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Posted by MIke on October 19, 2007 at 10:38:27:
I have a dunkirk boiler Model #WPVSB-4D and have 3 zones and their is no heat downstairs. I removed the thermostat cover and connected the red & white wires. This is what a friend told me to do. The are 3 wires that were connected to the thermostat. Does anyone know what could be the problem?
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