Thanks for your words of wisdom, PDuff and Spannerwrench. I went back to the customer's house and checked all of the wiring connections. I discovered that the heater control board had broken loose from the cabinet and was flopping around during a fast spin. One of the wire connections was so loose that it fell off when I touched it. I secured it with strapping tape because this woman needed her washer up and running pronto. (I can replace the broken mounting bracket later.) I did replace her heating element as well, because it had some suspicious corrosion and the PTC thermistor resistance reading was way off. The unit is working great. She was so happy that she sent me off with a loaf of banana nut bread (as well as a check for parts and labor-senior discount applied).
- certified tech group 51 likes this