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Posted by Mike on October 19, 2006 at 08:51:27:
I have 3 zones of heat and the downstairs is not turning on. I have a Dunkirk Boiler Model #WPVSPB -4D. I thought it was the thermostat so I removed the cover. There are 3 wires RED, White & Black. A friend of mine suggested to touch the red & black, boiler still wouldn't turn on. Does anyone know what might be the problem?
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