There are 2 hot lines (white wire that goes to heating contact & Blue wire that goes to furnace limit switch & both of those are hooked on same side as wire coming from main power wires) that make it run.
I can pull the other 4 wires off, and those 2 still have it running when thermostat has everything off. The A/C unit is a Westinghouse packaged air conditioner (meaning all of the A/C components are in the outside unit).
How can I fix this?
Best Answer
What happens when you disconnect the G thermostat wire at the unit? If your problem goes away the problem is either the thermostat or the wires. If it goes away reconnect the wire and disconnect the G wire at the thermostat. If the problem comes back it is in the wire if it stays fixed it is in the thermostat. If neither works it is in the package unit. Some units run the fan to alert you to a problem but usually that is all that will work. Older units may have a separate blower relay but most newer ones will have the relay in the circuit board. You didn’t say if this has always happened or if it just started. If it has always been that way the motor may have been directly wired to line voltage. Maybe the relay broke and they didn’t want to replace the circuit board? Or maybe someone just wanted continuous fan.