Question about Cozy (W352E) Heater

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I have a Cozy dual side wall furnace. A few weeks ago it was making a loud popping sound like someone hit the heater when it was running for awhile. Now it doesn't make that noise but when the thermostat clicks on the burners don't ignite right away releasing some gas till it reaches the pilot then a flame rolls out but after that it runs normal. HVAC guy said it could be a nest in my vent but took it apart and thats not the problem. Does anyone know what I can do to fix this.

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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hotuna
  • 288 Answers

SOURCE: Cozy dual sided wall heater

There isn't much to these things, its either the pilot generator or the gas valve. Or maybe both, try the first, then the second.

Posted on Dec 23, 2007

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hotuna
  • 288 Answers

SOURCE: cozy wall heater lights fine then goes out after 3 or 4 minutes

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.

Posted on Dec 25, 2007

  • 10 Answers

SOURCE: cozy heater 35000 btu pilot light goes out every 4 days

The thermocouple needs to get red hot. If the pilot flame is too low or too high or if it is not pointed on the thermocouple well, it won't stay hot enough. If the pilot flame is too low, a draft caused by opening a door could blow it out. If correcting this doesn't fix it, it could be a bad thermocouple or control. The factory assembly on these heaters is not the best.

Posted on Feb 03, 2009

shastalaker7
  • 1515 Answers

SOURCE: Cozy wall furnace burner will not light. Pilot

Hi, have done this to many times not to know. I will walk you through this. It is good that the pilot is lit. Go to the stat and remove cover. Don't worry as this is a milivolt unit, no voltage or such a small amount you wont even notice as this is why it is called milivolts.Take a small screw driver to remove the next section which is the thermostat and will expose the sub-base where you will find 2 wires connected to it. You may have 2 or 3 screws to take loose to get to this last section. Anyway, if you have a piece of insulated wire laying around, even old speaker wire will work, take it and touch the wire across the 2 terminals and hold. If the furnace comes on, the thermostat is faulty, and you will need to buy a new one. No power to shut down, and simple to change. Cost about $12.00 dollars. Try and get a heat only milivolt stat as they are much less expensive and will have less problems with them. Go to home DEPOT to get one, or O.C.S.H. will also carry them. Don't let the salesman talk you into buying a programable heat and cool stat, 24 volts as they will work, but cost more and you don't need it!! Look around even if you need to go to a wholesale Refrigeration, Air Conditioning, and Heating parts house. Tell them you need one for a unit in some apts you own, and you will pay cash as you want a cash account. They will only ask what job its for, and just tell them your name. This is not illegal and I wouldnt tell you this if it was!! You will still have to pay taxes but will get a wholesale price for it. I am sure it will fire up when you touch the 2 wires and prove stat is bad. For some reason it is not the stat, follow the 2 wires from the stat down to gas valve and jump the same 2 terminals there also. If it fires up, you will have a problem in the wires from the stat to heater and will need to be replaced. I don't think this is the case. But, on the chance it will not fire after you have done all of the steps I have had you do, then you have a faulty main gas valve(MGV) and will need to replace. This is all easy to repair.I am a 100% sure it will fire up when you jump the 2 wires together, and you will need the stat. Please let me know as I will be waiting for an update! Good Luck,
Shastalaker7
PS When you install the new stat, make sure it is Level.

Posted on Dec 18, 2009

shastalaker7
  • 1515 Answers

SOURCE: Cozy Wall Gas Furnace Pilot won't stay lit

Hi, if you have replaced the thermocouple or thermopile generator, and it keeps going out, you will need to replace the gas valve. That's all it can be is the milivolt coil on the valve, trust me. I have been through this many times.
Sincerely,
Shastalaker7

Posted on Dec 29, 2009

Testimonial: "Very helpful, hit the mark right away - had I used Shastalaker7's advice from the start I could have saved A LOT of money, time and headache!"

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