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.
General public's attitude towards our energy predicament: "I reject the reality of finite resource depletion and substitute it with my own; energy is infinite, we just need an alternative storage medium to run the cars on. The economy can grow indefinitely - we just need to "green" everything! Technology is energy! Peak what?"
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
- Electricity makes refrigeration happen.
- Refrigeration makes the HVAC psychrometric process happen.
- HVAC pyschrometrics is what makes indoor human comfort happen...IF the ducts AND the building envelope cooperate.
A building is NOT beautiful unless it is also comfortable.