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Thermostat, Furnace, AC not Working- Troubleshooting Bad Tstat Wiring and Blown 24v Fuse

In this HVAC Thermostat Troubleshooting video, I show you how to diagnose bad thermostat wiring possibly resulting in a blown 24v fuse. If the Thermostat is blank or you can't turn on the furnace or air handler then this video is for you. I show you the step-by-step instructions on how to troubleshoot if the problem is in the thermostat face, the thermostat sub-base, the thermostat wiring, the control board terminals, or the 24v sensor wires as well as other tips!

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