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Pilot light lights but main burner will not ignite

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Pilot lights but main burner won't

sometime if the heater has been sitting for days spiders get into the burner area or the area between the tank and the burner and make a web blocking the flow. I have taken a compressed air in a can like the ones you use for computers laptops and blow air up the shaft and around the burner wait 2 minutes then try again. Sometimes it takes 2 or 3 blowouts to work. Put the air compressor right in the little gas nozzle that comes out to light the pilot for the best results

Posted on Aug 21, 2008

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SOURCE: Pilot Light

i had this trouble with a different fryer. We had lpg instead of natural gas. check youre using the correct gas.

Posted on Oct 20, 2008

  • 2597 Answers

SOURCE: main burner will not ignite Tempstar(NTC5075BFD1)

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

Posted on Jan 17, 2009

co7196
  • 3433 Answers

SOURCE: 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.

Posted on May 06, 2009

  • 10865 Answers

SOURCE: Propane patio heater ignition problem

I would change the thermocouple and here is why:

The thermocouple is the pilot's, well, co-pilot! It is the electronic device that senses if the pilot flame is hot enough to sustain burning the gas fuel from the burner. If the thermocouple thinks it's safe, then it keeps open the main gas valve located in the pilot assembly. If the thermocouple does not sense enough heat from the pilot flame (such as when the pilot is out), then the thermocouple shuts off the gas valve to the burners.
How the Thermocouple Works
So what is this thing and how does it work? Well the thermocouple (technically called a thermocouple junction) is a device that contains two metal wires welded at the ends and placed inside a protective metal case. The thermocouple sensor is found at the business end of the pilot flame and is designed to be placed in the hottest part of the flame. The other end is connected to the pilot valve body. As the thermocouple heats up, it produces a small amount of electricity and when it gets hot enough from the pilot, send a signal to open the gas valve by using a solenoid operated by a 24 volt transformer. The thermocouple calls the shots, and by converting heat to an electrical signal, it allows the gas valve to open or close. Once the gas valve is open, gas is then constantly supplied to the pilot and as required for the gas burners (as called for by the thermostat). If the pilot goes out, then the thermocouple gets cold and produces no electric signal to open the gas valve's solenoid and the gas valve shuts off the gas supply to the pilot and burners

Posted on May 27, 2009

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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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  • 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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1 Answer

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

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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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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

1 Answer

I have a Frigidaire gas range, model #FGF316BSA. When I attempt to operate the oven it won't light. The glow bar comes on but nothing happens after that.


Hi


Thanks for using FixYa. From what you have described it seems that possible oven control is not sending gas for the pilot light. The pilot light works but no main burner ignition - possible pilot assembly is dirty and the pilot flame is too small, safety valve and thermocouple is faulty, the bulb from the safety valve is out of position and the pilot flame is not touching the thermocouple bulb. Some ranges use a standing pilot light ( small flame is on all the time ) while others use an spark ignition to light the pilot light flame and the pilot light flame heats up the thermocouple bulb to allow the main gas to flow through the oven burner.


Please do accept the solution if the issue is resolved or else revert for further assistance.


Thanks
Rylee

Jan 15, 2010 | Kitchen Ranges

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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1 Answer

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.

May 05, 2009 | Bosch & Tankless LP Hot Water Heater

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Main burner will not ignite Tempstar(NTC5075BFD1)


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

Jan 15, 2009 | Goodman GMS90703BXA Heater

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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