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Upon start-up, the flame ingnites only as long as the pilot igniter is "clicking"--then goes out when the igniter stops. Does this 3 times then locks out. Can you help?

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  • 11 Answers

The flame sensor isn't seeing a proper flame. The wires that go from the flame sensor to the electronic board could have a bad connection, or the board's ground connection is loose. It would help me if I knew the brand and model numbers, but the problem is usually a loose connection. Since the electric signal voltage is so small, ANY wire connection that's not perfect will cause this problem.

Posted on Nov 10, 2014

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Posted on Jan 02, 2017

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  • 9 Answers

SOURCE: FLAME GOES OUT AFTER SHORT PERIOD OF RUNNING

TRY REPLACING THE FLAME SENSOR.

Posted on Dec 15, 2007

  • 4 Answers

SOURCE: pilot lights but when ignition pops back up the flame goes out

will either be the unitrol control box or the thermocouple, when you push down you are holding two magnets together and waiting for a small charge to be created from the probe in the flame , if this is not working you have no charge and the magnets won;t stick to allow the valve to open, change the thermo and see if that works first, its way cheaper than a new controler

Posted on Feb 05, 2009

  • 56 Answers

SOURCE: furnace shut off after 3 time flame from pilot

Sounds like you may have a weak or bad flame sensor. If the circuit board does not sense a good flame it will not light the burners. Also if your furnace is 5 yrs or newer it should give you a fault on circuit board in the form of a blinking or a code itself.

Posted on Feb 16, 2009

kentguidry
  • 51 Answers

SOURCE: HEATER AND PILOT GOES OFF AT TIMES

Sounds like your oxygen depletion sensor is shutting your unit off. The problem with fixing your unit is that it may cost you the same to purchase a new one (assuming you pay someone to fix it).

Posted on Feb 17, 2009

jumptrout51
  • 3361 Answers

SOURCE: Pilot is lit for 30 secs but when I turn the knob for the big fla

You have a white scale buildup in the gas valve outlet blocking the main gas flow. Take the valve apart and clean it.

Posted on Jun 14, 2009

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1 Answer

Ignition sorse is clicking but will not ligt


If Clicking, then most likely the heater is looking for "Fuel" to ignite!
Also, ... if the heater is clicking, sparking, then the heater has received all the confirmation to ignite, no need to check for switch in ON position, or thermostat/heat setting up enough, or sensors or ??? If they had failed, then NO clicking! So again, it is now looking for fuel for main ignition.
check the gas valve, is it on?
check the main gas shut off, on?

When was last time the heater ignited? If recently just prior to non operation, then the gas valve had possibly failed? It is not opening to allow the main burner to ignite. do you have a flame at the pilot? If so, then all of the above checks are not necessary, hence if valves were off, NO flame at pilot assembly! If no Flame, then check the valves for gas supply.

My guess without being there to diagnose, bad gas valve.

The picture shows a Pentair Heater, this is the valve for that.
but they are all very similar.



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Mar 06, 2015 | Pool & Spa

1 Answer

I have a dyna glo 30,000btu lp ventless wall heater. I know it needs the ingniter replaced. I have tried to light it by hand and can not. It seams like their is know gas getting thru,is this possible


yes you have to get the thermo couple hot in order to get the gas valve to open to ignite the main flame
You are probably trying to light the main flame and not the pilot
light
Hold the pilot light button down and put flame to the pilot light opening
You need to be very careful depending on the type of flame you are using to light with the thermocouple could get hot enough to open the main burner flame and it will ignite

I suggest replacing the igniter rather than doing the above step

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1 Answer

Have a Reznor propane heater, suspended, the pilot light ignites, though the ingniter runs continuously, thepilot light burns for about 2 minutes then everything shuts off, never ignites the main burn


First clean the flame sencor if fitted jump out the pressure switch see if thhelps , Also there are two snap discs high and low temp try jumping these out 1 at a time .

Mar 12, 2013 | Heating & Cooling

1 Answer

Natural gas heater with auto (electric) ignite... The exhaust fan is coming on when the unit is turned on, but it is failing to ignite. I can hear it trying to ignite several times, then it stops. Is...


First make sure your gas is on. If that's not it make sure the pilot tube itself is cleaned out try tapping on the pilot head to remove any build up. The furnace on a call for heat will first start the combustion blower then start the ignition procedure, that first starts the spark igniter or glow plug then timed through the circuit board a short 3 second burst of gas after the 3 second burst if the flame sensor does not sense the flame a short purge cycle runs another 3 second burst of gas and then try's for ignition again. Knowing this the only thing it could be is a gas related problem either no gas or no gas making it to the pilot head or the gas valve itself is not opening so check the gas and the pilot tube if there fine then you're more than likely looking at a new gas valve. Sometimes tapping on the gas valve will free a stuck valve.

Hope this helps and please remember to grade me.......thanks again

Nov 24, 2010 | Heating & Cooling

1 Answer

Fan turns on, pilot on left side turns on red light at bottom stays solid during entire time then pilot goes out and blower stops no heat please help


On a call for heat, the 24 volt thermostat sends a signal to the control module. The control module will indicate a call for heat with a light on the control either blinking or remaing solid depending upon model. The inducer (exhaust) blower will purge all gasses from the furnace and pressurize a pressure switch. Once the pressure switch tells the module to continue, the electronic ignition will energize and send 120 volts to the igniter. The igniter will glow and you will be able to see it if viewed thru the small inspection port. Once the igniter gets hot enough, it sends a signal to the module opening up the gas valve (24 volts). Either a pilot will come on or the burner tube will ignite then spread the flame to all burners. Lastly a safety sensor will be looking for a certain temperature within a few seconds and the furnace will continue to operate and the room air blower will turn on in a minute or two.

What could go wrong? The unit will not run if there is no signal from the thermostat (bad thermostat or broken wire), the control module does not sense a signal from the thermostat (bad control), the inducer does not energize (bad motor), the pressure switch does not close (blocked vent piping, bad switch, plugged condensate hose), the igniter does not energize (bad control, bad igniter), the gas valve does not open or there is no gas (bad gas valve, broken wire, no gas), the pilot does not light (dirty pilot), the burner does not light (bad burner, plugged orifice, not enough combustion air), the flame does not spread to each burner (bad flame spreader, dirty flame spreader, more bad burners), the flame safety sensor does not detect flame (dirty or bad flame spreader, bad flame sensor, broken wire, bad control), or the room air blower does not energize (bad fan motor, bad control).

Oct 05, 2010 | Goodman GMS90703BXA Heater

1 Answer

How do I fix a pilot light that will not stay lit?


Check the gas valve. Sometimes the springs in the valve can wear out.
Another thing is the pilot itself. Inside the pilot is a little rod that stays heated to ingnite the igniter. It can become dirty or corroded and won't allow the pilot to stay lit.

Apr 19, 2010 | Vanguard International Blue Flame - Large...

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is pilot flame on the thermopile good, pilot flame should cover the thermocouple and thermopile if unit has both

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My oven - St George UGM-4 model - won't light. I don't know how old the oven is. There have been problems for a while, with the flame going out after about 5 minutes when it's first lit (it makes a...


this one is hands on fix,many times the spark ignition the one that makes the clicking noise is clicking on a different position,so you most look inside the oven to see the spark, you can see it better at night or when is dark to see the spark, that spark is right at the tip of the oven pilot, make sure you see the spark lighting the pilot.as long as the pilot does not ignite.the clicking sounds continues making the noise. if the pilot lights the noise will stop, if the oven burner does not light after pilot is being for about 1 minute and a half the safety valve needs replacing

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