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Maintenance service and analysis guide – Nor-Lake Large Capacity Incubator User Manual

Page 6

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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