Customer Questions and Answers for Thermistor by Whirlpool

Scoutman, Basically Your description indicates one of two possible issues, There is not enough voltage to the heater element, This reduces the amount of heat produced, and the thermostats won't cycle. A shorted eelement or wire to the element, this would allow the voltage to circulate through the circuit, and because of the short to chassis ground, the heater element, will not cycle off when the temperature is reached and the thermostat opens. You'll need to check and make sure you have 220 to 240 VAC across the terminals of the heater element when the dryer is heating. Voltage needs to be a minimum of 210 VAC, or the dryer will not heat properly. Also check and make sure he line cord and terminal block wiring is correct, and tight and 220 to 240 VAC across the outside terminals of the block. Good Luck and Thanks