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by taurolyon
Tue Jun 23, 2020 4:02 pm
Forum: Nordyne Service & Repair
Topic: Nordyne M1B1 furnace issue - thermostat c wire not hooked up correctly. It's running off atteries instead
Replies: 1
Views: 723

Re: Nordyne M1B1 furnace issue - thermostat c wire not hooked up correctly. It's running off atteries instead

I just did a thermostat on an M1MB (no AC). The C wire connects to the grey wire in the furnace. The thermostat instructions state it is commonly the blue wire. The electrical schematic is on the inside of the circuit board cover panel. (Caution, line power is in this panel. Turn off the breaker bef...