Question about Williams 1403622 Gas Compact Heater
I installed a willieams 1403622 gas heater last year, and it operated fine. At the end of the winter season, the pilot valve and supply line valve were shut off. This year, when I turned on the supply line valve and pilot valve, then went through the pilot lighting sequence(several times for several minutes to let gas flow) the pilot would still not light. Any suggestions?
It's probably the thermocoupler. It went out several times on my Williams though it has been working for quite some time now. Anyway, the thermocoupler is the copper tube coming out next to the pilot knob. It goes into the furnace area and has a tip that hangs near the pilot light, measuring temperature and suchforth. Anyway, they go bad and the pilot won't stay lit. Make sure you get the right length (bring it in with you -- normally it's 18" but could be longer).
You may have already fixed this, but I hop this may be helpful.
Posted on Dec 16, 2008
The Pilot indicator will appear to line up with the arrow on the base, and even push in as though allowing gas to flow, but if it is just 1mm out of alignment, no gas will flow. So the solution is to move the valve in the Pilot mode slightly in one direction or the other to see if/when gas flows.
Posted on Nov 07, 2008
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Posted on Jan 02, 2017
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Mar 07, 2011 | Williams 1403622 Gas Compact Heater
You will need to replace thermocouple it's the small bulb in the pilot flame it has a copper tube that runs back to the gas valve here is a manual for that unit it shows the pilot head and thermocouple
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