Question about Cozy (W352E) Heater

3 Answers

Heater won't come on when temp drops...must reset limit switch every time.

Have replaced thermostat and had serviceman check out heater. Said limit switch ok and could find no problem. But something is clearly wrong...should not require manual re-setting of limit switch every time. Also, heater then turns off pre-maturely, and won't kick back on.

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  • Anonymous Jan 20, 2008

    Cozy W351-E Wall Furnace

    I don't have a reset button. My pilot light goes off and the only way to get it lit is to jumper the two leads that come out of the switch that the copper tube of the pilot light screws into. Then, I leave the jumper wire connected and attach the roll over switch connector. The pilot light stays lit. Then I disconnect one of the jumper aligator clips and the pilot light slowly goes out.

    I have had this problem since I bought the wall furnace in 1999. Every so often this would happen, sometimes I could get it relit, sometimes I had to call the service man.

    The roll over switch has been replaced, adjusted and once the service guy could not figure out what happened the wall furnace just started working and he didn't know why.

    What's the deal with this roll over switch? Has the switch been improved over the years or if I replace it do I still have to manage this problem.

  • Underwoodflo May 05, 2008

    I have the pilot lit and have changed the thermostat and every sensor, yet the heater wont do anything, but the pilot stays lit. I turn the thermostat up to 90 and it wont click on.Any help please respond.

  • dkuym Dec 03, 2008

    Dig this - my lenox 80 works like a champ from 10 a.m. until about 8:00 pm then I have the same problem - it ignites - acts like it's about to turn on - then shuts down. I have to turn it off and on to get it to react but it rarely actually kicks in and works.

    What gets me is when I come home for lunch every day - it's usually on and working like a champ - but i'm freezing at night!!! (



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The over limit switch is kicking on because something is blocking the flue, probably the insulation that goes from the adapter from the wall heater to the flue termination plate... Best bet!! Take off the wall heater cover and light a couple matches and blow them out next to the intake on the top of the heater, it should **** the smoke right up the flue and if it doesnt it is blocked by something like i said earlier...

Posted on Dec 31, 2008


Guest here,
Correction to the above post. The jumper wire is attached to the two leads that come out of the switch that the copper tube of the thermocouple attaches too, not the pilot light.

Posted on Jan 20, 2008

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The limit switch is shutting off and you are having to press the re-set button, right? The limit switch, if I am understanding you correctly, is the thermal disc type, may be ok, but what is causing it to shut off? I would first, not put total faith in the serviceman (PG&E maybe) and replace the limit switch. Its only a few bucks,and easy to do. Then if its still the same problem, look into the venting pipe. As it may not be adequate for the heater. Espically if its new. These new wall furnaces are kind of touchy. It may be larger, BTU wise, and the vent pipe may need to be enlarged. If this is a big job, and a bit too impractical, check the vent pipe, make sure its in good conditon, no leaks ect. install a cO2 detector and by-pass the limit switch.

Posted on Jan 07, 2008

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