Maintenance service and analysis guide – Nor-Lake Large Capacity Incubator User Manual
Page 6
6
7/10 Rev. C 131783
MAINTENANCE SERVICE AND ANALYSIS GUIDE
MALFUNCTION
POSSIBLE CAUSE
SOLUTION
No power to optional
1. Internal circuit breaker tripped
1. Reset circuit breaker
duplex receptacle
2. Wiring incorrect
2. Check wiring against the diagram
Heater inoperative
1. High limit thermostat tripped
1. Manually reset thermostat
2. Wiring incorrect
2. Check wiring against diagram
No power to cabinet
1. Service cord unplugged
1. Plug in service cord
2. Circuit breaker supplying
2. Determine reason and correct
main electrical receptacle tripped
3. Wiring incorrect
3. Check wiring against diagram
4. Main cabinet power switch off
4. Turn on power switch
Objectionable noise
1. Vibrating fan blade
1. Replace fan blade
2. Worn fan motor bearings
2. Replace fan motor
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