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No heat boiler won't turn on - McDonnell Low Water Cutoff ? Switch ? Override ?
Hello - I have a steam boiler that won't turn on right now, it is acting like it has no power. Last time this happened the technician cleaned the low water cutoff from the outside by sticking a wire brush in the LWC drain to get it going again - I tried that but this time no luck.
In attempt to fix it, I removed the float from the low water cut off and cleaned it. I reassembled it and verified that it can move up and down freely but unfortunately when I put everything back together I still get no power.
Is there a way to override the switch to verify that it is the switch or to see if there is another issue? Is it as simple as jumping the two wires together? Only the top two screws were connected to wires on the switch. Attached are photos - any help is greatly appreciated.