Cozy wall furnace - unattached wire, won't turn on
Taking off the door at the bottom of the wall heater, there are are 2 blue wires (heavier weight than the pilot/themostat wires) coming from above. One plugs (with a plastic sheath) into the front of the hardware that the pilot & thermostat wires are attached to. The other one has come unattached and it is not clear where it goes. The pilot and themostat wires are attached. The heater won't go on when turned on.
Where does the loose blue wire attach and can I do this myself? Thanks
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Re: Cozy wall furnace - unattached wire, won't turn on
Sounds like one of your limit switches lost it's wire. Look for a disc like device no more bigger then a 50 piece. You will see two wires going to that and if the wire broke take off the insulation and install new plastic sheath and re-attach. Let me know it that is helpful. ken
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by pass the wall stat, pull the 2 wires off stat and twist together and if unit runs ok it is the stat if it does the same thing by pass the stat wire by disconnecting the stat wires from the valve a put a jumper wire between the (th) terminals.
Try jumping the two thermostat wires together to see if the heater starts. If so, replace your thermostat. If not, jump the two terminals where the thermosta twires attach to the furnace. If it starts, you have a bad thermostat wire or connection.
Hi, that thermostat should be a wall mount. This heater has only 2 wires and any "Heat only", "millivolt" thermostat will work. Remove the old T-Stat and mount the new one on the wall, only 2 wires and less than a volt so no shock danger, doesn't even matter which wire goes where. Good luck and comment back if you need any help.
Make sure all the wire connections are good and tight. Next lift off the cover and look for a little thermal disc mounted up by top of the heat exchanger. Most have a re-set button but not all. If you have this ,by-pass it ,see if that solves the problem, if so it may be defective, or doing its job and you have a venting problem. If you don't have this and have changed the thermocouple (was it a copper tube with a fitting that screwed into the gas valve, or did it have 2 wires, that is a pilot generator, kind of same thing) make sure the probe is set correct, with the pilot flame heating the top 1/3rd of the probe. The only thing left is the gas valve.