Henri K. for Model Number Maytag MER6755AAW Symptom: low heat in baking oven. Checked already heating element (20.9 Ohms). Still to check temperature sensor (1100 Ohms @ room temp). If that does not show anything wrong, it must be the control assembly. 1) What range of resistance does the temperature sensor have (for example how much is it at 450°F? 2) In case I replace the control assembly, do I need to replace the OVERLAY as well? I note that the overlay of my current unit is pretty attached to the control assembly plastic holder, and it may break if I try to peel it off. 3) I am inclined to re-mount my existing control assembly and partically insert the connectors to the relays (RED. YELLO, WHITE, BLUE and BLACK (the others will be fully inserted). I hope to double check the application of power (have a good DMM) to the lower bake element. Any comments? 4) It was very difficult to disconnect the large connectors to the control assembly: it only worked when I took it out and used a screw driver to pry them off. Is this normal? Thanks! Henri.
Answer Hello Henri, The normal testing procedure for the oven temperature sensor is at 70°F. It should read 1100O ±5O. While testing the sensor, you should tap on it in case there is an intermittent connection. There are some scales that show resistances at different temperatures, but this is dangerous to test it at these temperatures since the whole body gets very hot. The overlay can be carefully peeled off using a butter knife to apply even pressure so it doesn't tear or separate. The wires are made in a locking fashion to prevent any wires from coming off and causing an electrical shock hazard during shipment. This is not only normal but necessary. Read More... Answered by AppliancePartsPros.com | Friday, November 23, 2012