Viking VUAR140 Troubleshooting Guide download pdf (Page 13)

PROBLEM POSSIBLE CAUSE TEST PROCEDURE-TEST

Door will not close or will Gasket binding Adjust hinges, add shims if necessary.

Not seal Lubricate face of gasket on hinge side

With parawax.

Door warped Loosen retainer screws and rack door

To fit cabinet.

Cabinet racked Level cabinet; make sure cabinet is

setting solidly at all four corners.

THE MOTORIZED AIR DOOR

The electronic control board, located inside the refrigerator control cover, controls the operation of the

motorized air door, the thermistor and the evaporator fan motor.

120 volts AC is supplied to the electronic control board through the BK wire and operates the circuit as

follows:

1. To open the baffle: 120 volts AC is supplied to the baffle motor through the Y/R wire and

switch SW1 (Fig.31-C). The motor rotates 270* from the “closed” position (Fig.31-A) to the

“open” position where it contacts SW1 which opens and parks the motor.

2. To close the baffle: 120 volts AC is supplied to the baffle motor through the W/BR wire and

Switch SW2 (Fig.31-C). The motor rotates 90* from the “open” position (Fig.31-B) to the

“closed” position where it contacts SW2 which opens and parks the motor.

2. 120 volts AC is supplied through the OR/W wire to the electronic control board which

energizes the evaporator fan motor and supplies low voltage to the thermistor.

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Viking VUAR140 Troubleshooting Guide Page 13