Kaltis ULTRA LOW TEMPERATURE FREEZER User Manual - 8. Troubleshooting
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8. Troubleshooting
CAUTION!
Troubleshooting should only be performed by trained personnel.
If the unit malfunctions, check out the following before calling for service.
The chamber is not cooled at all
1. The circuit breaker of power source is active.
2. The voltage is too low. (In this case, call an electrician.)
3. The power switch is not ON.
4. Large amount of articles (load) is stored in the chamber at one time.
The cooling is poor.
1. The ambient temperature is too high.
2. The latch of inner door is not closed completely. The outer door is not closed
firmly. (The frost or ice between the cabinet and door gasket possibly prevents
door seal.)
3. The air intake grill is blocked.
4. The condenser filter is clogged.
5. The operating temperature setpoint is not inputted properly.
6. The freezer is not away from the direct sunlight.
7. There is any heating source near the freezer.
8. A rubber cap and insulation for the access port are not set correctly.
9. Too many unfrozen articles is stored in the freezer compartment.
Noise
1. The freezer is not installed on a sturdy floor.
2. The freezer is not leveled with the leveling feet.
3. There is anything touching the frame.
4. The freezer is in the status immediately after start up.
The unit sometimes causes a noise when the chamber temperature is high due to a
large load. The noise gets less and less accompanying with the cooling of the
chamber.