How do I fix Frigidaire Gas Oven Thermostat Replacement - Signs & How-To?

Follow the step-by-step diagnosis below. The most likely fix is identified by checking power, sensor resistance, and control-board signals in order — using a multimeter and the part numbers documented in the parts reference table.

Can I keep running the equipment with this fault active?

Generally no. Faults on Appliance units are emitted when a sensor, safety, or control circuit is outside its operating envelope. Running through an active fault risks compressor, heater, or control-board damage. Diagnose and clear the fault first.

What part is most commonly replaced for Frigidaire Gas Oven Thermostat Replacement - Signs & How-To?

The most frequently replaced parts for Frigidaire Gas Oven Thermostat Replacement - Signs & How-To are listed in the Parts Reference section of this guide with OEM part numbers and typical price ranges. Check the table for direct replacements.

Is Frigidaire Gas Oven Thermostat Replacement - Signs & How-To a DIY repair or do I need a technician?

Sensor swaps, fan motor replacements, and condenser cleaning are typical DIY-level repairs. Anything involving refrigerant, gas, or high-voltage (>240V) work requires a licensed technician for both safety and code-compliance reasons.

Frigidaire Gas Oven Thermostat Replacement - Signs & How-To

Q: What does Frigidaire Gas Oven Thermostat Replacement - Signs & How-To mean?

Oven won't heat, overheats, or runs 50°F off target. Replacing the oven temperature sensor or mechanical thermostat restores accurate temperature control.

Frigidaire Gas Oven Thermostat Replacement — What This Part Does

The oven temperature sensor (thermistor) monitors cavity temperature and sends resistance readings to the control board or mechanical thermostat to regulate gas flow and maintain your set temperature. On older Frigidaire gas ranges, a separate mechanical temperature control thermostat works with the sensor to cycle the gas valve on and off. These components fail from heat cycling, corrosion at the harness connector, or age-related resistance drift, causing the oven to underheat, overheat, or fluctuate wildly.

The sensor typically mounts at the rear oven wall behind the range and connects to the control circuit with a two-wire harness. When resistance drifts out of specification (around 1,080 ohms at room temperature for most models, though some Frigidaire sensors measure approximately 540 ohms), the control system reads incorrect temperature data and cannot maintain accurate heat. Replacing the sensor or thermostat restores proper feedback and accurate baking temperatures.

Jump to Replacement Steps

Signs It Needs Replacing

Oven won’t reach set temperature Oven stays 50 to 100 degrees below your target even after a full preheat cycle.
Oven overheats or burns food Baked goods come out scorched on top or bottom, indicating the oven ran hotter than the display setting.
Wide temperature swings during baking The oven cycles between too hot and too cold instead of holding steady heat.
Preheat takes much longer than normal The oven runs for 20 to 30 minutes without signaling ready, or never reaches preheat.
Inaccurate oven thermometer readings A standalone oven thermometer reads 50 degrees or more different from the control panel setting.
Intermittent heating or random shutoffs The burner lights but shuts off mid-cycle, or the oven loses heat without warning during use.

How to Replace It

Disconnect electrical power at the circuit breaker or unplug the range cord from the wall outlet.
Pull the range forward away from the wall to access the rear panel.
Remove the screws securing the rear access panel and set the panel aside.
Locate the oven temperature sensor protruding through the rear oven wall, remove the mounting screw holding the sensor bracket, and gently pull the sensor rearward to expose the wire harness connector.
Disconnect the two-wire harness connector from the sensor and set the old sensor aside.
Test the old sensor resistance with a multimeter at room temperature (approximately 540 ohms or 1,080 ohms depending on your model) to confirm failure before installing the new part.
Insert the new sensor through the rear oven wall, secure the mounting bracket with the retaining screw, and reconnect the wire harness connector.
Reinstall the rear access panel and push the range back into position.
Restore electrical power, set the oven to 350°F, and verify the oven preheats and maintains temperature accurately with an oven thermometer.

The Part You Need

Part	Notes
Frigidaire oven temperature sensor	Amazon \| Common part numbers include 316217008, 316490001, and 5304526310. Locate your exact model and serial number on the metal plate inside the oven door frame or on the front frame below the door to match the correct sensor for your range.
Range temperature control thermostat (if equipped)	Amazon \| Some older Frigidaire gas ranges use a separate mechanical thermostat in the control circuit. Check your model’s wiring diagram or parts list to confirm which component controls oven temperature.

If this part is failing you may also see one of these codes:

When to Call a Pro

If you smell gas at any point during this repair, stop work immediately, shut off the gas supply valve behind or below the range, ventilate the area, and call a qualified gas appliance technician. If the new sensor tests within specification but the oven still will not heat correctly, the issue may be in the gas valve, pressure regulator, control board, or wiring harness, and a technician with a multimeter and gas pressure gauge should diagnose the control circuit and gas delivery system. Always call a pro if you are uncomfortable working around gas connections or 240-volt wiring. For gas line, burner, or igniter work, or if you ever smell gas, stop and call a licensed technician.