Condensor fan not moving air properly
Interesting problem I've seen a total of 3 times now...and I haven't a CLUE. Nor does Carrier or Trane tech support.
I've had this happen on a Trane Package Heat Pump, York Heat Pump and Carrier Straight A/C.
The condensor fan assembly is running but doesn't move air UP and OUT of unit. Instead it seems to kick the air off the sides of the unit, which includes pushing it through the top of the condensing coil. I've replaced the motor and blade on the Carrier and Trane units but it doesn't solve the problem. This is causing very little air to be moved across the coil and is resulting in very high head pressure. Has anybody ever seen this? And if so have you found a solution?
Since giving answers to question like this in the open residential forum. provides info for DIYers.
You won't get the answer.
Get your post count up to 15, and apply for pro membership.
I've discovered a natural law - everything gets progressively worse. Things only break down and become depleted. Life isn't worth living and everything is going to hell.
Death is the messiah. Everything else is irrelevant and arbitrary.
If you are describing the air as only coming from the very outer edge of the blade (and not all the way across the top of the unit), you are describing what happens when
Last edited by beenthere; 05-13-2009 at 09:37 PM.
Reason: Deleted DIY info
Well Moderator said it first so I cant tell ya what it is, but I will say its a simple fix, get your pro on and we can go from there.
Manufacturers omitting venturi rings to save a few $$ may be partially to blame. The remainder is a field remedy, which is *CENSORED*
Originally Posted by sandpipertech
Building Physics Rule #1: Hot flows to cold.
Building Physics Rule #2: Higher air pressure moves toward lower air pressure
Building Physics Rule #3: Higher moisture concentration moves toward lower moisture concentration.