Tim B for Model Number MEDE200XW1 I am having issues with no heat. i have check all the parts including the heater coil. i have replaced the fuse and the highlimit and other sensor on the heater coil housing just in case i was getting a false reading. Still no heat, every tech tells me that it is probably the board then, however when i take it out and look for a hot spot on the board it looks new with no signs of burning of the element relay. I found the tech book and checked the error codes and it said the moisture sensor is open. I was told that the moisture sensors never go out and that it is probably the sensor wiring. My question is will a faulty sensor wiring with the diodes not allow the heater elements to come on? I assume the moisture level sensor does control the heater element since it turns tells the dryer to turn off. I don't just want to throw money at the problem.
Answer Tim B, The sensor wiring would be the most likely cause for the sensor to read open. This could cause the unit to not heat when on the sensor dry but should still heat on the time dry. There is another way that you could test the unit to see where power is being lost. There are 2 components other than the thermostats which would cause the heating element not to work. First is the motor and second the PCB. The best option is to disconnect the power to the unit and access the heating element. Disconnect one wire that is going to the heating element, preferably the one on the thermostat side. Plug the unit back up and using a multi-meter you will want to turn the dryer on and test for 120 vac at the terminal on the heater where the wire was disconnected. What this will do is eliminate the heater element itself and the motor. If there is 120 vac at this point then you know the heater is good and the motor is good because the other 120 vac coming through the thermostats is the timer side of the circuit. If there is not 120 vac at that point then you will want to test the other terminal on the heater and check for 120 vac. If there is not 120 vac then the motor would be bad. Read More... Answered by AppliancePartsPros.com | Tuesday, August 16, 2016