Lock Assembly; Oven Sensor And Door Switch Test - GE PT920 Technical Service Manual

Oven Sensor and Door Switch Test

Note: See

Lock Assembly

1. Remove power from oven.
2. Make resistance measurement from side of sensor and lock switch connector with exposed terminals.
3. The resistance measurements are made on the logic board at the connector listed on the chart below.
4. If abnormal reading is observed, wiggle leads at disconnect block. If any variation occurs, replace.
Models Circuit
PT920
and Oven Sensor
PT960
Upper Oven
Door Latched
Door Unlatched
PT960
Lower Oven Oven Sensor
Only
Door Latched
Door Unlatched
Single and Upper Oven
DOOR
UNLOCKED
BAKE FAD BAKE FAD
THERMAL THERMAL
SWITCH SWITCH
MEAT PROBE
30K-50K Ω @
ROOM TEMP.
1 2 3 4
J3
for door switch function explanation.
Resistance Measurement Chart
Connector
J3
J3
J3
J2
J2
J2
DOOR
CLOSED
DOOR
LOCKED
OVEN
SENSOR
5 6 7 8 9 10
Terminals
9 to 10
5 to 6
4 to 6
4 to 6
5 to 6
9 to 10
4 to 5
3 to 5
3 to 5
4 to 5
Lower Oven
DOOR
UNLOCKED
BAKE FAD BAKE FAD
THERMAL THERMAL DOOR
LOCKED
SWITCH SWITCH
MEAT PROBE
30K-50K Ω @
ROOM TEMP.
1 2 3 4
J2
– 38 –
Ohms
1091 Ω @ Rm. Temp.
1654 Ω @ 350°F
2634 Ω @ 865°F
0 Ω
open
0 Ω
open
1091 Ω @ Rm. Temp.
1654 Ω @ 350°F
2634 Ω @ 865°F
0 Ω
open
0 Ω
open
DOOR
CLOSED
OVEN
SENSOR
5 6 7 8 9 10 11