Question about Cozy (W352E) Heater

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Cozy wall heater does not turn on

Gas company said possibly a bad thermostat/ignition?

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  • pops99 Dec 10, 2008

    Will not turn on if room temp is below approx 60 deg F.
    have replaced thermostat 4x.
    Replaced Wire from thermostat to heater with 18ga "thermostat" wire. (approx 35' run).
    Any ideas appreciated.
    Dwight
    pops99@dslextreme.com


  • DonBow11 Feb 06, 2009

    My Cozy wall heater is about 5 years old and has begun to act up. When the thermostat is set at 60 or 80 for that matter, the heater wont light. The pilot is lite but it won't light off the heater. I have found that if I give the gas mechanism a few taps with a screw driver it will light off but will not do it on it's own. If it needs cleaning, how and what do you clean?

  • msgshtgn May 11, 2010

    The most you should run on a milivolt system is about 20 feet anymore than that the line loss of the milivolt system would be extreme.. check the milivolt reading at the unit and then at the thermostat... if you have more than a 200 milivolt drop accross the thermostat the thermostat must be placed closer to the unit... the gas valve requires at leat 200 milivolts to operate at a normal rate.. your thermoplie only prduces 500 milivolts.... on a good clean pilot as it gets older it produces less.. so if you have a long run of wire... also make sure you are using milivolt thermostat.. no heat inticipator.... it will say milivolt right on the package

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Hi, I will walk you through to check the stat. Pull off the cover 1st. You will need a screwdriver, a small one. Could be slotted or phillips. Loosen all of the screws you can see until the t-stat comes off. You have 3 sections counting cover. You will now see the sub-base and wires. You should have only 2 wires to the stat. You will need a piece of scrap insulated wire, even a piece of old speaker wire twisted togeter at each end will work. No worry of shock. Just jump or touch across the 2 terminals and hold them on and if it fires up and comes on, the thermostat is the fault. More then likely that will be the problem. Any hardware store will have one. Get a heat milivolt only, even if the salesman trys to sale you a heat/cool 24 volt stat which will work, but will cause problems in the future. I am sure it is stat. If not, contact me and I will walk you through what else would cause this. If the pilot is on, there is no ignitor on this furnace, either a thermopile generator or a thermocouple, a high limit switch and the main gas valve. Keep me posted, it will only take you a few minutes to test the t-stat. Let me know.
Shastalaker7

Posted on Dec 18, 2009

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