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William forshaire 435 runs well for awhile until

My williams forshaire 435 top- vented wall furnace runs well for a short amount of time. The electronic pilot starts the burner and the fan come on shortly. Then the fan shuts off or burner shuts off. It will re-light and fan will re-start. It will continue this for quite ahwile with either fan shutting off or burner re-lighting until it eventually stays on until the desired temp is reached. The unit is propane fired and has a intermittent ignition (not standing pilot)

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Try cleaning your thermocouple,and resetting it where was, which is located at the pilot flame. this should solve your problem.

Posted on Feb 23, 2010

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How do I light a Williams gravity vented wall furnace model 5009622


they usually have a manual perazo ignitor simular to a gas barbeque.. put the gas valve on pilot, depend the knob and hold it, depends the igniter epeatly until the pilot litghs, hold the knob in when u see the pilot flame for about one m,inute , release the knob, the turn the knob to the "on" posistion

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Williams wall heater 2509622. How do I keep the pilot on? It tends to turn off after it reaches the desired temperature.


WILLIAMS 2509622 OWNER'S MANUAL Pdf Download.

www.manualslib.com > Brands > Williams Manuals > Furnace > 2509622
2509622; 2539622; 2559622; 3509622; 3539622; 3559622; ... WHAT TO DO IF YOU SMELL GAS: ... Williams furnace co. direct-vent wall furnace owner's manual (24 pages) ... Caring for Your Furnace ............24-25 Locating Wall Furnace and Thermostat ........6-7 Learn how to keep your new Williams Furnace operating.

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[PDF]Monterey Installation Instruction Manual - Home Depot



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Williams direct-vent wall furnace gas pipes instalation process


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Feb 19, 2013 | Williams 14,000 Btu/hr Direct-Vent Furnace...

1 Answer

One of the thermastat wires attaching to the williams heating on the wall became loose from the screw and didn't seem to be making little of no solid contact like a car battery might due. i tightened the...


If it touched a grounded metal surface, it is possible, leave the wires hooked up at the furnace, pull the thermostat off of the wall, disconnect the 2 thermostat wires, and then twist them together, the furnace should fire, if it does, then the thermostat is shot. Replace the thermostat, usually when there is a short, it burns out the heat anticipator on the thermostat.
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I have Wiiliams direct vent wall furnace. I smell gas only when pilot is on and burner is not on. It does not smell when it is fully running (burner is on)


Dear Alex191: I am shocked and amazed that the Williams heater company is STILL knowingly and willingly selling faulty direct vent gas heaters. My problems took place in 1988! I bought a 30,000 BTU Williams DIRECT VENT from The Home Depot. I took the time to remove window sashes and run gas line to the Williams heater that I had placed in the window aperture. I was glad to finally have heat and be able to heat the area of the house where I stayed. Then I began to smell gas when the Williams was OFF. I traced it to the area where the pilot light gas tubing entered the combustion chamber. I removed the Williams unit and replaced it with an identical make and model and the SAME THING HAPPENED!!! I sat on my bed and almost cried. I had the gas company come out and they labled the problem as a "fuzz leak". The warranty repairman came out and had no idea what to do. Tightening the retaining nut did nothing. I called Williams and even back then they said that they were aware of the problem. They called me back and wanted to send me a part and asked me, "Can you work on it?" I returned the Williams and bought a Perfection-Schwank CONSOL heater that burns the air in the room and vents horizontally to a 4 inch vertical gas vent and was very satisfied with it. When they went out of business I bought an "Empire" brand gas heater. I don't know if I'll ever buy another direct vent heater from anyone. I will be glad to write an affidavit should you decide to suit the Williams company.

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1 Answer

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I have a Williams top vent gravity wall furnace (model 5009622) and I had the same problem. I had to take the cover off the furnace -- screw on top and two at the bottom (open the access door and there is one screw on each side) to get to the reset button for the vent safety shutoff system. On my furnace it's on the left side toward the top of the unit. I pressed the little red reset button and it's been working ever since. If your furnace is properly installed and doesn't have bird's nest in the chimney, it should work fine. Good luck!

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