Maytag · Dryer Moderate
F22 — Outlet Thermistor Fault
The exhaust outlet thermistor is reading out of range (open or shorted). The control cannot regulate drying temperature safely and will stop or fail to start.
- Keep using it?
- Yes, with caution
- DIY difficulty
- Moderate
- Verified against
- maytag.com ↗
How to fix it
- Unplug the dryer and access the blower housing where the outlet thermistor mounts.
- Disconnect the thermistor and measure resistance — should read about 10 kΩ at 77°F (25°C).
- If open, shorted, or far off spec, replace the thermistor.
- Inspect the harness from thermistor back to the ACU for chafe or loose pins.
- Clean the entire vent path back to the wall hood — a clogged vent often kills thermistors.
- Run a heated cycle and confirm the code does not return.
Why it happens
Typical signs: F22 displayed · Dryer stops mid-cycle · No heat or runaway heat complaint preceding the code · Long dry times
- Failed exhaust thermistor Open winding or drift out of spec is the most common cause.
- Loose or corroded thermistor wiring Harness connector at thermistor or ACU is loose.
- Clogged exhaust vent causing extreme heat Overheated thermistor has been damaged.
- Failed main control board (ACU) Less common — input circuit failed.
Parts you may need
If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.
- Maytag dryer outlet thermistor Common replacementAmazon →
More Maytag dryer codes
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: maytag.com.