Question about Williams 2509612 Ceramic Mid-Size Heater

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Pilot light on but heater won't come on when I turn up the thermostat

I'm wondering if it has something to do with the electric ignition. We've only had the heater a few months and it just stopped working this weekend. With our previous heater we were able to have heat even of the electricity went out.

Thanks for your help, Janice

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  • 7 more comments 
  • janicevilla Dec 07, 2007

    Thanks Buffalo12980,



    Our pilot has stayed lit this entire time but it is not igniting the heating element. We had a tech come out and look at it and he said it was a valve problem that would cost us $350. just in parts. We are looking ofr old receipts to see if we can return the heater for a new one as we have only had the heater a few months.



    Thanks again, I will pass this email on to my husband.



    Janice

  • janicevilla Jan 04, 2008

    We REALLY appreciate your help. We are going to try this today. Thank you! Janice

  • Anonymous Nov 29, 2008

    Thanks for the help, but telling me someone else has the same problem does not really help me at all.

  • nyj91302 Dec 17, 2008

    pilot light on but heater won't come on when I turn up the thermostat ,Please notify you when a new solution.

  • truecrow Dec 17, 2008

    i have the same problem

  • Anonymous Dec 20, 2008

    I don't see the switch.

  • Anonymous Dec 20, 2008

    same

  • robbyt3 Jan 15, 2009

    Can you be more clear as to where that button is? If anyone had a picture that would be great.

  • robbyt3 May 11, 2010

    Can you be more specific as to the location of the button? If anyone had a picture that would be great.

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Williams heaters have a manual reset for the spill safety switch. If the heater is not venting properly it will trip this switch and shut off main burner function. The switch is on the left side of the cover inside the small vent. You can use a screwdriver to push the button back in. If the heater then works you will need to get the vent inspected to make sure it is connected properly and there is no blockage.

Posted on Jan 03, 2008

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The heater obviously uses a standing pilot. in the pilot flame is a copper tube. this is a millivolt generator and is used to sense a lit pilot. it is a small dc generator that is connected to the pilot light valve. its function is to create a small voltage to energize a small electromagnet inside the main valve/pilot valve. when there is sufficient voltage present, it pulls in a magnet connected to a very small valve in the pilot gas line. this keeps the pilot valve open. when the flame sensor malfunctions you will get a pilot flame but when you release the button the flame goes out. replace the flame sensor and you should be back in business.

Posted on Dec 07, 2007

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