Nor-lake General Purpose Lab Ref-Fzr User Manual Page 10

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05/07 138708
MAINTENANCE SERVICE AND ANALYSIS GUIDE
MALFUNCTION POSSIBLE CAUSE SOLUTION
Refrigerator does not 1. Refrigerator plugged into a 1. Use another circuit.
run. ground fault interrupt circuit.
2. Temperature control is in the 2. See Temperature Control Section.
OFF position.
3. Fuse blown or tripped circuit 3. Check/replace fuse with a 15A time delay
breaker. fuse. Reset circuit breaker
4. Temperature Control set at 0 4. Adjust Control for proper temperature.
Freezer runs too much 1. Freezer recently dis- 1. 4 hours required for refrigerator cool down.
or too long. connected for a lengthy period.
2. Large amount of product 2. Warm product will cause refrigerator to run
recently stored. more until desired temperature is reached.
3. Doors opened too frequently 3. Open doors less often.
or too long.
4. Refrigerator door may be 4. Refrigerator may not be level.
slightly open.
5. Temperature control set too cold. 5. Reset temperature control.
6. Refrigerator gasket is dirty, worn, 6. Clean or replace gasket.
cracked or poorly fitted.
Vibrating or rattling noise. 1. Refrigerator not level. 1. Re-level the refrigerator as specified in the
INSTALLATION section.
2. Refrigerator is touching the wall. 2. Move the refrigerator away from the wall.
Moisture forms on refrigerator 1. Weather is hot and humid. 1. This is normal.
interior. 2. Door not seating properly. 2. Re-level the refrigerator.
3. Door kept open too long or too 3. Open door less often.
frequently.
Moisture forms on refrigerator 1. Door may not be sealing 1. Re-level the refrigerator.
exterior. properly.
Door will not close. 1. Refrigerator is not level. 1. Re-level the refrigerator.
Light bulb will not turn on. 1. Light bulb burned out. 1. Replace light bulb with a new bulb of the
Same wattage.
2. No electric current reaching the 2. Ensure refrigerator is plugged into power
refrigerator. receptacle.
3. Defective light bulb holder or 3. Contact a service technician.
Light switch.
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