Find the disconnect switch to your air handler or furnace, and switch it off. This will be located near the unit. Shut off the circuit breaker at your home’s electrical panel if you can’t find the ...

The Fast-Stat Model 7000 wiring extender provides super fast air conditioner to heat pump conversions by eliminating the need to repull thermostat or condenser cables. The three-part kit includes a ...

Is it because the old twist-knob was a "4-wire" thermostat that cuts power completely while the new RLV3120A is a "2-wire" thermostat that doesn't? I'm an electrical engineer but this is my first time ...