Ask Experts Questions for FREE Help !
Ask
    jmarks1's Avatar
    jmarks1 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Oct 21, 2009, 09:00 AM
    Air blowing through vents when fan and thermostat is off
    I have a heat pump with central air and electric heat options. The thermostat is off and the fan is off but I have air constantly blowing from all vents. Why and how can this be happening ?
    hvac1000's Avatar
    hvac1000 Posts: 14,540, Reputation: 435
    Heating & Air Conditioning Expert
    		  
    #2

    Oct 21, 2009, 09:54 AM
    If the blower is running then it should not be with everything turned to off.

    If you have an electric furnace the problem could be

    A defective heat sequencer
    A defective fan blower relay.
    Improper or shorted thermostat wiring

    You will need to track down the problem with a meter.
    The wiring diagram is located on the inside of the blower access door on the inside unit.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Nothing is blowing through the vents, ac or heat [ 2 Answers ]

My air was working fine. But I when came home the other day nothing was blowing through the vents. And the pipes to the ac were frozen. All the filters were clean in the furnace and in the ac. We checked all the breakers in the house and shut everything off and turned it on again including the...

A/C unit running no air blowing from vents [ 2 Answers ]

Ouside A/C unit running but no air is flowing through inside vents

Air not blowing from all vents [ 2 Answers ]

Hello, I just found this site so please excuse me if this question has been addressed before. I have a refrigerated air unit. I noticed today that I'm not getting air out of all my floor vents. Cool air is coming out of some but other vents there is no air coming out at all. I just...

Hot air not blowing out of vents [ 1 Answers ]

Furnace kicks on, but air blows cool (not quite warm). Thermostat is in bedroom #2 and only has the job to heat itself plus bedrooms 3 & 4, but bedrooms 3 & 4 are like freezers. Filters are cleaned regularly.

No heat blowing from vents [ 1 Answers ]

This morning I could hear the motor running on the air/heat unit; however no heat or air was coming through the vents. It seems like the fan is not working. My mother in law mentioned the possibility of it being a fuse out on the unit. I just don't want to wait until Monday to fix something that I...

View more questions Search