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

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

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

Williams Furnace Company P322398 Pilot Generator ...

https://williamsfurnace.parts > williams-furnace-compan...
Natural Gas Model numbers include 1403822, 2003822 and 3003822, and can be used with all altitude options. Click here to download the replacement parts lists ...

US$65.55 · ‎In stock

https://www.searspartsdirect.com/model/ydhrgebuqn-001203/williams-3003622-wall-heater-parts

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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.

Where the pilot is unscrew pilot tube from pilot assembly and inside there it is

Found this link to a manual for the Williams Wall Heaters...
Model 1043621.05 is LP Gas Model Model 1043622.05 is Natural Gas Model
http://www.hammerwall.com/Download_Manual/3249/
Temperature is set using a thermostat as explained in the above manual.
Use IE Explorer Browser, manual does not display in Google Chrome as a number of other PDF files don't either, must be a bug.

sure. just make sure u use dual wall 'b' vent pipe n be 24" from a door

If you have already changed out the thermocouple and the pilot goes out when the burner goes out, it leads to reason that the gas valve has a weak magnet or that the pilot is dirty. The cheapest thing would be to remove the pilot assembly and clean out the orifice. If it still drops out, you will need to replace the gas valve.

can you manually fire the unit w/o the thermostat by shorting 2 of the 3 wires, there may be more wires than that, but you should be able to fire it on 2 to 3 wires alone let me know it sounds like something is floating voltage wise on the unit

Find the gas valve and turn it to pilot. (Or light) Use a long reach lighter. Light the lighter and press the knob in. Light the pilot and continue to hold the knob in for about 15 seconds. When you release it, the pilot should stay lit. If it doesn't, you need a new thermocouple. That's the small tube that the flame touches when the pilot's lit. They're inexpensive and usually not too hard to replace.

I've replaced a Williams wall gas heater non-electric. The thermostat is connected right and mounted on the wall. But, there's a thick black copper wire on the side of the furnace tagged thermostat. I don't know what to do with it? Where do you connect this wire? When it touches the top screw of the three screws running vertically(where the other wires are connected). The burner lights up and stays on, even if you play with the wall thermostat. Touching the other two screws doesn't do anything. Now, the manual talks about connecting it to the venting wires? Extra wires coming from the top or maybe somewhere else in the wall? I've left it connected to the first screw, ran the heater. But, it never turns off? Any suggestions? Thanks