26
R-1880LS/LST
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
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.
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.
9. Run the oven and check all functions.
N DAMPER MOTOR TEST
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 10Ω.
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 0.5MΩ.
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.
32
2045
HOOD
FAN
CAPACITOR
YLW
RED
BLU
BLK
1
2
3
WHT
4
5
Resistance between;
BLU (1) AND YLW (4) = 0 ohm (Shorted)
BLK (2) AND YLW (4) = 32 ohm
BLU (1) AND BLK (2) = 32 ohm
BLK (2) AND WHT (3) = 20 ohm
WHT (3) AND RED (5) = 45 ohm
1 2 3
4 5
BLU BLK WHT
YLW RED
6-PINCONNECTOR
OF HOOD FAN MOTOR
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