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Pilot light comes on when i release knob to turn gas on pilot goes out and no flame

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Sounds like the problem is your thermocouple or flame rod, whichever your heater uses to sense that the pilot is burning. If it is thermocouple you will need to replace it and if it is a flame rod you may be able to clean it with some steelwool.

Posted on May 14, 2010

Testimonial: "cleaned the pilot and tapped the thermocouple seems to be working thanks for a warm winter"

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Oven lights but then flame goes out as soon as I release the knob


The flame sensor seems to be bad.

When I light my pilot light, it stays on till I release the button ...

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Mar 18, 2008 - Similar Questions: light pilot stays till release button suggestions ... If you have held it for a long time and it still won't stay lit, then your thermocouple is bad.... the gas valve doesn't think a flame is burning the gas coming out of the pilot ... less likely but somewhat common is the gasvalve... if the knob you are ...

Troubleshooting Gas Range and Oven Problems ' Back ...

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1 Answer

Need to light pilot light


You need to turn the knob on the gas valve (inside the heater) to the "pilot" position. Then, while holding a flame over the pilot assembly push down on the knob.

Gas should come out of the pilot and ignite. Continue holding the knob down for 10-15 seconds. Release the knob and the pilot should stay lit. If not the pilot generator may need to be replaced.

Turn the knob to the "on" position, close the heater and turn the heater on and turn the thermostat to hot. The heater should fire. If it does not fire and the pilot goes out, that may also indicate a pilot generator problem.

Nov 20, 2013 | Teledyne Laars Pool & Spa

1 Answer

New blue flame heater, everything is hooked up, gas is going to unit, I have a natural gas hookup, in the correct port, knob is turned and locked into the NG position but unit wont light. There is gas...


do you have the pilot light burning if not then you have to get in burning first
Put knob in pilot position push down and hold for at least 30 seconds or longer then if there is an igniter push and release it push and release till pilot light comes on .Continue to hold pilot light button down for another 10 seconds or so, release pilot button and turn button to on or up a number or set T stat
Main flame should come on and burn

Oct 13, 2013 | Procom Heating & Cooling

1 Answer

My heil furnance comes on but no hot air or air at all


see this causes and fix it. God bless you
o light the pilot on a standing-pilot (always on) ignition system, follow the lighting instructions located near the control. Otherwise, try these steps: Light the pilot:
  1. gasfurnace1.jpg Press and hold the pilot control knob to start the pilot. Set the control knob to the pilot position. Hold a long match under the pilot gas port.
  2. Press the control knob; the pilot should light. Hold the control knob down until the flame is burning brightly (about 30 seconds). Release pressure on the knob, and turn it to the on position.
  3. If the pilot goes out when you release the control knob, try relighting, holding the control knob down longer. If the pilot again goes out, check the thermocouple (below).
Adjust the pilot:
  1. Remove any cap covering the pilot adjusting screw on a combination control.
  2. Turn the adjusting screw counterclockwise to increase the flame or clockwise to decrease it. It is correctly adjusted when the flame envelops the thermocouple bulb by 1/2 inch and appears dark blue with a small yellow tip.
Test and replace a thermocouple:
  1. Hold the control knob to pilot and light the pilot as above.
  2. Unscrew the thermocouple fitting with an open-ended wrench.
  3. Set a multimeter to the DVC (lowest voltage) scale.
  4. Clip one multimeter lead to the end of the thermocouple tube nearest the pilot and the other lead to the fitting on the other end of the tube.
  5. If the multimeter shows a reading besides zero, the thermocouple is functioning. Replace the thermocouple tube.
  6. If there is no reading, you will need to clean or replace the thermocouple following steps 7 through 11.
  7. Release the control knob and shut off the main gas valve on the gas-supply pipe that leads into the burner. Shut off power to the burner at the electrical service panel .
  8. Remove the thermocouple from its mounting bracket.
  9. Wipe the combination control clean and install a new thermocouple, tightening it by hand, then give it a one-quarter turn with a wrench.
  10. Insert the thermocouple into the pilot bracket, being careful to not crimp the tubing.
  11. Turn on power to the furnace and relight the pilot (above).
Adjust an adjustable burner air shutter:
  1. Set the thermostat to its highest setting to keep the burner running. Once the furnace has heated up, remove the burner access panel and loosen the locking screw.
  2. Open the shutter by turning it to the right until the blue base of the flame appears to lift slightly from the burner port surface. Then close the shutter until the flame reseats itself on the surface.
Clean removable burner tubes and ports:
  1. Shut off gas and power to the furnace.
  2. Unscrew or loosen and remove the tubes from the supporting bracket.
  3. Carefully clean the tubes with a brush or vacuum, making sure not to damage the burner ports.
  4. Use a stiff wire to clear any debris from clogged ports.

Oct 08, 2012 | Honeywell Icp Heil Tempstar Furnace Spark...

1 Answer

Pilot light goes out when gas turned on


I am assuming that you are saying that after you have pushed the pilot knob down and the pilot lites and stay lite and then you turn the knob to turn it to ON the pilot goes out...... Then the Gas Valve is bad and will have to be replaced....... Or if you are saying that the pilot goes out when the burners come on then you may need to replace the Thermocouple because the main burner flame is pulling the pilot flame off of the thermocouple and it is weak and will shut the gas off.... Or You could have a cracked heat exchanger that when the burners are on and then the blower comes ON and is blowing the flame around and blowing the pilot flame off of the thernocouple......which will shut the gas off....and then you will need a new furnace or New Heat Exchanger...... These are the most common problems Hope this helps.....

Feb 16, 2011 | Heating & Cooling

1 Answer

40,000 btu Charmglo patio heater, brand new, pilot light stays lit as long as you keep the knob depressed. As soon as you release the knob, and turn it to the high position, the pilot goes out! Please...


There is a thermocouple that detects that there is a pilot flame so that main gas won't come on unless there is a pilot. That thermocouple is faulty. These are available from a plumbing supply house. The thermocouple will be attached right in the flame from the pilot and connects back into the gas valve.

Dec 24, 2010 | Garden

1 Answer

How do I lite a wall room heater


First, turn off the gas valve for at least 5 min and ventilate the room. Most wall heaters are lit the same as a water heater. Find a red button to push or turn the gas valve knob to the pilot position. While pressing the red button or the gas valve knob, hold a match to light the pilot flame. After it lights continue holding the knob for one or two minutes. If the flame goes out when you release the knob the thermocouple is probably bad.

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1 Answer

Pilot flame lights but goes out when knob is released


i would try cleaning or replacing the thermocoulpe if you did replace it make sure the flame is touching the thermocouple

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4 Answers

Natural gas patio heater


MAY I KNOW THE EXACT MODEL # OF YOUR UNIT.

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1 Answer

Natural gas patio heater


make sure there is no dust dirt spider webs in the pilot hood if u have a nice blue flame coming from the pilot and u held the pilot knob down for at least 30 sec
and it still doesn't work then u have a bad THERMOCOUPLE

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