Question about Coleman 5040-751 BackHome Open Flame Patio Heater

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Patio heater tip switch doesn't let gas through

I can get the pilot to light by pushing in but as soon as I release the valve it shuts off. I took it apart and the valve routes gas where its supposed to with the tip switch coil removed. With it installed there is no gas to the main valve or pilot unless the valve is held in. The switch and weight itself appears to be fine and the coil is not frozen but the coil does not stay open.Looking at the wiring it looks like pressing the ignitor is supposed to supply current to open it but I can't figure out what is supposed to keep it open since it is spring loaded and there is no power to keep it energized in the heater.

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  • Anonymous Nov 23, 2008

    I moved the heater and cannot get it to light now. I think I tipped it too much.

  • skiplawwill Feb 07, 2009

    I can get the pilot to light by pushing in but as soon as I release the valve it shuts off. I took it apart and the valve routes gas where its supposed to with the tip switch coil removed. With it installed there is no gas to the main valve or pilot unless the valve is held in. The switch and weight itself appears to be fine and the coil is not frozen but the coil does not stay open.Looking at the wiring it looks like pressing the ignitor is supposed to supply current to open it but I can't figure out what is supposed to keep it open since it is spring loaded and there is no power to keep it energized in the heater.

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There is a thermocouple that protrudes up into the flame. If the thermocouple is bad or out of adjustment it will not produce enough electric current to lock the red knob down allowing the heater go into operating mode. This thermocouple is a safety device that senses weather there is a flame or not. If no flame no heat don't turn on. If heat then there must be flame OK turn on. The thermocouple should protrude into the flame about an inch to heat it sufficiently to trigger the valve if it doesn't adjust it into the flame more. If adjusting does no good replace it. Take the old thermocouple to the store you bought the heater at and get a replacement. If you cant get it there almost all hardware stores or heating stores will have generic replacements that will also work.

Posted on Oct 23, 2009

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It sounds like what you are describing is a bad pilot saftey device there is a device called a thermacouple when heated it creates a small electric current which lets main valve know its ok to open we have a pilot flame.the thermacouple normally screws onto gas valve it is 2 spade connectors it is a powerpyle system

Posted on Apr 15, 2009

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