Owners Guide

16
SEMIANNUALLY
Check the condenser coil, fan assembly, compressor, and transformer for accumulaon of dirt or dust. If nec-
essary clean with vacuum cleaner. For removal of stainless steel back shield to gain access to the mechanical
assembly compartment see par. 3-7c and g. 1-2.
3-5 Troubleshoong. The following secon gives you the procedure for troubleshoong to idenfy the
cause of problems that might occur in refrigerator operaon. In each case, the symptom is followed by a proce-
dure for eliminang the problem.
115 VOLT (60/50 Hz) POWER GRID SYSTEM
Symptom: Refrigerator does not cool or operate.
Remedy: Is the 115V plug in a 115 VAC outlet? If not, plug it in.
Is the circuit breaker for the 115V outlet open? If so, reset the circuit breaker.
Is the thermostat dial turned to an operaonal posion (not OFF)? If not, start with a seng of
4 and turn to the seng you want. If the thermostat sll does not start the refrigerator, check
the thermostat for connuity: turn the dial fully counter-clockwise and check the resistance
between the two electrical connectors of the thermostat. It should be an open circuit. Turn
the dial clockwise unl you hear the click of the contacts inside. From this point on, resistance
between the connectors should be approximately zero ohms. If the thermostat checks out
bad, see par. 3-11 for replacement procedure.
If the system sll does not start, with a new thermostat if the old one failed the connuity test,
substute a new starter relay. Follow par. 3-7 through step g. Then remove the terminal
connectors from the relay terminals, pull the relay o the pins holding it to the compressor.
Install a new relay onto the compressor plug and reverse the procedure to connect the system
for running.
Symptom: Refrigerator operates, but does not cool.
Remedy: Has the refrigerator been turned on for at least an hour?
Is the thermostat set to a low enough temperature. If not, try a lower seng.
If the refrigerator sll does not cool open the door and touch the cold plate (evaporator). If the
cold plate has frost and is cold to the touch, see par. 3-11, for replacing the thermostat.
If the cold plate is warm, return the refrigerator to depot for further checks and/or replace-
ment.
Symptom: Arcles in the refrigerator and/or freezer secon are to warm.
Remedy: Has the refrigerator been turned on for at least an hour?
Is the thermostat set to a low enough temperature? If not , try a higher seng.
If the refrigerator sll does not cool, open the door and touch the cold plate (evaporator). If the
cold plate has frost and is cold to the touch, see par. 3-11, for replacing the thermostat.
If the cold plate is warm, return the refrigerator to depot for further checks and/or replace-
ment.
Symptom: Arcles in the refrigerator and freezer secon are to cold.
Remedy: Has the refrigerator been on for at least 1 hour?
Is the thermostat seng to high? If so, turn the dial to a lower seng, and let the refrigerator
run for at least two hours to check the temperature. If it is sll to cold, reduce seng to a
lower number.
If changing the thermostat seng does not warm the refrigerator, see par. 3-11, for replace-
ment of the thermostat.