The furnace in the garage is started by pressing in the knob and then lighting the pilot. I hold it there and it's suppose to get this thing warm and then the gas comes through and lights up. Then the pilot stays on, and I release the knob and turn it to on. The heater kicks in, and when it hits the right temp, it will shut off. But, it won't come back on because the pilot light goes out. Any ideas why?
2006-10-16 17:31:38 · 9 answers · asked by Ijaz O 2 in Home & Garden ➔ Maintenance & Repairs
the thermocouple might be bad, or going bad. It is the silver or copper wire looking thing that goes above the pilot light. Maybe it needs to be moved one way or another, so the pilot flame hits the first half inch or so of it. Just a guess, these do go bad sometimes. these are just a few dollars and easy to replace, but if it's bad your device will not work right. Turn off the gas valve before you replace it(the main valve on the gas line )and make sure it is in tight before you turn it back on, you dont want a gas leak. You can have a pro do it, but its not hard if you are carefull.
2006-10-16 17:35:35 · answer #1 · answered by Big hands Big feet 7 · 0⤊ 0⤋
Over time, the thermocouple oxidizes. This can easily be solved by first shutting off the gas valve (turn knob on top that says -on -pilot -off). Wait for a while to let it all cool down. notice the silver and copper tube going in, the silver is gas, that copper line that leads to the mini copper tampon looking thing is your thermocouple. Take that out and give it a gentle scrub with a clean dish scouring pad, making sure not to touch the thermocouple with your hands (the oil on your skin is a bad thing for it). Replace it, relight the pilot, let the flame warm up for at least 30 seconds, better if you hold it for 60 seconds, turn the valve back to -on. If this doesn't help, you can replace it. They can be found at hardware stores everywhere and will cost anywhere between $10 and $40. ALSO! Check around for any drafts you can feel. There should be a combustion air bucket (a pipe that comes from outside that is located near the ground near the furnace and hot water tank), if that is creating a draft that can be blowing out the flame, simply build a barrier with some old cardboard/boxes, leaving enough room for the air to still come in, or simply move it further away from the flame in the furnace, but keep it no more than 4 feet away.
2016-05-22 08:09:37 · answer #2 · answered by Sylvia 4 · 0⤊ 0⤋
Is there a draft blowing the pilot light out? Dirt in the opening of the pilot light flame? Does the pilot light go out the same time as the furnace? Turn the furnace on and then turn the temperature down. Watch the pilot light... how does it go out? what color is the flame?
2006-10-16 17:39:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋
There is a thermal coupling that has to sense when the pilot is on, and shuts off the gas if it doesn't sense a flame. You can adjust the thermal coupling so it is being heated by the pilot when the furnace kicks on. You just have to watch it. It may just need to be blown out to clear the flame path to the thermal coupling. It is a real simple operation, you just have to watch it to see why the pilot doesn't touch the thermal coupling when the furnace is on.
2006-10-16 17:39:51 · answer #4 · answered by DallasGuy 3 · 0⤊ 0⤋
The most obvious answere is there may be a draft in the area,or aweak pressure in the gas supply line. But the right answere is
that the termacouple connected to the pilot light is old and defective
2006-10-16 18:07:29 · answer #5 · answered by carol and john wayne 1 · 0⤊ 0⤋
the gas switch for the furnace may be bad. you need at least 2psi pressure of gas to keep the pilot lit.
2006-10-16 17:37:57 · answer #6 · answered by mr.dj 3 · 0⤊ 0⤋
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2016-07-11 11:22:02 · answer #7 · answered by Mercedes 3 · 0⤊ 0⤋
The thermal couple needs to be replaced. Call a plumber or Heat/AC guy.
2006-10-16 17:38:04 · answer #8 · answered by intrigue899 3 · 0⤊ 0⤋
Make sure its not dusty. I use a blow dryer on my heater to clean the dust out.
2006-10-16 17:37:37 · answer #9 · answered by lucy02 6 · 0⤊ 0⤋