What is the resistance reading of thermistor control #ap3866842?
Mine is reading 48k. All my other switches test OK
Answer Hello Mark. The control thermistor on your dryer should have a room temperature resistance reading of approximately 50K ohms. If not then the thermistor is faulty and would need to be replaced.
My dryer no longer heats up. I have done some research, and some diagnosis based on the code E5B. My voltage at the block is 240, my voltage at the heating element is the same. I tested the Thermistor next, which reads approx. 15K Ohms at room temperature, indicating that it would need replacement. Logic tells me that if the heating element has 240 volts, that it should heat, unless it's bad. I would think that if the thermistor were bad, there would be no voltage at the element. Is this not correct? I am trying to determine whether I need the thermistor, or the element.
Answer Hello Steve. That is correct. If there is 240 volts there, it should heat. Also, test the element for continuity. It should read closed. If open, it is bad. You can test this with a multi-meter TJMA-DMT3. Here is a link on how to use a multi-meter. http://forum.appliancepartspros.com/oven-repair-including-ranges-cooktops/4810-how-check-continuity-ohmmeter.html
The dryer does not want to put out any heat it takes for ever to dry anything.
Answer Tom, Have you disconnected the exhaust vent and checked the vent pipe and vent hood for clogs, obstructions, kinks, twists, etc. You also need to make sure you have 220 - 240 VAC at the terminal block on the back of the dryer. The hi limit thermostat will reset once the dryer temp has dropped to acceptable levels, but it could be weak, especially if you've been operating with a clogged vent for an extended period. and the control thermistor should register 50K ohms across the terminals at room temp.