FYI - Know what you're doing with your A/C unit

Thread Tools
 
Old Aug 9, 2006 | 04:51 PM
  #1  
mamboking's Avatar
Thread Starter
Banned
 
Joined: Oct 2005
Posts: 2,994
Likes: 0
FYI - Know what you're doing with your A/C unit

This is just and FYI in case you run into the same problem someday.

My story:
Last summer, my A/C unit quit working. I called the A/C repair guy to fix it and he wanted to charge me $600 for it (the A/C unit was out of warranty). It turns out the blower fan motor on the cooling unit was dead. I said fuck it, I'll fix it myself and only paid like $80 for the visit. Well, I got in touch with a friend of mine who works in maitenance of a large apartment complex. He told me he would hook me up with a used motor for free. When he got to the house, his motor had slightly different specs than mine. My originial motor was 1/4 HP and 825 RPMS. His was 1/3 HP and 1070 RPMS. He told that it wasn't a big deal to have a faster motor and that it would work just fine. I was uneasy about it but I figured that the faster the new motor pulls the hot air out, the better for the condenser. Well, the A/C unit started working again and I was a happy camper for saving a bunch of $$$$$.

Fast forward to this summer (which has been hotter than hell), and the A/C unit stop working again. I went out to the cooling unit and noticed that the blower motor was not working and it was very hot when touching it. Well, I concluded that the blower motor was shutting itself off because of an internal thermal switch. I called my buddy and he had no idea why the motor was getting too hot and turning itself off. He had me call a friend of his which has more experience with Air conditioning and when he heard my problem, he asked me if I had changed the blades when changing the motor. I said no, that we had used the same blades that the previous motor had. Well he said, the blades are made for a specific speed and the motor is going too fast and not getting the hot air out the way it should. The fix had worked for the previous summer because it wasn't nearly as hot outside as this year. So, I decided to buy a motor with the same specs as the original unit had, and voila, my A/C unit was fixed for good.

Moral of the story is that if your repair something like an A/C unit make sure to replace the parts with the same specs as the original ones and forget what your so called expert friends tell you.
Reply
Old Aug 10, 2006 | 09:26 AM
  #2  
RaviNJCLs's Avatar
Team Owner
20 Year Member
Liked
Loved
Community Favorite
iTrader: (4)
 
Joined: Mar 2004
Posts: 37,141
Likes: 624
From: Landisville, PA
Good to know.
Reply
Old Aug 10, 2006 | 04:23 PM
  #3  
doopstr's Avatar
Team Owner
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2001
Posts: 25,967
Likes: 2,685
From: Jersey
So what's a motor cost?
Reply
Old Aug 11, 2006 | 11:55 AM
  #4  
badboy's Avatar
Safety Car
 
Joined: Aug 2004
Posts: 4,197
Likes: 16
From: NJ
Originally Posted by mamboking
Fast forward to this summer (which has been hotter than hell), and the A/C unit stop working again. I went out to the cooling unit and noticed that the blower motor was not working and it was very hot when touching it. Well, I concluded that the blower motor was shutting itself off because of an internal thermal switch. I called my buddy and he had no idea why the motor was getting too hot and turning itself off. He had me call a friend of his which has more experience with Air conditioning and when he heard my problem, he asked me if I had changed the blades when changing the motor. I said no, that we had used the same blades that the previous motor had. Well he said, the blades are made for a specific speed and the motor is going too fast and not getting the hot air out the way it should. The fix had worked for the previous summer because it wasn't nearly as hot outside as this year. So, I decided to buy a motor with the same specs as the original unit had, and voila, my A/C unit was fixed for good.
Why didn't he give you his number in the first place?
Reply
Old Aug 11, 2006 | 12:37 PM
  #5  
mamboking's Avatar
Thread Starter
Banned
 
Joined: Oct 2005
Posts: 2,994
Likes: 0
Originally Posted by doopstr
So what's a motor cost?

$150. OEM. $250 if you want it to be GE like the first one.
Reply
Old Aug 12, 2006 | 10:21 PM
  #6  
fast-tl's Avatar
I love cars!
 
Joined: Feb 2003
Posts: 3,807
Likes: 2
From: TEXAS
We had our A/C go dead last year as well, when the summer wasn't so bad in Dallas. There's an HVAC company not three minutes from my house - phew. I was sweating bullets because we hadn't put ONE dime into the system since we bought the 20-year-old house in '98. Thankfully it was just the blower motor, and $316 later we were swimming in cold air again. This is where that emergency fund comes in handy, if you have one!
Reply
Old Aug 13, 2006 | 12:20 AM
  #7  
2001AudiS4's Avatar
Suzuka Master
20 Year Member
Photogenic
 
Joined: Oct 2001
Posts: 6,523
Likes: 54
From: Trumbull, CT
Originally Posted by mamboking
$150. OEM. $250 if you want it to be GE like the first one.
You could have matched up the motor you got for free with a new blade with a different pitch and gotten away with fixing it for like $10. Still though, not bad for fixing it yourself. Most people would never in a million years attempt that.
Reply
Old Aug 16, 2006 | 07:04 PM
  #8  
Bobbydoedoe's Avatar
I'm Cool
 
Joined: Jan 2002
Posts: 2,054
Likes: 0
From: Diamond Bar, CA
sure beats spending $600 to fix it
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Biggie_B
5G TLX (2015-2020)
13
May 27, 2025 05:51 PM
dirleton
2G RDX (2013-2018)
11
Aug 6, 2024 08:19 PM
acuratl26
2G TL (1999-2003)
24
Apr 23, 2020 07:30 PM
hashbrown
4G TL (2009-2014)
2
Sep 29, 2015 12:13 PM
Eggs999bacon
2G TSX (2009-2014)
10
Sep 24, 2015 10:08 AM




All times are GMT -5. The time now is 11:13 PM.