Need to turn on pilot light of Williams 3003622 serial # 400518D

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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you relight it ,,but it is better you are lyning down to see where to light it,,,but some have a red botton that you push to relight it ,,,like a bbq grill it makes a spark and when you turn the control knob on pilot to light it

I solved my problem by hiring a plumber. Williams website is so difficult I couldn't even get a part number. Its all about selling something by way of you guys. Nothing personal to you, Williams is a company that doesn't want much to do with a customer after they sell a product.
LB

Lets start with safety. Check your vent pipe for obstructions, mainly outside at the vent cap. The safety of this unit will not allow it to operate if there is anything blocking the vent. If all is OK, then next we will light and observe the pilot with it on the pilot setting on gas valve. The pilot flame should consume the tip of the generator point by 1/2 to 5/8". If it does not, then screw off the pilot adjust screw cover on the gas valve. This is clearly marked on the top of the valve. Inside you will have a much smaller screw. Turn it counter clockwise to raise the pilot level, clockwise to decrease. Never consume more than 5/8" of the generator tip. Hopefully your problem will be resolved here at this step. If however it is OK, then take a millivolt meter and read the generator millivolts, at the gas valve with the thermostat contacts closed. It should read 140 millivolts. You need this much power to properly operate the heater. If it is lower than 140, then replace the pilot generator....Rob Just a note...Do not remove or take apart any part of the Gas valve, other than the pilot adjust screw cover...Good Luck.

THE flame from the pilot should shoot past the thermo-couple and heat this up and make a small amount of mili- amps to prove the pilot light is lit. ..So if the flame doesn,t go past the thermo-couple it won, make mili-amps or its tme to change out the thermo-couple, They only cost lest than $8:00 and you can change it!

yes clear the ice and clean the pilot assembly sounds like the flame is being retarded by a dirty pilot orifice

openthe inspection cover turn on and press ignition switch if this is not working clean the jet

You will first need to turn the control knob to pilot. Then depress the control knob button and hold it. Then press the push button piezo igniter several times until pilot lights or open pilot inspection cover and manually light pilot with match/lighter. You may need to hold the control knob for at least a minute. Then release the control knob and if the pilot stays lit then turn the control knob to on. If it does not light then repeat the process again.

BY THERMISTOR, ARE YOU MEANING THERMOCOUPLE, I.E. WHAT YOUR PILOT LIGHT IS HEATING? IF SO, COULD BE WEAK AND NOT GENERATING ENOUGH VOLTAGE TO STAY OPEN, SHOULD BE BETWEEN 10-25 MILLIVOLTS DC, WHICH CAN BE TESTED AT THE INTERRUPTER LEADS. YOU CAN ALSO BYPASS THE LIMIT DISC TEMPORARILY TO SEE IF THE UNIT STAYS LIT, REPLACE IT IF THE UNIT RUNS.