Long story but want to be thorough.
I Purchased My Dads house when he retired. He had a Trane A/C unit put in new like a Billion years ago. Its worked awesome since the day they put it in. First start up this year I noticed it took forever to cool the house down (It never really did) Outside condenser/ compressor Unit started to make a weird warbling noise so I shut it off .I had the company that installed it years ago come back in to check it out. Of course it wasn't doing it when they came by and that particular day it was 68 degs out. They just said "It seems to be working" and left..
Cut to a few days ago and I turned the unit on again to knock the heat down a bit and it started making noise again. Sounded like the bearing in the condenser fan so I took it off and checked it. It has bushings instead of bearings and they were dry. It has lube points so I oiled them. After I turned the unit back on I noticed it sucks air in through the top of the unit from the fan and blows it out the sides of the unit. The Motor was marked what end was what and there isnt any way to have put the windings and shaft in backwards. The Fan is unfortunately running in reverse. And probably has been since I first turned it out this year. It is only a 3 wire motor non reversible. The wiring is correct as I took pics of everything before I took it out. Any idea what causing it to run in reverse? Bad Start capacitor? I assume that is what is causing the unit to not cool the house down.
If this thing had a carb and points it would already be running.
Ideas on the above?
Outside A/C condenser fan running backwards?
I Purchased My Dads house when he retired. He had a Trane A/C unit put in new like a Billion years ago. Its worked awesome since the day they put it in. First start up this year I noticed it took forever to cool the house down (It never really did) Outside condenser/ compressor Unit started to make a weird warbling noise so I shut it off .I had the company that installed it years ago come back in to check it out. Of course it wasn't doing it when they came by and that particular day it was 68 degs out. They just said "It seems to be working" and left..
Cut to a few days ago and I turned the unit on again to knock the heat down a bit and it started making noise again. Sounded like the bearing in the condenser fan so I took it off and checked it. It has bushings instead of bearings and they were dry. It has lube points so I oiled them. After I turned the unit back on I noticed it sucks air in through the top of the unit from the fan and blows it out the sides of the unit. The Motor was marked what end was what and there isnt any way to have put the windings and shaft in backwards. The Fan is unfortunately running in reverse. And probably has been since I first turned it out this year. It is only a 3 wire motor non reversible. The wiring is correct as I took pics of everything before I took it out. Any idea what causing it to run in reverse? Bad Start capacitor? I assume that is what is causing the unit to not cool the house down.
If this thing had a carb and points it would already be running.
Ideas on the above?
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