Wednesday, 12 January 2022

Gas Boiler doesn't work after frozen pipes burst and were repaired

I have a Williamson GWA -070 58btu gas boiler. It was working fine. Recently some pipes in my baseboard heaters froze and burst. I fixed them and filled the loop with water again. But I can't get the boiler to fire. It has an intermittent pilot ignition system. I don't see any pilot light through the hole. There is 120V to the load-side of the disconnect switch. I'm an electrician but not knowledgeable enough to troubleshoot HVAC in this case.
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source https://hvac-talk.com/vbb/threads/2235497-Gas-Boiler-doesn-t-work-after-frozen-pipes-burst-and-were-repaired?goto=newpost

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