View single post by ABreese
 Posted: Fri Jun 18th, 2010 05:58 pm
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ABreese

 

Joined: Wed Mar 21st, 2007
Location: Dallas
Posts: 17
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 The Carrier central AC in my parent's home is ~17 years old, and I want to change the motor capacitor as a preventative measure.  When removing the cover, I discovered there were 2 capacitors installed, as follows:

5uF @ 370Vac   and    5uF/45uF @ 370Vac

The dual-cap had nothing connected to the 5uF tab, and the small cap doesn't appear to be 'factory' - it's laying down on the chassis (not affixed with a clamp), and has some black electrical tape wrapped around the tabs to insulate the connectors.  I suspect the 5uF portion of the dual cap went bad at some point,  and whomever serviced it didn't have a dual cap available so used a 2nd cap because it was handy.

I would like to remove the small individual fan cap and replace the dual cap, but want to ensure I wire it correctly.  The schematic on the cover is old and is not readily readable.  Here's the current connection.

5uF cap has 1 brown wire, and 1 brown wire with a white tracer.  The cap has no markings on it.

5uF/45uF cap has 1 yellow wire (C) and 1 Blue wire (Herm).  Again, nothing is connected to the Fan tab.

How do I connect this back up using only a dual-cap?  Thanks in advance for helping a Novice!

Alan  :)