Question about Dayton (3E386) Heater

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Pilot light goes out when turning on the thermostat

I have a dayton lp heater model# 3e243 the pilot wont stay lite when turning the thermostat up

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Check your thermocoupling to make sure that it is sensing flame. You can tell if it is good or bad by the white on the tip of the flame sensor. The other problem would be a blocked or closed flue pipe. Make sure that the cap is not smashed down on the pipe on your roof

Posted on Feb 13, 2009

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Posted on Jan 02, 2017

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1 Answer

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Heater not working


The pilot stays Lit Correct? After lighting the pilot did you turn the gas knob to on postition?

-Turn Unit off and then turn thermostat all the way up.
Turn power back on and hopefully unit starts, if not.

-Turn unit off, disconnect thermostat wire and put a jumper wire between r and w. Turn Unit back on
hopefully it will start-if not.

You either dont have power to the unit or it is being
held out by a safety switch. A flame rollout switch
located near the burners could be tripped

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1 Answer

My living room gas heater will not stayb lit


Try replacing the thermo coupler.There should be a little bulb shaped part(like a pencil eraser) that the pilot light heats up .The other end screw into the gas valve.If this is going bad or has gone bad the pilot light will not stay lit.Most of these are under$10.Well good luck and try to stay warm.

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1 Answer

Pilot light


Hi the thermocouple is a long copper wire that goes back to the gas valve from the pilot .

i would clean the flame senser first , then check the pressure switch jump this out , then check the fan control or snap disc jump this out see if it runs if you need A THERMOCOUPLE then honeywell universal will do

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Cozy natural gas heater Mod # CLV 335A


get someone to check the gas pressure that is poss problem gas company if nat and the lp supplier can do it

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