How do I fix Kenmore Dryer Flame Sensor 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 Kenmore Dryer Flame Sensor Replacement - Signs & How-To?

The most frequently replaced parts for Kenmore Dryer Flame Sensor 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 Kenmore Dryer Flame Sensor 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.

Kenmore Dryer Flame Sensor Replacement - Signs & How-To

Q: What does Kenmore Dryer Flame Sensor Replacement - Signs & How-To mean?

Burner lights then shuts off, won't ignite, or cycles erratically. Replacing the failed flame sensor restores proper gas-burner operation.

Kenmore Dryer Flame Sensor Replacement — What This Part Does

The flame sensor (also called a radiant flame sensor) mounts on the burner funnel near the gas valve on Whirlpool-built Kenmore gas dryers. Its job is to prove heat is present and allow the burner to stay lit. When working correctly, the sensor has continuity when cool and opens when heated by the flame. This safety switch turns off gas if the burner flame fails to ignite or drops unexpectedly.

The sensor fails when its internal contacts break or lose continuity, or when it becomes contaminated or overheated at the burner area. A bad sensor can also be misdiagnosed if the real problem is a weak igniter, bad gas-valve coil, restricted airflow, or wiring damage elsewhere in the burner system.

Jump to Replacement Steps

Signs It Needs Replacing

Burner lights but flame goes out too soon The flame ignites for a few seconds then drops, and the dryer cycles without heat.
Dryer won’t ignite at all You hear clicking or see the igniter glow, but the burner never lights.
Erratic or intermittent heat The flame comes and goes randomly during the cycle instead of staying steady.
No continuity when tested cold A multimeter shows the sensor is open (no continuity) when it should be closed at room temperature.
Visible damage or soot on the sensor The sensor element or mounting area shows burn marks, cracks, or heavy contamination.
Clothes stay damp after full cycle The drum tumbles but no heat is produced because the burner never completes its ignition sequence.

How to Replace It

Unplug the dryer from the wall outlet and turn off the gas supply valve at the dryer or main line.
Remove the lint-screen housing screws, then slide a putty knife under the top panel near the corners to release the spring clips and lift the top.
Disconnect the door-switch wire harness, then remove the screws securing the front panel and lift it away.
Note the drive-belt path around the drum and idler pulley, then release tension and slip the belt off to remove the drum (if needed for full burner access).
Locate the flame sensor mounted on the burner funnel near the gas valve, disconnect its two wire terminals, and test it with a multimeter for continuity (no continuity when cold means the sensor is bad).
Remove the single screw holding the sensor to the burner funnel, slide the old sensor out of its bracket or slot, and insert the new sensor in the same position.
Reconnect the sensor wires to the terminals, then reinstall the drum (routing the belt correctly around the drum, idler, and motor pulley) and secure the front panel and top.
Restore the gas supply and plug in the dryer, then run a timed-dry cycle to verify the burner lights and stays on until the thermostat cycles it off.
Check for gas leaks at all connections using soapy water or a leak detector before returning the dryer to full service.

The Part You Need

Part	Notes
Flame sensor / radiant flame sensor	Amazon \| Common part numbers WP338906, 338906, or ER338906 for Whirlpool-built Kenmore gas dryers. Check the model and serial plate inside the door opening or on the rear panel to confirm fitment before ordering.

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

When to Call a Pro

Gas-appliance burner work is best left to a qualified technician if you are not comfortable working with gas lines, testing electrical continuity, or disassembling the drum and belt system. If you replace the sensor and the dryer still won’t heat or the flame behaves erratically, the issue may be a failing igniter, bad gas-valve coils, blocked venting, or a wiring problem elsewhere in the burner circuit. A pro can test gas pressure, check all igniters and coils, verify proper airflow, and diagnose the full burner sequence safely. For gas line, burner, or igniter work, or if you ever smell gas, stop and call a licensed technician.