03/06/2026
The cause of a “no heat” call was a cheap service switch that can be purchased for less than a buck. I only install the heavy duty version on heating systems that only costs $4 more. Unfortunately the customer had already spent hundreds on other parts before I came and diagnosed the source of the problem. Sometimes spending a little more up front can save a lot in the longrun. If you want to try fixing it yourself first, buy a multimeter and learn how to use it first.