Whirlpool Thermistor Q

mda1978 · June 8, 2026, 3:19pm

Brand: Whirlpool
Model Number: WZF34X16DW00
Main Symptom: Won’t Stop Running at 0 F…or defrost maybe
What happens & when:

Error Code (if any): None
Parts or tests already tried: I installed a new thermistor and control board
Photos / video link:

I have two Whirlpool appliances that are flaky: a fridge only WRR56X18FW00 and a stand-up freezer WZF34X16DW00. I can’t figure out the difference between two different thermistors. According to another parts website, both appliances may have a WPW10383615 (brass w/ clip) AND/OR a WPW10384183 (plastic w/o clip). The WPW10383615 brass part with the clip is what seems to have come from the factory attached to the evaporator coils of each. I installed a new thermistor WPW10383615 (brass w/ clip) and control board (W11382529) in the freezer, but while the temp setting LED stuff seems to have been fixed, the funker runs constantly despite being 0 F. Thoughts on whether there’s a hidden temp sensor apart from from what’s clipped to the evaporator coil?

Thank you!

Jeffrey_S_APP_Team · June 9, 2026, 2:42pm

Thank you for providing that information. For model WZF34X16DW00, the two thermistors serve different purposes:

WPW10383615 is the evaporator thermistor and should be installed on the evaporator.
WPW10384183 is the cabinet thermistor and monitors the temperature inside the freezer compartment.

To test the cabinet thermistor (WPW10384183), compare the resistance reading to the specifications below:

At room temperature, it should measure approximately 2.7K ohms.
At 0°F, it should measure between 22.1K and 23.5K ohms.

I’ve included the resistance chart for reference. If your readings fall outside these ranges, the thermistor is likely faulty and should be replaced.

You can find the replacement part here:
WPW10384183 Thermistor
https://www.appliancepartspros.com/whirlpool-thermistor-xl-tm-wpw10384183-ap6020677.html

Please let us know what readings you get, and we’ll be happy to help you interpret the results.