GMC 1976 ZEO 6083 Maintenance Manual page 731

The Norcold seven and one-half cubic foot refrig-
erator will operate either on 12-volts D.C. or 120-
volts A.C . This dual voltage refrigerator
automatically switches from A.C . to D.C . or D.C. to
A.C . When a power supply of at least 90 volts. A.C .
i s present at the refrigerator supply cord, the voltage
selection relay is energized and disconnects the unit
from D.C . operation. When the A.C. power supply
is disconnected, the refrigerator automatically re-
verts to D.C . operation.
SECTION 24D
REFRIGERATOR
Contents of this section are listed below:
GENERAL INFORMATION
REFRIGERATOR 2413- 1
SUBJECT
PAGE N0 .
General Information .. . . . . . . . . . . . . .. . . . . .. . . . . . . .. .. .. .. .. . . .. . . .. . . .. . . .. .. .. . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 2413-1
Norcold Refrigerator Trouble Diagnosis ., ................ .............. .... .... ...... ... . .. . . .... .. .... ... 2413-1
Component Testing . .. .. . . . . .. . . .. .. . . . . . . . . .. .. .. . . .. . . .. .. .. .. .. . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . 2413-2
Refrigerstor Replacement ... . .. . . ........ .. .. .. . . .... ...... .... . . .. .. .. .. .. . ... . ... .... . . .. . . . . .. .. .. .. .. ... . .. .. . 2413-4
Component Removal . . . . . . . . . . . . . . . .. . . .. . . . . . . .. . . .. . . . . . . .. .. .. . . . . . . . . . . . . .. .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 2413-5
Component Installation . .. .. .. .. . . .. .... .. .. .. .. .. .. . ..... .. . ... .. .. ...... .. . ... . . . . . . .. .. .. . . .. .. .. . . . . . . .. .. ... . . 2413-8
Norcold Specifications .. ........ ........ .. .. .... .. .. .... .. .. .. .. .... .. .. .. .. .... ...... .. .... ....... . .. .. .. .... ..... 2413-9
There is a circuit breaker incorporated in the
12-volt circuit of the refrigerator. It is located behind
the kick plate below the refrigerator door . When the
circuit breaker opens a small light will come on be-
side the breaker. The circuit breaker is reset by push-
ing IN on the red button next to the light.
The swing motor type compressor, operates on
A.C . voltage only. An inverter-transformer assembly
inverts 12-volts D.C. to 11 volts A.C ., and then
transforms this voltage to 23 volts A.C. This is then
supplied to the swing motor compressor .
NORCOLD REFRIGERATOR TROUBLE DIAGNOSIS
Problem
Possible Cause Correction
Compressor does not run.
1. Fuse "blown" in living l . Correct electrical problem that
_ area fuse block. caused fuse to "blow" and replace
fuse .
2. Circuit breaker in 2. Correct electrical problem that
refrigerator has "tripped ."
caused circuit breaker to trip and
reset circuit breaker.
3. Faulty electrical
3. Check A.C . and D.C . voltage
source .
source at the point where it
enters the inverter assembly . The
problem may lie in the source and
not in the refrigerator .
4. Defective thermostat 4. Replace thermostat .
5. Defective inverter 5. Replace inverter assembly .
assembly .
6. Open or short circuit
6. Replace swing motor compressor .
in swing motor compressor .