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HVAC vent

Old Aug 24, 2017 | 06:34 PM
  #1  
truckman5000's Avatar
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W30
 
Joined: Feb 2016
Posts: 529
From: Cape Cod Ma
HVAC vent

Why would the blower be blowing out air from the return, sucking from the supply vents.
Ive never dealt with car blower motors, can it be installed backwards from a previous owner
Old Aug 25, 2017 | 06:14 AM
  #2  
joe_padavano's Avatar
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Joined: Mar 2007
Posts: 50,849
From: Northern VA
Originally Posted by truckman5000
Why would the blower be blowing out air from the return, sucking from the supply vents.
Ive never dealt with car blower motors, can it be installed backwards from a previous owner
Since you've provided exactly NO information on the car or whether or not it has A/C, I'm going to see if the mind reading thing is working yet...

I'll ASSUME you have A/C. If so, the motor has two wires, one for power and one for ground (since the A/C case is non-conductive fiberglass). If these are reversed, the motor will likely run backwards.
Old Aug 25, 2017 | 02:37 PM
  #3  
truckman5000's Avatar
Thread Starter
W30
 
Joined: Feb 2016
Posts: 529
From: Cape Cod Ma
Originally Posted by joe_padavano
Since you've provided exactly NO information on the car or whether or not it has A/C, I'm going to see if the mind reading thing is working yet...

I'll ASSUME you have A/C. If so, the motor has two wires, one for power and one for ground (since the A/C case is non-conductive fiberglass). If these are reversed, the motor will likely run backwards.
thanks, Joe. Great mind feeding spot on thanks again
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