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11-17-16, 12:49 PM
Replies: 15
Views: 7,147
Posted By SeattlePioneer

<<Once your furnace is working again don't throw...

<<Once your furnace is working again don't throw away the old control board. If you're at all handy with a soldering iron replace the HSI relay on the board & put it aside for a spare. The high...
10-27-16, 12:20 PM
Replies: 15
Views: 7,147
Posted By SeattlePioneer

When the thermostat calls for heat, it switches...

When the thermostat calls for heat, it switches on the inducer motor. When the inducer motor comes up to speed, the pressure switch closes. When the pressure switch closes, the circuit board...
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