Maytag Washer Error Code 29

Error code 29 on a Maytag washer indicates a sump thermistor failure. The sump thermistor monitors water temperature at the bottom of the machine, and this code is triggered when the control board detects a temperature reading that is abnormally high, abnormally low, or a resistance value that falls outside the expected range. The washer stops operation until the fault is addressed.

It is not recommended to continue running the washer while this code is active. The sump thermistor helps the control board regulate wash temperature, and operating without an accurate temperature signal could result in improper wash conditions. The washer will typically halt the cycle on its own when this code is triggered, which is a protective behavior you should not attempt to bypass.

A reset may temporarily clear the code, but if the underlying problem with the sump thermistor or its wiring has not been corrected, the code will return as soon as the washer attempts to read temperature during the next cycle. A reset is useful for confirming whether the fault is intermittent, but it is not a repair. The thermistor, wiring harness, and connectors should be inspected and tested to resolve the issue permanently.

In many cases, yes. Start by unplugging the washer and inspecting the wiring harness and connectors at the sump thermistor for loose, corroded, or damaged connections. If the connectors are secure and undamaged, use a multimeter to test resistance across the thermistor terminals. A thermistor that reads open circuit or shows clearly abnormal resistance should be replaced, which is a straightforward repair for someone comfortable working with appliance components.

If the issue is a failed sump thermistor, the part itself typically costs in the range of $15 to $50 depending on the specific model. If you hire a technician, total repair costs including labor generally fall in the range of $100 to $200. If the control board is the root cause, costs will be higher, often ranging from $200 to $400 or more for parts and labor.