The pilot light on my gas fireplace continually goes out. My husband lights it manually and it works fine as long as its on. When it is turned off and the fan also turns off, the pilot light goes out about 5 minutes later.
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Re: Gas Fireplace pilot light continually goes out
You may have a problem with the flame sensing capillary. It may need to be replaced, or it may need to be positioned into the pilot flame better, or you may need a new gas safety valve. Sometime there is an adjustment screw for the pilot which can make the flame bigger or smaller. If will be on the safety valve.
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Your fireplace does have a pilot. It is either millivolt, where you manually light the pilot and use a remote or wall switch to light the logs
or is IPI where it still has a pilot light but the reote or wall switch lights the pilot first then the logs. The second version has a non-standing pilot. In either case, it sounds like a pilot assembly issue. When you "throw the switch", do you hear clicking inside the fireplace? If so and it does not light, you may have a pilot assembly issue. If there is no sound at all, then you may have a bigger issue with the control module. The only sure way to know which is the culprit is to have a certified technician come oput and examine your fireplace.
It sounds like the Ignition Control Module went out, as I've heard the vibrating noise you speak of just before the module "dies." You most likely have the gray Robertshaw control module box located under the fireplace connecting the power to the gas valve. You will need to have a Certified Gas Fireplace Specialist look into this issue and replace, if necessary.
Gas apliances have safety features built into them so you don't blow yourself up. The pilot heats a thermocoupler which tells the gas valve there is a flame, open the main gas to the burner. If you can see the flame area of the pilot look for a round post about 3/16 inch in diamiter. This should be directly in the flame, if not bend the bracket so it is in one side of the pilot flame. The thermocouple is attached to a mounting bracket. This will be held in place by a 1/4 inch hex screw. remove the screw and the capilary tube leading to the gas control valve. Before you do anything, close the main gas supply to the fireplace and disconnect the power to the fan. You may need to semi dismantle the fireplace to get the thermocouple. The gas valve end is a brass 1/4 pipe thread plug. Turn the outer nut and remove without twisting the tube. Reverse this order to install a new one. Besure not to twist the capilary tube, tighten brass nut 1/4 turn past hand tight. Your better heating supply house will have these in stock. Restarting the pilot will take a few tries because the gas was off. Your gas suplier would charge about $75 to fix this. if you don't have the proper tools and it dosen't look pretty stright forward don't do it. You could get dead.
I have a Model 792864B. Before you attempt to light the pilot light - make sure that any wall control switch or remote control for the fireplace is in the off position. Locate the gas supply line. There should be a gas supply valve to turn on the gas supply. The valve is usually painted a different color than the supply line like blue, green or yellow. Open the valve by pivoting the handle to be parallel to the gas line, usually counter-clockwise. When it is closed it is at a 90 degree angle from the supply line. Locate the pilot light assembly - this is the pilot light. There should also be a red or black ignitor button and a black or green valve control knob with the words "on" "off" and "pilot" on it. It may be located inside a black box, mine is marked heatolator, that has a lift off top. Lift off the top of the box. Push in the valve control knob and turn it until the word "pilot" is in line with the arrow (my arrow is red) or indicator line. While pressing and holding in the valve control knob - it presses in about 1/4", press the red or black ignitor button repeatedly (once per second) until the pilot ignites. Once the pilot is lit, continue to hold the valve knob in for about 30 seconds and then slowly release. The pilot should remain lit. If it remains lit, press in and turn the valve control knob to the "on" position. The on/off wall or remote control switch should now light your fireplace. If the pilot doesn't ignite, turn off gas supply valve, wait about 5 minutes and try it again.