Question about Cozy (W352E) Heater

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Pilot lights fine, furnace fires up, when it turns off the pilot goes out

I have a cozy wall furnace - probably 6-7 yrs old. The pilot lights fine and stays lit for many days, but every 3-4 days it will go out. Usually it is when the furnace has just kicked off as it shuts off, the pilot goes out as well. I have replaced the thermocouple - no fix. Any ideas?

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  • glennpc Nov 19, 2008

    I have the same problem, but with a furnace instead of a wall heater. The pilot lights the burner and the blower starts, but when the burner shuts off it snuffs out the pilot. The pilot never goes out at any other time - only when the burner shuts off.

  • Ken Bledsoe May 11, 2010

    Is the pilot a good flame say at least 3/4 to 1 inch long?

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Need to have at least 3 feet of vent out of the roof, if it is to low the coll air will cold soak down to the pilot and shut it down.

Posted on Oct 22, 2010

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1 Answer

I AM WORKING ON A COZY W501E WALL FURNACE AND CANT GET THE PILOT TO STAY LIT. i HAVE CHANGED THE GAS VALVE, THERMOCOUPLE,AND THE SENSOR FOR THE HIGH LIMIT. THE PILOT WONT STAY LIT.


Pretty much the only thing that will do that is the thermocouple not generating enough voltage for the valve to say it's OK.
Usually you need to hold the button for pilot lighting for 60 seconds. You can use a meter to check that it's generating enough power. The thermocouple has to be in the pilot flame properly.

Check this video:
https://www.youtube.com/watch?v=suen7QlJl4o

Gas furnace will not light Thermocouple test with the multimeter

Or see this site:
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I have a cozy model cdv255 direct vent wall furnace and the pilot light keeps going out. What causes this


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Apr 05, 2014 | Cozy (W352E) Heater

1 Answer

Cozy wall furnace (propane) does not respond to thermostat. The pilot is lit. Furnace is 3 yrs. old and rarely works. The wire to thermostat is 20 feet.


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Jan 30, 2010 | Cozy (W352E) Heater

1 Answer

Relatively new wall furnace suddenly stopped working.


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Jan 13, 2010 | Heating & Cooling

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I have a cozy wall furnace and I'm having trouble with pilot


try changing the thermocouple may be worn out also check the flue heat limit switch

Best regards
Greg

Dec 11, 2009 | Cozy (W352E) Heater

1 Answer

Cozy furnace


The pilot orifice could be dirty causing the pilot flame to be too small. Unscrew the pilot tube at the pilot assembly. The orifice is inside. Remove the orifice and blow it out with compressed air only. Reassemble and see if that fixes the problem. If the pilot flame is set too low, sometimes opening a door will cause a draft to blow out the pilot. If the thermocouple is good and the pilot flame is set properly, the control valve may be bad.

Oct 22, 2008 | Cozy Enclosed Front Console Heater 70,000...

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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.

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