Customer Questions and Answers for Dryer Timer Control by Whirlpool

Rob, If the timer was in the on position and you are testing red to black you should have 240 vac. If not then test from black to white on the timer for 120 vac. If there is 120 vac present then test the thermostats for continuity. If they have continuity then they are good. Also test the thermal fuse for continuity. If this checks ok then test the heater for continuity and check at the heater by disconnecting 1 leg and testing the disconnected leg for 120 vac and the connected leg for 120 vac both to ground. If there is voltage to ground on both legs then the issue will be the heater. If there is not then trace back to the point of origin for the wire that does not have 120 vac and that would be the part to replace.