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Vent question

Attached is a primitive diagram.

All 3 rooms are on the same floor. Room B's vent is not blowing as much cool air as Room A's vent. Ive closed the vents in Room C and A. And still no luck. The force of the cold air being blown from the vent in Room B does not change. However, when i close B and A, one can notice the change in the pressure/amount of cold air coming from C's vent. Same thing is noticed for A's vent when C and B's vents are closed.

Any help is appreciated.


Re: Vent question

I'm guessing this is an issue with A/C ...... Where is the air handler and ducting .... in a basement or in the attic?

How are you closing the vents?

Re: Vent question

They are located in the basement.

I am closing the vents by using the small lever on the side of the vents. The vents are located on the ceiling.


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