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. 43501 Answers SOURCE: Hi, The problem is with the thermocouple. This is the metal thing that the pilot flame hits when it is burning.if the flame is not hitting it then it does not get hot enough. Make sure the flame is hitting it.if not then adjust the hood over the flame to get it on the thermocouple. If it is hitting it then replace the thermocouple.for that heater though the thermo is probably and OEM part and may have to be bought from the manufacturer.
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Heatman101 Posted on Nov 07, 2010. 8220 Answers SOURCE: This heater has 2 type gas valves one valve has the thermostat built into it. No wiring needed for that puppy. Looks like this: So I am guessing that one ain't you. Your heater must use a millivolt gas valve with the 2 wire wall thermostat.
The pilot generator does 2 things. It holds the pilot on and it produces voltages that operate the solenoid and open and close the valve when the room thermostat makes contacts. So what goes wrong with these? The pilot generator will sometimes hold the pilot flame but whn the 2 wires are touched together or you tun on the wall thermostat the whole thang just dies. That my friend is a weak thermopile generator.
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The other thang that goes wrong is the solenoid on the gas valve is open and therefore the gas won't come on. Their is also a fuse mounted on there that melts and kills the magnet that the generator holds in for the pilot. If you need further help, reach me via phone at.