating in the system.
•
When the weather is damp, condensation might be found on the outside of the refrigerator. It is caused by
high humidity. Simply use cloth to wipe it off.
