Viking DMOR206SS Service Manual page 26

DMOR206SS
PROCEDURE
LETTER
M HOOD FAN MOTOR TEST
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. If the motor does not turn, touch the Vent button once (set hood fan motor power "HIGH") and check
voltage between pins "1" and "2" (Blue and Black wires) of the 6 pin connector. If 120 Volts appear
and the hood capacitor is good, replace the hood fan assembly. If 120 Volts does not appear, check
the motor circuit. The resistance values of motor terminals are as follows:
5. Reconnect all leads removed from components during testing.
6. Re-install the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
N DAMPER MOTOR TEST
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. When the power cord is plugged into the wall receptacle and 120 volts A.C. is supplied to the
damper motor, the motor operates until the damper is opened and the damper switch closes. Then
the damper motor stops operation.
5. If the damper motor does not operate, check for A.C. voltage with a voltmeter at the motor.
6. Disconnect the power cord from the wall receptacle.
7. Disconnect the wire leads of motor and connect the meter leads to the wire leads of main wire
harness.
8. Re-connect the power cord into the wall receptacle.
If 120 volts A.C. is indicated at the wire leads, replace the motor and if 120 volts A.C. is not indicated,
check the wire harness and control unit.
O HEATING ELEMENT TEST
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Make sure the heating element is fully cooled and test as follows;
a. Disconnect wire leads and measure the resistance with an ohmmeter. On the R x 1 scale, the
resistance between the heating element terminals should be approximately 10
b. Disconnect wire leads and measure the insulation resistance with 500V - 100M ohm insulation
resistance meter. The insulation resistance between heating element terminal and cavity should be
more than 0.5M
5. Reconnect all leads removed from components during testing.
6. Re-install the outer case (cabinet).
7. Reconnect the power supply cord after the outer case is installed.
8. Run the oven and check all functions.
TEST PROCEDURES
YLW
4
HOOD
FAN
CAPACITOR
45 20
5
RED
Ω
.
COMPONENT TEST
BLU
1
BLU (1)
BLK (2)
BLU (1)
32
BLK (2)
WHT (3) AND
2
BLK
3
WHT
26
Resistance between;
AND YLW (4) = 0 ohm (Shorted)
AND YLW (4) = 32 ohm
AND BLK (2) = 32 ohm
AND WHT (3) = 20 ohm
RED (5) = 45 ohm
BLU BLK WHT
1
6-PIN CONNECTOR
OF HOOD FAN MOTOR
4
YLW RED
Ω
.
2 3
5