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Weil mclain - I have a cga 4spdn boiler. Trying to get it to start for the winter. I thought the technician who inspected it this summer said I only had to flip the wall switch (power to the boiler) to restart it. Near as I can tell, the pilot light is lit, but it is not firing up... I think the thermostats are functioning, but couldn't swear to that. Where should I begin to troubleshoot?

Posted by Anonymous on

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Posted on Jan 02, 2017

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SOURCE: LOW WATER CUTOFF IS CHATTERING ON WEIL MCLAIN

Don't jumper that control out. You likely have some thing going on with the make up water. best i can do with information provided. T

Posted on Jun 16, 2009

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SOURCE: boiler won't fire even though the pilot is lit

Check if the ignition plug works. Upon putting your boiler on, a spark will normally trigger the
the firing. Then, check the ignition transformer if it works. Check the secondary voltage which is between 15000 to 20000 volts to trigger the ignition plug and the boiler to fire. If no spark,
have your ignition transformer replaced to make it work.

Posted on Sep 21, 2009

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Light the pilot light on weil mclain gas boiler


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If there is an electronic ignition rather than a standing pilot then you do not need to light it will light itself if the electronic ignition is bad or if the flame sensor is dirty. If you remove the pilot assembly from the gas train and clean the flame sensor rod with a piece of .0000 steel wool it could help. If not you may want to call a licensed pipe-pitter ( OR plumber depending where you live and the local codes).
If you don't thing you could do it yourself then call a licensed pipi-fitter or plumber. (Gas only has to leak once for there to be a problem so please do call someone licensed if you don't think you could do it your self.), http://www.weil-mclain.com/en/weil-mclain/products-services/
Here is a link to the manufacturer you should be ale to fing your equipment and the install instructions, if you look around .You can download a PDF and print it
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1 Answer

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