Maytag model MDE9206AYW will not heat. Checked coil, fuses and limits and am now trying to check cycling thermister. Can you tell me how? also do you have any suggestions. suspect dryer went out during...
My generic wiring diagram doesn't show this dryer uses a thermistor, only thermostats. The difference is a thermistor has to have an electronic control to interpret the values the thermistor is sending. A thermostat is mechanical and only open or closes at a preengineered temperature. You would need to check the ohm readings of a thermistor at different temperatures to test it, but you only need to know continuity or no continuity to test a thermostat. First make sure you have 240 volts to the dryer, the heater is the only part that needs 240 to run. It's possible for only half of the breaker to trip and give the dryer only 120 volts, in this case everything but the heater would run. If you've got 240 volts, to the dryer, unplug it, then check for continuity between the 2 terminals of the 2 thermal fuses, cycling thermostat, and hi limit thermostat and heater. Remember you must disconnect one wire before testing to prevent incorrect readings. If it still runs, just no heat, the 2 thermal fuses should be ok, but check them anyways. If they all test ok you'll need to check the temp selector switch. You'll need the wiring diagram to show which terminals to check at each heat setting. If that checks out you'll need to move to the timer, again you'll need the diagram. If the timer checks, the only thing left is the centifugal switch in the motor, and the only way to check that is to test it with the motor running.
Jul 18, 2008 |