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View Full Version : Changed the control board in my furnace, due to water damage. The new w/r replacement


smitty100
May 21, 2013, 05:48 AM
Changed out the control/circuit board on my furnace due to water damage,
The white-rodgers 50a55-843 replacement turns on the blower motor
Even with thermostat wires disconnected. And will not turn on my a/c unit
When put on.