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When furnace kicks on, stays in for about 30 secs and kicks back off

Pilot is lit, but when unit kicks on, again stays on for about 30 secs and then it cuts back off. There are no fault codes.

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  • Heating & Co... Master
  • 2,461 Answers

It could be you need to clean the flame censor , check air filter is clean , clean pilot it could be blocked .Check hoses to pressure afr tight and not spilt .

Posted on Jan 06, 2013

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Heater not staying lit

my furnace pilot light is on but the burners will go off when we put the thermostat on auto. if we keep the fan on the burners will light but turn off the fan and and the burners go off

Posted on Jan 18, 2009

  • 10 Answers

SOURCE: 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.

Posted on Feb 05, 2009

zonaluver
  • 7 Answers

SOURCE: Torpedo heater wont stay lit.

Do you have the serial number or the manufacture date? There are some design changes and I would need to know the year of manufacture to assist accurately. Usually it is a relay or the thermocouple connection that will affect the unit staying lit.

Posted on Mar 29, 2009

tborn6
  • 700 Answers

SOURCE: Rheem furnace RGDG-100AUER - Pilot does not stay on

replacde the thermocouple and you should be all right.

Posted on Apr 05, 2009

heatman101
  • 43501 Answers

SOURCE: Coleman Gravity Floor Furnace need millivolt gas valve & pilot ki

Go to www.grainger.com and look for a "power pile generator" this is a millivolt thermocouple that may be just what you need to make your heater work again

Posted on Nov 12, 2009

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1 Answer

Why is gas furnace in igntion lockout due to recycles (8 blinks). likely causes?


Check the thermocouple (heat sensor) on the pilot light...it tells the control unit that there is a lit flame...otherwise, the control unit won't let the gas valve open...does the pilot light stay lit after you've held the button down 30 seconds?...

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Pilot on furnace wont stay lit


Sounds like the thermocouple is shot

Nov 09, 2014 | Dayton Gas Furnace Heater

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Pilot on my gas furnace won't stay lit


Try cleaning the thermocouple tip if you can see ashes or any buildup on it. If you know the wind isn't blowing it out (had mine blow out from high winds before) then I would change the thermocouple before anything else.

Dec 09, 2013 | Heating & Cooling

1 Answer

I have an amana furnace and it will not kick on. When the switch is turned on the furnace will try to run but won't warm up and blow. Does it have a pilot light?? or a reset button??


Try this----turn furnace off at stat and unplug furnace for 10 minutes. Plug it back in, the combustion and blower motor may both kick on for 2 minutes or so or not. Turn t-stat to heat and turn up stat to highest setting. Hurry out to furnace and you should hear the combustion motor(little motor piped to flue) kick on, then wait for a "click" next you should see a glow from the igniton element, then another click, next will be the gas valve opening. If no ignition, it will try 3 times and then lock ur *** out, and just turn on the blower just as a precaution. If you dont see the glow plug glowing after the first click, replace the $20 glow plug and you should be good to go. The glow plugs crack, and this is what breaks the connection. If you gas valve has a knob, and says pilot----turn the valve to pilot, push down on the knob, light the pilot and hold down knob for 2 minutes to heat up flame sensor. Make sure the t-stat is all the way down or off. After 2 minutes of holding pilot knob down, let go and your pilot should be still lit, if it is, then turn gas valve to ON and then turn t-stat up to kick on furnace. If ur pilot doesn't stay lit, get a new thermal couple and replace it-$12 bucks. Good luck and let me know how it went. azeddysac@yahoo.com

Nov 06, 2010 | Heating & Cooling

1 Answer

Garage furnace (standing Pilot) pilot stops after 30 mins.


it sounds like the afc the fan control not working could be dust on the afc

Jan 10, 2010 | Dayton Gas Furnace Heater

1 Answer

It wont lite, how do you lite the pilot, where is it located, do you have a manual i have a coleman presidental 3 furnace


There is a window directly above the gas control valve. Either a spring held latch or a screw off cover need to be removed to access the pilot. To light the pilot, turn the knob to pilot and hold down while lighting pilot. The pilot in straight back inside the hole about 10 inches. Use a long fireplace match or rig a wire to hold the match. Once the pilot lights, hold the control knob down for about 30 secs., if it stays lit after release, turn to "On" and operate normally.

Dec 13, 2009 | Tools & Hardware - Others

1 Answer

Coleman Gravity Floor Furnace need millivolt gas valve & pilot ki


Go to www.grainger.com and look for a "power pile generator" this is a millivolt thermocouple that may be just what you need to make your heater work again

Nov 12, 2009 | Heating & Cooling

1 Answer

Pilot wont stay lit installed new gas valve and new thermocouple


Is this a standing pilot furnace, or electronic igniton?

If standing pilot, does the heater use a fan to blow air through the heat exchanger?

If the answer to those questions is yes, then check that the pilot orifice is not partially plugged and that there is a strong pilot blowing against the thermocouple. If there is, replace the thermocouple. If not, check the orifice again, and check that the inlet screen to the gas valve is not filled with gas line trash.

If the the pilot flame is good and it continues to go out, the thermocouple magnet in the gas valve may be weak. Replace the gas valve as to get just the magnet and coil is not easy.

Reply back any questions you may have.

Jan 28, 2009 | Dayton Gas Furnace Heater

1 Answer

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


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.

Nov 08, 2008 | Cozy (W352E) Heater

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