Skip to main content
Error code reference
Maytag Dryer Error Code 12
Upper Dryer Thermistor Open Sensed: temperature is low with an expected increase but no increase occurring after 3 minutes.
SourceMaytag Neptune DC Dryer - Service Manualp. 14
Diagnostic procedure
The full 12 procedure
Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.
MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
Check for low ambient temperature in room (below 50°F/10°C), check door vent seals, and check for loose or open wire terminals on steamer circuit.
SourceMaytag Neptune DC Dryer - Service Manualp. 14
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
Unlock 12 procedure $9.95
Or subscribe: $29/month for all codes plus Max diagnostics, with 70 Max messages a day. Plus applicable tax.
Where this code is documented
7 manuals in the MyPros+ library document this code for Maytag dryer.
Models covered by the manuals that document this code
75,000+ service documents · 20,000+ error codes · 100+ brands
Get Started$29/month · Cancel anytime · Or $9.95 3-day pass · Plus applicable tax