20 Most Recent Williams Wall Heaters: 30,000 Btu/hr Direct-Vent Furnace Natural Gas with Wall or Cabinet-Mounted Thermostat 3003622 Questions & Answers

Question moved from Misc. If it is brand new it is under warranty. Your gas registered installer should have seen it fully working before he left. https://www.google.com/search?q=Williams+direct+vent+wall+furnace+3003822%2C+pilot+goes+out+when+thermostat+turned+on ..

Possibly the 36th week of 2006 or 6th week of 2001.

The smallest pilot orifice is used for LP. Make sure you read the instructions thoroughly. Usually the gas valve pressure regulator is disabled and the burner orifices are also changed. Good luck and hope this helps.

bad 2 speed relay

Yes it sounds like it does. There should be no carbon monoxide in the environment. I am sure you know how dangerous CO is? Can your gas utility company or a registered gas technician to check it. The heat exchanger should be a replaceable part.

That probably means too much fuel or not enough air for correct combustion to take place. I would check its settings.

The switch you are talking about is called a roll-out or klixon high temperature limit switch. The over heating can due to a clogged flue vent, over firing from gas pressure being to high, etc. More information is needed like the model number, age, etc.

Hi, the next best thing to do would be to submit a quote to an hvac company and put a test valve that you've found within the quote. The company might then update you with the true replacement valve model if your valve is incorrect. Or you can reach out to a sell of your heating product on ebay and ask them if they can sell you that valve or any compatible replacement. Thank you.

Please, never bypass safety features. They are made to cycle and will still cycle if you bypass until it locks out on overheat.

As long as it functions to ur needs. Search utube or pinterest for maintenance videos. Ur library sec600 has repair manuals

have you had gas pressure checked?

When the main burner turns off, does it make a whoosh or pop? If so, this would be the issue causing the pilot to be disturbed. And have you tried to adjust the pilot/thermopile strength, if possible? A stronger pilot may help. Now if the main burner slowly goes out, and the pilot also slowly goes out, and also slow to ignite, and you've replaced about everything else, it may be the gas valve itself that has/is giving up. Gas is impure and causes a sticky residue. And if the main burner is "slow to act", this tells me the piston that's inside the valve is slowly opening or closing, and may be the reason the pilot is acting up. Make sure you check the outlet to your flue pipe also for obstructions. If the unit doesn't vent properly it can have more heat in the flue. That heat can have a downward rush when the burner goes out, kinda like forcing air through a clogged tube. And when you quit forcing the air, some of it comes back at you. Before condemning the valve try to check all else as you have done with the thermopile and such. Please work safe and I hope this helps.

See if it visually the same as what you have. All parts for yours are obsolete.

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I take it you are looking to buy a new valve ? if so just take picture of it and take it with you .

https://www.ecomfort.com/Williams-3509822/p67976.html https://www.bakerdist.com/williams-furnace-3509622-monterey-gravity-top-vent-furnace--78f946c These are the spec sheets it mostly in the height width depth and 9622 can be double sided do 2 rooms

Thermostat problem not coming on on temp fall bridge out stat and see if it lights

check to see if the little fan near the pilot is running. You should hear the burring of the fan when you try to light the furnace if you stand near. if you can't hear the fan running, pull off the cover check the fan for debris, rust, or the motor may have stopped working. Check the fan should be your next step.

Most likely the safety thermocouple has failed though it is possible the bulb or the pilot light has slipped out of position and the pilot flame is no longer heating the bulb.

Check flame sensor is clean check connection to thermocouple , check thermocouple is not brunt out at the tip