Hi , you can try and pull the panel on the bottom of fireplace out and check the adapter in fireplace. Sometimes they go bad. When you open in also check to see if there is an adapter plugged in and a option to use the battery operated function. If this goes bad the pilot will not stay lit.
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Thermostat flame sensor. Do you see a little rod next to the pilot? That is what tells the main gas valve that the pilot is lit and it is safe to give gas. Easy swap, and you can usually just pick up a generic one.
The pilot flame must touch (burn) the tip
oqef the t-couple to hold the magnet in the gas value open.make sure the pilot orifice (hole) is clear.the pilot pressure (in the tube) is factory set full open & can only be adjusted down (less). Also check the gas **** didn't get closed or turned half way.? Assuming its not the t-couple. If all is good & it still won't stay on. Replace the gas value.!
sounds as though you need to get the thermocouple(copper wire that sits in the pilot flame) replaced, check first to make sure it is tight at the gas valve end, as they can loosen over time due to expansion and contraction.
It sounds to me like you have a bad flame sensor.Luckily most of the time they are pretty easy to change. If you have your manual it will show you the physical location of flame sensor. Usually 1 or 2 screws holding it in place. Remove screws and unplug wires to remove sensor.Install new sensor and hopefully you're in business. Thank you.
Ventless Gas logs, Vanguard, VS30PR. Propane gas
Pilot light stays lit various times, sometimes for several days then other times for a few minutes. Lights best when temp outside is below freezing. Pilot flame appears to receive too much air. How do you adjust the pilot flame? Is this done using two screws marked A & E? Do you have suggestions?
You will need to find the gas valve. Open up the lower section of the fireplace and look foe a small cube of aluminum with a knob on it that says On-Off-Pilot. Turn the knob to the Off position by lining up the word with a small dot or line indicator on the body of the gas valve. Then turn the knob to the Pilot setting. You will know when you are in the correct setting because you will be able to depress the knob into the gas valve body. Hold the knob depressed and click the larger red button. It will snap so don't be startled. Continue to hold the knob in while looking between the logs for a blue flame. If you don't see one, keep snapping the red button. Once you see the flame, continue to hold the knob depressed for 30 seconds or so. Release the knob and make sure the flame stays on. If it does not, repeat nthis procedure and hold down the knob for 45 seconds. If the flame continues to go out, you need a new thermocouple. Once the flame stays lit, rotate the knob to the On setting. The main burner should start within 15 seconds.
the heater makes use of a millivolt generator which generates a small dc voltage (500-750mv) that is applied to the pilot valve of your main gas valve. when you light your pilot, the flame bathes the generator with a flame. after a delay you release the pilot button. if the generator is working, the pilot valve will stay lit. if the generator is not working the flame will go out as soon as you release the pilot button. change the generator.
there is a probe that is in the one of the flame... This once heated builds up enough pressure do to the heat to keep the shut/off valve open... (reason, if the flame went out the gas would continue to flow) this "thermocouple is replaceable !!
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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.