GE JB735SPSS oven temperature sensor
Part: WB21X22134
Test sensor resistance and match the full model revision before replacing for temperature faults.
$20-$45
Check price
The GE JB735SPSS is an electric range, so troubleshoot oven heat differently from a gas model. There is no bake igniter or gas valve to price first. Start with power, elements, the oven temperature sensor, and the control relays.
Use the full model tag from the frame, not just JB735SPSS from the sales label. GE range parts vary by production revision, and a close-looking part can have the wrong connector or mounting bracket.
Symptom Map
| Symptom | Likely area |
|---|---|
| Oven will not heat | Breaker leg, bake element, control relay |
| Broil works but bake does not | Bake element or bake relay |
| Temperature swings | Oven sensor, calibration, control board |
| Uneven baking | Rack position, preheat, convection fan, sensor |
| Surface burner stuck on high | Infinite switch or radiant element limiter |
| Display dead | Power supply, terminal block, control board fuse |
Fix Order
- Confirm the range has both legs of 240V power. A tripped half-breaker can leave the display working while bake or broil fails.
- Turn power off and inspect the bake element for cracks, blisters, or a burned spot.
- If broil works but bake does not, test the bake element for continuity before replacing the electronic control.
- If temperatures swing high or low, test the oven temperature sensor at room temperature and inspect its connector.
- For uneven baking, verify rack position, allow full preheat, and make sure the convection fan path is not blocked.
- For a surface element stuck on high, check the infinite switch and the element limiter wiring.
- Price a control board only after power, elements, sensor, and wiring checks are complete.
Parts Often Needed
| Part | When it makes sense |
|---|---|
| Oven temperature sensor | Temperature swings, sensor fault, bad resistance reading |
| Bake element | No bake heat, visible element damage, open continuity |
| Radiant surface element | Dead or cycling burner after switch tests |
| Infinite switch | Burner stuck on high or not responding to knob changes |
| Control board | Relay output missing after loads and wiring test good |
When to Stop and Call Service
Stop if the terminal block is burned, the breaker trips repeatedly, wiring insulation is melted, or you are not comfortable testing live 240V circuits. A failed element is straightforward. A bad supply leg, relay output, or terminal block can create fire risk if handled casually.