Viking VCSB360 Service Notebook page 32

PROBLEM
Compressor kicks out on
overload (continued)
Freezer compartment too
warm.
POSSIBLE CAUSE
Air circulation on high side:
a. Condenser or grille
restricted by lint
b. Condenser fan motor
Running or running
Slowly.
c. Condenser fan motor
Top not in place.
Relay and / or overload
Motor windings shorted
Over charge
Thermostat:
a. Set too warm
b. Sensing tube not prop-
erly positioned
c. Out of calibration or
Not functioning
Interior air circulation
a. Fan
b. Restriction in ducts
Abnormal usage
Bad door seal or door
not closing.
TEST PROCEDURE-ACTION
Clean condenser and air passage with vacuum
cleaner.
Disconnect fan motor leads and check separ-
ately. Replace motor if defective.
Put condenser fan motor top in place.
Replace with parts known to be good.
Check windings with ohmmeter. See wiring
Diagram for resistance values. Replace
Compressor if motor is defective.
Check for high wattage and frosted suction
Line. Evacuate and recharge with correct
charge.
Turn knob to higher setting.
See that sensing tube is properly positioned.
Check thermostat for cut-in and cut-out
temperatures. Replace if necessary.
Check evaporator fan. Replace if defective.
Check for and remove obstruction in ducts.
Instruct customer.
Adjust door to obtain proper seal.
Instruct customer to make sure door closes
completely.
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