Viking FBCI 1150G Service Manual page 24

(6) Evaporator Fan Runs
(7) Voltage at Motor?
(7a) Find Voltage Interruption
(8) Fan Blade Obstructed?
(9) Fan Motor Defective
(10) Condenser Fan?
(11) Voltage at Motor?
(12) Fan Blade Obstructed
(13) Fan Motor Obstructed
(14) Compressor Runs?
(15) Power to Compressor?
(16) Replace Start
Components
(17) Check Compressor
(18) Replace Compressor
Page24
15" & 24" Series
Technical Services Manual
Ensure the evaporator fan is running, see #2 on page 22.
Check for the proper voltage at the motor. Voltage should be ap-
proximately 115V.
Determine where voltage is being interrupted and correct. See wir-
ing diagram for circuitry.
Ensure the fan blade is not obstructed.
Replace the fan motor.
Check if the condenser fan is operating, see #4 on page 22.
Check for the proper voltage at the motor. Voltage should be ap-
proximately 115V.
Ensure the fan blade is not obstructed.
Ensure the fan blade is not obstructed.
LED Snowflake must be illuminated for compressor to operate.
Using a clamp on style amp probe, determine if the compressor is
drawing current and record. If compressor is running go to #19.
Check to ensure power is at the black wires leading to the over-
load (115 V nominal). If no power, find where the voltage is being
interrupted and repair.
Before replacing, go to #17 to ensure compressor quality. Once
compressor checks okay, replace overload and relay.
Using Multi-meter, check compressor winding(s). For all models,
the resistance should be 20.9 ohms from common to start, and 5.5
to the run windings.
Replace compressor if compressor windings are faulty. Always fol-
low established industry practices and applicable local, state and
federal laws regarding refrigerant handling.
SMR-0014