Gas Fireplace Problems - Won't Light or Stay Lit

[filper]

I can't relight my pilot. I've tried several times and although it does ignite, when I release the the button, the flame goes out.

It once stayed on for about a minute.

I have always turned off the pilot during the summer months as even the pilot seemed to radiate quite a bit of heat.

The fireplace is only 6 years old.

Any ideas ?

[PakMan]

Hi,
I've had this on and off again. Have you checked to see if there is enough gas going through. On my gas fireplace there is another valve that controls the amound of gas going to the fireplace which in turn controls the amount of flame the fireplace is producing.
I re-lit mine a couple of days ago and I was surprised that it stay lit. I held in the pilot for 30-45 seconds then moved the switch to on.
Voila!

[filper]

I should have titled the post 'Won't Stay Lit'... I tried to change it.

I never turned off the gas supply. The pilot just goes out when I release the knob.

[CamG]

Sounds like it could be a faulty thermo-couple.
Do you have a voltage tester ? The thermo-couple should be giving off a small mV value when the pilot is on... I can't remember exactly but somwhere around 20mV.

[MACJ]

Originally Posted by CamG

Sounds like it could be a faulty thermo-couple.

Thats most likely the problem. Better now to replace it than in January. The part itself is not expensive but if your not comfortable changing it ( I wasn't ), then your looking at probably $100-$125 for the part and a furnace repair persons labour.

[filper]

Originally Posted by MACJ

Thats most likely the problem.

Is that something I could do myself ? Cost ?

[57]

The gas in the line often goes bad (air ingress or whatever) if not used for a while. Simply leave your finger on the pilot button a little longer and you should be fine and the pilot will stay lit when you release the button.

If that doesn't work, then the other issue is likely the cause.

[filper]

Originally Posted by 57

The gas in the line often goes bad (air ingress or whatever) if not used for a while. Simply leave your finger on the pilot button a little longer and you should be fine and the pilot will stay lit when you release the button.

If that doesn't work, then the other issue is likely the cause.

I've tried at least 10 times and held the button for 2 minutes twice...

Thanks for changing the title for me .

[otown47]

Probably a dumb comment, but make sure the control knob is set to PILOT and not RUN....

[57]

Actually, you have to turn it to run (or on) when you release the button.

[otown47]

Originally Posted by 57

Actually, you have to turn it to run (or on) when you release the button.

yes once the pilot light is stable....

[phringe]

Its most definatly the thermocouple/powerpile. If you follow it back, and it splits to 2 leads, its a powerpile. If its copper looking with a nut on the end, its a thermocouple. If it doesn't stay lit after 1 minute, change it.. Either way, if your at all 'unsure' get a service man to do it for you.. Don't try to adjust the 'gas' yourself..

[Mexicanuck]

Do you have a wall switch for this fireplace? I recall having a similar problem a few years ago when we had a gas fireplace in a different home. Our problem started after about 6-8 years.

The problem turned out to be with the wall switch. When I investigated, I learned that this micro-amp (or some such designation) switch was going to cost some exhorbitant price, like $50 or $100 or something.

Then the staff at Home Depot told me I could use a regular wall switch. He said it would have to be replaced every four or five years, but it only cost something like $5.00.

It turned out that the original switch was the inexpensive kind too. I put in the cheap switch and everything was fine for as long as we lived there.

[CamG]

If you are comfortable doing it I would check the thermo-couple, However here is one more thought...
Has the fireplace been hit or knocked with anything heavy like furniture ?

There is a limit switch on the outside of most units that is pressed between the fireplace and the wall / bracing holding the fireplace. If the fireplace is hit hard enough to move it, the limit switch will open. This opens the circuit to the coil on the gas valve and will not let it close electronically, only manually, which is what you are doing when you try to start it. This limit switch is a safety switch incase someone drives into the side of your house.. it shuts off the gas immediately to turn the fire place off….

This happened to my fireplace about 3 years ago and it took me almost a day to find the darn switch. There is probably a jumper on the front panel that you can short out to test this switch, however you would probably need the schematics for your fireplace to find it.

If you are not comfortable doing any of this I would call in a professional.

CamG

[ht_addict]

Have you take a little piece off steel wool to the tip of the pilot and remove any excess build up of carbon there maybe? You could have some blocked holes.