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Pilot lights main burner doesn't ignite - Heating & Cooling

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It would really help to know what type of heater you have. Manufacturer and Model Number are very important in trying to help you solve the problem. As, not all heaters are alike.

Thanks

Posted on Mar 20, 2011

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Posted on Jan 02, 2017

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Electronic ignition clicks really fast wont light and finally shuts off What is the problem with our Duke E101GV


The ignition module is energized solely by the thermostat output. When the tstat satisfies, all power is removed from the module. The pilot and the main burners go out.
When the module trials for ignition, it must prove pilot flame and then turns on the main burner. If it doesn't sense the pilot for some reason, it also disables the pilot solenoid valve.
If the pilot comes on and stays on, but main burner doesn't come on, there's several possible problems:
  • Faulty ignition module
  • Faulty main burner solenoid valve
  • Faulty wiring between the module and valve
  • A gas blockage at the main burner
All this under the assumption that the main burner is correctly installed.
https://techtown.partstown.com/thread/1710-i-have-a-duke-e101g-convection-oven-that-is-not-firing-not-sure-what-the-problem-is-it-takes-a-long-time-to-get-to-temp-but-when-food-is-put-inside-it-seems-to-never-make-it-to-temp

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Pilot light will not ignite water heater


the pilot light serves to purposes. it is the source of ignition for the main burner and is a safety device that detects wether there is a flame or not. if the pilot light stays on when you stop pressing the pilot light button then you need to turn the knob to the on position to light the main burner. the pilot light is not the on position. if the pilot light goes out when you stop pressing the pilot light button then the thermocouple or flame sensor needs replacing. good luck

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Napoleon Fireplace propane Pilot won't light main burner even though gas flows in?


  • I'm going to assume your fireplace has a pilot light.
  • Follow the little holes in the burner that lead to the pilot light.
  • Make sure the pilot flame is pointing directly at the closest burner hole. (adjust if necessary).
  • Often, you will need to sprinkle a layer of "glowing embers" in this area. The embers will help the gas travel to the pilot light and ignite.
  • Always start your propane appliance on "High" never "Low". Cold propane likes to drop to the bottom of the firebox and accumulate until it reaches the pilot (this is called delayed ignition). Keeping it on "high" will help the fuel travel over to the pilot without buildup.

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Pilot lights but no main burner


Is there a way to check for gas pressure even if just a slight loosened connection to hear it then quickly re-tightened. Otherwise the main valve is not working as it should and will need to be serviced or replaced. Thats all i got.

Dec 02, 2011 | Empire Heating & Cooling

1 Answer

My uniflame has two burners and one does not ignite. Everything seems to be tight. What can I do to get this to ignite when turning ignition knob? Thanks!


When you say two burners, I believe you are referring to the pilot flame and the main burner. The pilot flame has to light and heat the thermocouple befoe the main burner will ignite. The pilot flame will not light if: there is not enough gas in the tank, the pilot jet is clogged, or the regulator is bad. Check the tank to make sure it has gas. The next thing to check is the pilot jet. You have to take the heater apart, somewhat, to get to the pilot jet. The tube and the orifice need to be cleaned out, compressed air in a can and a pipe cleaner make the job a little easier. If this does not work, replace the reglator and hose.

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1 Answer

Pilot lights but gas does not ignite main burners


After lighting the pilot, has the control knob been turned to the ON position? If left in the Pilot position, the burners will not ignite.

May 31, 2011 | Heating & Cooling

2 Answers

What causes delayed ignition, causing a slight boom on lighting main burner?


There will be a web or bug or debris in the pllot asssembly /rail that blocks the path of the transition to main burner or ignition of pilot assembly itself, when it does ignite, theres too much gas built up in the pilot ignitor area and it explodes, clean the orifices in the pilot asssemblt / and or the pilot rail or main burners orifices at the pilot area.

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No hot water, pilot light lights but no burner ignition


Thermo coupler may be defective. it controls the main gas valve by closing main if pilot is out. make sure thermo coupler bulb is positioned over and near tip of pilot flame, but not in the flame. Thermo couplers are inexpensive and easy to change out.

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Main burner will not ignite Tempstar(NTC5075BFD1)


try cleaning the pilot oriffice it sounds like the flame is weak

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1 Answer

Pilot flame starved out after burners ignite


The declining pilot light might be an indication it is being starved of oxygen by the main burners or some other sort of circumstance.

I have noticed how in a closed room without ventilation the pilot light soon begins to decline and then springs back again when a window or door is opened while the main burners are hardly affected.

This is the gas equivalent of sending canaries down coal mines and is an essential safety feature. If the pilot light declines very much the thermocouple bulb will not be heated and the gas supply to the main burners will be cut off. This is why the pilot light is set at an angle and the thermocouple bulb is slightly offset.

I am not sure if this helps but I hope it does.

Mar 08, 2017 | Ovens

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