Cozy 351A 35,000BTU unit- pilot lights intermittently. When it does light, it shuts itself off with varying time frames. (Anywhere from a few minutes to few hours) Have replaced the thermocoupler- no change. Should the gas valve be replaced? Also, could the turn over switch affect this problem? Can the turn over switch be disconnected? Thanks
Heating & Cooling - Cozy - Enclosed Front Console Heater 70,000 btuh Natural Gas
Answers & Comments
I would be inclined to look seriously at the gas valve as the source of your problem. First I would check all wiring connections and make sure there is no breakage in the insulation. It's is really hard to say with something that acts differently like that but I would make sure that your pilot flame was good and strong and the thermocouple is as centered in the flames as you can get it. I would also clean burners and pilot light . When burner is on try tapping gently on the valve and main gas line to burners,when you do this the flame shoul burn more orange or yellow and then settle back down. Sometimes you can get tiny particles broke loose and burned on out.
You can bypass the turn over switch but I would only do this for test purposes. Hope this help. Thank you.
Sorry I got called away for a bit. I also wanted to suggest that if you have a volt meter to check across Th and Tr when unit is calling for heat. While the valve is open and the unit running you should have steady voltage. Thanks again frodo.