Question about Empire GWT-25 Wall Mounted Panel Heater

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Empire wall furnace won't stay lit after addional tank added.

Heater worked fine all last season. Gas co. added tank yesterday and it won't stay lit ever since. Can't get tech support as it's T-day today. Have looked at everything inside and out I can think of. Any ideas? Thanks!

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Air in gas line? Bleed the gas line and try again. Make sure tanks are on.

Posted on Nov 28, 2008

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I've got a 23 yr old 30DV3 whose pilot light works, and the thermostat & heating element seem to work, but not well. With the thermostat set at full hot, it just barely throws out any heat at all. ...


As I'm sure you already know, Empire Comforts Systems, no longer makes that model heater and hasn't for some years, now. I mentioned that, because if your unit needs parts, they may be almost impossible to get. In any event, there are a several things that may be causing the problem.

  • Low Gas Pressure - Burner is not receiving enough gas. Check for obstructions and have gas pressure at the unit checked.
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At 23 years old, you've gotten your money's worth out of this unit and it may be time to replace it. Empire makes several Direct Vent Wall Furnaces that are rated as High Efficiency Furnaces. In the long run, the money saved in fuel cost, would be worth installing a new one.

Hope this helps you solve the problem.

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The pilot will not stay lit in our Cozy Direct Vent Wall Furnace CDV335B. Problem occurs with winds. Last heating season, replaced powerpile, thermostat, ignitor, gas valve, and pilot burner. Any...


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Wall heater new 07, worked great all last season, turned on this


there could be something stuck in the pilot assembly since you added a new tank to system. Check to make sure flame is hitting thermalcouple. Can you wait for a repair man to come and take pilot assembly out and clean. He will also replace thermalcouple. If you can't wait and you feel comfortable with taking pilot assembly out. Turn gas and electric off to unit then pull cover panel off. Pilot assembly is held in with two screws. Take tube off of gas valve and take off thermalcouple line off gas valve too. take out pilot assebly. Once you have it out take gas line off bottom of pilot assembly. There is a orfice in side make sure you can see through the orfice. You can also clean thermalcouple with a wire brush or sand papper. Reinstall pilot assembly make sure all fittings are tight. turn gas back on and light pilot. If everything looks good turn power on. Turn heat up run heater for a few minutes then turn heater down and let sit to see if it will stay on.

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3 Answers

Wall gas furnace


look inside the control panel of the heater. look for a 120 volt to 24 volt transformer.  There may be a fuse on the transformer secondary.  The thermostat switches a hot 24 volt wire so you won't find a common at the thermostat.

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