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I have an intertherm furnace m1m, and the pilot light wont turn on, the chamber is getting gas, and the glow rod wont light up, it did for like a little bit, then the gas wasnt getting to it.
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Burner continues to burn until thermostat stops calling for heat
By your description, I would polish your flame rod, it will be a metal rod that is insulated from the bracket that is screwed to the furnace case and it will have a single wire attached to flame rod,
The tube is gas supply for pilot. You have to make sure the thermocouple is in the flame at least half way and make sure its tight in the gas valve. There should be a small silver plug on the gas valve near the pilot supply tube. You can pop the cap and adjust the height of the pilot flame a little. Can you tell if it has a flame rod in or above the flame? If it does You can remove it and clean it with steel wool.
Make sure the gas valve is turned to the ON position after you had it in PILOT position. Also check the thermostat low voltage wiring @ furnace...jumper the Red & White wires to bypass the thermostat temporarily. Make sure there is 24 volts on you low voltage circuit.
Hello, if the Furnace is a standing pilot then turn the knob on the gas valve to pilot, you will hear a hissing sound then use a match or a lighter to light it at the thermoouple. Hold the knob on pilot for about 30 seconds and then turn the knob to gas and burners should ignite.
The system most likely just needs to be cleaned thouroghly. The burners, orifices, ignition assembly and flame sensors get diry, rusty, and contaminaterd. That causes low gas flow, and improper flame pattern. The othe possiblilty is a cloged or failing gas valve.
Just to make sure you are trying to light the pilot, from the gas valve follow the small diameter pipe (1/8") to the pilot assembly. Where you should be placing your flame is above that point. Now with the gas valve knob turned to the Pilot marking, depress the know into the gas valve. Light the pilot. Check to see if it is lit and remain holding the knob in for 30 to 45 seconds. If the flame goes out as soon as you let out the knob, you will need to replace the thermocouple.
if there are two wires to gas valve check voltage between these two wires while the furnace is going through a start up if you never get a call or voltage to valve your control board is bad, if you are getting voltage ,your valve is bad
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