134587700 Thermistor for Frigidaire Dryer
What does the 134587700 thermistor do?
This thermistor is a temperature sensor whose electrical resistance changes with temperature. The dryer's control reads that resistance to monitor air temperature and regulate the heating cycle. It is a sensing component only — it does not switch the heater itself.
Common symptoms of a failing thermistor
Incorrect drying temperature (overheating or insufficient heat), unusually long cycles, cycles ending early, or a model-dependent temperature-sensor fault reported by an electronic control. These symptoms overlap with airflow restrictions and heating-circuit faults, so the sensor should not be assumed defective without testing.
How to check the 134587700 thermistor
With the dryer unplugged, disconnect the thermistor and measure its resistance with a multimeter, comparing the reading against the model-specific technical specification. The resistance should change steadily as the sensor warms or cools; an open or shorted reading indicates a failed sensor. No universal resistance value is confirmed for this exact reference — always use the model's own specification.
134587700 technical notes
A thermistor is distinct from a thermostat (a switching device), from a thermal limiter (a one-time cutoff) and from a thermal fuse — these are different components in the same heating circuit and must not be confused during diagnosis. The exact resistance-versus-temperature curve is model-specific and is not confirmed here.
Installation & safety for this thermistor
A small sensor mounted in the airflow path (typically at the blower or duct area, per the model's service data). Handle the connector gently and ensure the sensor sits properly in its mounting.
Unplug the dryer before servicing, and let the heater and duct area cool before touching components.
134587700 error codes
Model-dependent related codes: several Frigidaire electronic dryers report a temperature-sensor (thermistor) fault with a dedicated code, but the exact code varies by platform and is not confirmed here for every compatible model — verify the model's technical sheet. An open or shorted sensor reading is the underlying condition such codes describe; wiring and connectors can produce the same fault.
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