Jumper wire at furnace to bypass thermostat...
Asked Nov 10, 2011, 06:37 PM
Hi, I am wondering if anyone has an easy step by step process that I can follow to jumper my thermostat at the furnace. If I do not have access to the thermostat (upstairs and the landlord isn't home, but I am working in the tenants apartment in the basement) and I want to check my manifold pressure, dropout and such how would I do it safely without frying the thermostat? I should put a jumper wire between R and W, but I was told to disconnect the thermostat wire first. Does that mean I disconnect R place my jumper between the 2 and then put R back on? Any help of confirmation of this would be very appreciated!