Question about Williams 1403622 Gas Compact Heater

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I have a William Furnace model #1403622 and the pilot won't stay lit. I keep reading it may need a new thermocouple but where do I buy it and how much does it cost.

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Hello, you can buy a thermocouple at any heating and cooling store, they cost between 7 and 15 dollars depending on the length of it.

Posted on Mar 25, 2011

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I AM WORKING ON A COZY W501E WALL FURNACE AND CANT GET THE PILOT TO STAY LIT. i HAVE CHANGED THE GAS VALVE, THERMOCOUPLE,AND THE SENSOR FOR THE HIGH LIMIT. THE PILOT WONT STAY LIT.


Pretty much the only thing that will do that is the thermocouple not generating enough voltage for the valve to say it's OK.
Usually you need to hold the button for pilot lighting for 60 seconds. You can use a meter to check that it's generating enough power. The thermocouple has to be in the pilot flame properly.

Check this video:
https://www.youtube.com/watch?v=suen7QlJl4o

Gas furnace will not light Thermocouple test with the multimeter

Or see this site:
How to Test Thermocouple with Multi Meter Heating and Cooling

Feb 11, 2015 | Cozy Heating & Cooling

1 Answer

Pilot on furnace wont stay lit


Sounds like the thermocouple is shot

Nov 09, 2014 | Dayton Gas Furnace Heater

3 Answers

Pilot lite won't stay lit


Thermostat flame sensor. Do you see a little rod next to the pilot? That is what tells the main gas valve that the pilot is lit and it is safe to give gas. Easy swap, and you can usually just pick up a generic one.

Apr 14, 2013 | Heating & Cooling

1 Answer

When I tried to light my furnace, the electrical wires from the thermostat don't spark all the time, therefore my furnace won't stay lighted. What can I do to fix this?


Is this an older furnace where you have a pilot light? Are you saying the pilot light will not stay lit? If thats the case then likely you need a new thermal couple. That is what the pilot light keeps hot while it stays lit. It is a safety device that is there so your furnace will not come on if there is no pilot light present. Very common. Hardware store item. Need Furnace's make and model #'s.
If this is an electronically controlled furnace, you will need a service call.

Jan 13, 2012 | Heating & Cooling

1 Answer

We just purchased a Williams 1403622 natural gas heater and installed it yesterday. However, the pilot light WILL NOT light. Can you help?


If you mean that the pilot light does not stay lit, you could have a bad thermocouple or a loose connection at the gas valve. Make sure the flame is against the thermocouple. If you mean that the pilot won't light at all, bleed out the gas line a bit more.

Mar 07, 2011 | Williams 1403622 Gas Compact Heater

1 Answer

On my williams wall furnace Model # 1403622 the pilot wont stay light, how do i fix this?


Hi,
The problem is with the thermocouple.... this is the metal thing that the pilot flame hits when it is burning....if the flame is not hitting it then it does not get hot enough...

make sure the flame is hitting it....if not then adjust the hood over the flame to get it on the thermocouple...

If it is hitting it then replace the thermocouple....for that heater though the thermo is probably and OEM part and may have to be bought from the manufacturer...

heatman101

Nov 07, 2010 | Williams 1403622 Gas Compact Heater

1 Answer

Pilot light won't stay lit


If your pilot does not stay lit it is either thermocouple or gas valve. You acan pickup a thermocouple at a hardware store or at Lowes or Home depot. Rus

Dec 05, 2009 | Williams 1403622 Gas Compact Heater

1 Answer

Pilot Light won't stay lit on wall furance


The low voltage wiring and the thermostat has noting to do with the pilot function of the wall furnace, check to see if when you have the pilot lit manually, while holding the button in does the flame impinge on the thermocouple and does the flame try to wrap around the thermocouple? if not the thermocouple and pilot flame need to be adjusted so that it impinges on the TC, if it does have a good flame impingment, then you probably have a bad TC from the factory, call them and have them send you a new one if still under warrenty.

Jan 20, 2009 | Williams 1403622 Gas Compact Heater

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