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Old 06-22-2010, 10:31 AM   #16
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Outdoor Condenser Fan Stops After 10-15 minutes


Did you discover this by checking the schematic diagram?

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Old 06-22-2010, 05:57 PM   #17
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Outdoor Condenser Fan Stops After 10-15 minutes


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Originally Posted by falconbrother View Post
Did you discover this by checking the schematic diagram?
Lennox split systems do not come with two wires for a capacitor so the motor was replaced at some point. Many new motors do not show the brown only option, they want both wires used with a seperate capacitor. No idea why but it is what it is.
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Old 06-22-2010, 08:04 PM   #18
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Outdoor Condenser Fan Stops After 10-15 minutes


We had another tech take a look and he discovered the wiring issue. However, when you look at the schematic diagram you can see that the brown/white wire was not used.
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Old 06-25-2010, 02:48 PM   #19
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Outdoor Condenser Fan Stops After 10-15 minutes


After the first company failed to get my unit working for more than 10 minutes after 6 trips (over 4 days) I had to call someone else. As soon as he showed up, the just started cussing... He ripped out everything they had done all week and replaced the 1075 rpm motor because the spec called for an 825 rpm. He also replaced the fan blade because he said the one I had was a replacement and the original should have 3 blades and less pitch. I very well could have had a similar wiring problem as you mentioned, but he seemed to think the wrong rpm motor and wrong fan blade were the main culprits.

Also - he took out the starting capacitor because he said the current draw of my compressor was not high enough to warrant having one. I thought this odd since it came from the factory with one installed on a 3.5 ton unit (Lennox: 10AC42-3P). Should I put that back on? The potential relay was removed as well... Its been working for over 1 week now...

-Inet
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Old 06-25-2010, 04:11 PM   #20
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Outdoor Condenser Fan Stops After 10-15 minutes


Said back in post #12 it wouldn't last long.

Factory hard start kits are generally for efficiency increase. And the proper set up aids in compressor life. With a proper meter. He would be able to see that it basically draws LRA everytime it starts.

An improper wiring of the hard start kit, can wipe out your compressor. So if you reinstall it. Make sure you make no mistakes.
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Old 06-25-2010, 07:44 PM   #21
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Outdoor Condenser Fan Stops After 10-15 minutes


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Quote:
After the first company failed to get my unit working for more than 10 minutes after 6 trips (over 4 days) I had to call someone else
Get charged the full price? If so, this why I hate to call anyone to work on anything.
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Old 06-25-2010, 11:53 PM   #22
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Outdoor Condenser Fan Stops After 10-15 minutes


unfortunately yes, and I'll take my lumps for not kicking them out sooner.

When three guys are bent over your AC for day #2 this should have told me something sooner. As irritated as the whole thing made me, I was glad to be done with them. The did clean the inside and outside coils although this had absolutely nothing to do with the problem.
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Old 03-13-2012, 03:11 AM   #23
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Outdoor Condenser Fan Stops After 10-15 minutes


i was having the same problem with my york unit and chased every idea and bought every new electrical part in the loop. to shorten a long and frustrating story it was either 2 faulty motors (old one and 1st new one) or the slightly wobbly fan blade(my last idea). i feel fairly confident that the wobbly blade was causing more current draw and overheating the motor(s) where as the new blade(exact replacement) is smooth and quiet and the motor actually runs cool to the touch unlike the egg fryers before it. though i probably bought some unneeded equipment, never the less i spent less than i would have had i called the 'professionals'... and i am getting to be a pretty good york ac technician.

Last edited by washicd; 03-13-2012 at 03:22 AM.
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Old 03-13-2012, 08:57 AM   #24
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Outdoor Condenser Fan Stops After 10-15 minutes


quit hi- jacking and start a new thread.

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