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How can I troubleshoot air flow problems with my central heating?

asked by TeresaL (143)

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Tags:  hvac  troubleshooting

answers

Make sure nothing is blocking the inside vents(e. G. Chairs, tables, beds, etc... ) and outside vents (e. G. Leaves, debris, etc.. ). Check the filters. A dirty filter may need to be changed. Other vents (like cold air ones) need to be checked for things blocking them, too. These are not connected to the ducts.

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posted by Mike26 (12)
5 votes

Set the thermostat temperature to above the room temperature. The furnace fan should start running. Check that the furnace air filter(s) is clean. Open all exhaust registers. If the fan is turning normally but little air is flowing, check the heating coil for clogs and check the ducting in the attic or under the floor for leaks or pinches.

5 votes

To troubleshoot air flow problems with a central heating unit one needs to close of all of the vents and then reopen them one by one to check the air flow. Sometimes a vent is clogged and restricts air flow.

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posted by chris70 (293)
4 votes

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