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A few days ago I noticed that the outdoor fan was running slowly in the heat mode. Later checked and found that it does run in the A/C mode, Fuses are good

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  • Howard Edmonson Apr 12, 2011

    The solution misunderstoood the problem. The problem was a fuse and low Gas

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I will reply soon.

Posted on Apr 09, 2011

  • Aloke Das Apr 09, 2011

    You may not have any problem with your Air Conditioners, because the heat fan's speed is slower than the cooling fan. Usually they are designed to run on slow speed in the heat mode. your AC should work just fine with the factory wiring, but you can increase the speed, follow the wires from your blower motor to the control board. They should read something like this.... heat, cool, fan, spare. Now look at your wiring diagram located inside one of the covers of your furnace. It should tell what colors correspond to speeds. put a higher speed wire on the heat terminal on the board.

    You may not have any problem with your Air Conditioners, because the heat fan's speed is slower than the cooling fan. Usually they are designed to run on slow speed in the heat mode. your AC should work just fine with the factory wiring, but you can increase the speed, follow the wires from your blower motor to the control board. They should read something like this.... heat, cool, fan, spare. Now look at your wiring diagram located inside one of the covers of your furnace. It should tell what colors correspond to speeds. put a higher speed wire on the heat terminal on the board.

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