Question about Williams 1403622 Gas Compact Heater

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Pilot Light won't stay lit on wall furance

New Wall Furnace. I connected the thermostat and tried lighting the pilot light. Held pilot button in for a minute or more and it still goes out when I release the button. Tried many times. I see thermocouple replacement mentioned many times here on this board but this unit is brand new. Can the wiring I did for the Thermostat have anything to do with it?

Thanks for any help

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  • Bruce Smith Jan 27, 2009

    The person I was trying to help to get it to work wound up calling someone who knew about the furnace and they got it going. No sure what the fix was.

    Thanks for your input


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The low voltage wiring and the thermostat has noting to do with the pilot function of the wall furnace, check to see if when you have the pilot lit manually, while holding the button in does the flame impinge on the thermocouple and does the flame try to wrap around the thermocouple? if not the thermocouple and pilot flame need to be adjusted so that it impinges on the TC, if it does have a good flame impingment, then you probably have a bad TC from the factory, call them and have them send you a new one if still under warrenty.

Posted on Jan 20, 2009

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Usually you need to hold the button for pilot lighting for 60 seconds. You can use a meter to check that it's generating enough power. The thermocouple has to be in the pilot flame properly.

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