condensor fan
Racer
Joined: Aug 2002
Posts: 461
Likes: 0
From: Winchester Va.
Correct,
In fact ,if it is not working, the A/C compressor will develop a high head pressure and not work correctly. Easy to check, pull the carpet back and cycle the A/C and see if the blower is working. If not, check all the electrical connections and fuse, then finally pull the motor housing and look for a melted brush holder (common problem). there are parts available from Vertex, Paragon and others.
HTH
Tim
In fact ,if it is not working, the A/C compressor will develop a high head pressure and not work correctly. Easy to check, pull the carpet back and cycle the A/C and see if the blower is working. If not, check all the electrical connections and fuse, then finally pull the motor housing and look for a melted brush holder (common problem). there are parts available from Vertex, Paragon and others.
HTH
Tim
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Instructor
Joined: Jun 2003
Posts: 226
Likes: 2
From: Tallahassee Florida
Folks,
Tim's advice is spot-on in my (recent) experience and please DO heed his high head pressure warning for the compressor if you choose to run without the fan.
One of the red plastic commutator holders (called 'brushes' but mine were made of a soft solid material - graphite & some conductive metallic composite?) melted and let the 'brush' slip into a position that stopped it from working. No blown fuse and the relay for the fan was fine. Lucky in that regard at least.
About $130 US from Parts Heaven got me a used motor complete with cage and housing. My housing was cracking so I opted for the whole deal. The motors themselves are available for about $95 US from the same source but you'll need to have the fan cage pressed off of the old motor's shaft.
Even after removing the allen head set screw from the fan cage's mounting collar (accessible through a strategically located hole in one of the cage fan's blades) and a six hour soaking with Liquid Wrench it was near impossible to get the cage off of the shaft!
Of course, I removed it prior to determining that it was best for me to just replace the whole shebang but I'm keeping the old stuff. Who knows? Maybe the replacement will fail on the other 'brush' and I'll have the parts to revive one of the two motors!?!?! :-)
If I could have found a source of replacement commutators I probably could have re-used the original motor as a VOM/DMM check shows the motor's core windings are OK. Once again a $100 part taken out by a $2 sub-assembly!
Barry
Originally posted by tdatk944+S4
Correct,
In fact ,if it is not working, the A/C compressor will develop a high head pressure and not work correctly. Easy to check, pull the carpet back and cycle the A/C and see if the blower is working. If not, check all the electrical connections and fuse, then finally pull the motor housing and look for a melted brush holder (common problem). there are parts available from Vertex, Paragon and others.
HTH
Tim
Correct,
In fact ,if it is not working, the A/C compressor will develop a high head pressure and not work correctly. Easy to check, pull the carpet back and cycle the A/C and see if the blower is working. If not, check all the electrical connections and fuse, then finally pull the motor housing and look for a melted brush holder (common problem). there are parts available from Vertex, Paragon and others.
HTH
Tim
Tim's advice is spot-on in my (recent) experience and please DO heed his high head pressure warning for the compressor if you choose to run without the fan.
One of the red plastic commutator holders (called 'brushes' but mine were made of a soft solid material - graphite & some conductive metallic composite?) melted and let the 'brush' slip into a position that stopped it from working. No blown fuse and the relay for the fan was fine. Lucky in that regard at least.
About $130 US from Parts Heaven got me a used motor complete with cage and housing. My housing was cracking so I opted for the whole deal. The motors themselves are available for about $95 US from the same source but you'll need to have the fan cage pressed off of the old motor's shaft.
Even after removing the allen head set screw from the fan cage's mounting collar (accessible through a strategically located hole in one of the cage fan's blades) and a six hour soaking with Liquid Wrench it was near impossible to get the cage off of the shaft!
Of course, I removed it prior to determining that it was best for me to just replace the whole shebang but I'm keeping the old stuff. Who knows? Maybe the replacement will fail on the other 'brush' and I'll have the parts to revive one of the two motors!?!?! :-)
If I could have found a source of replacement commutators I probably could have re-used the original motor as a VOM/DMM check shows the motor's core windings are OK. Once again a $100 part taken out by a $2 sub-assembly!
Barry
Advanced
Joined: Jan 2002
Posts: 78
Likes: 0
From: Livermore, CA
has anyone upgraded their fan? I was thinking that it would help the AC if there were a way to install a higher cfm fan in that spot. The stock one doesn't seem to move much air... of course it doesn't do much when rolling, but when sitting still I'd think it'd be an improvement to push more air through...