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AC Capacitor Question
Posted on 8/6/24 at 12:21 pm
Posted on 8/6/24 at 12:21 pm
I've never looked at my AC's capacitor before so today I took off the service panel and I'm a little confused. It's a 5 ton RUUD that is about 5 years old. Unit works fine.
In the service panel area, there is only one, single run (meaning two contacts) capacitor. I would expect there to be a dual run (meaning 3 contacts). Below is a link to the capacitor that's in there. It's a 70MFD so I assume thats for the compressor. My question is, shouldn't there be another capacitor for the fan?
LINK
In the service panel area, there is only one, single run (meaning two contacts) capacitor. I would expect there to be a dual run (meaning 3 contacts). Below is a link to the capacitor that's in there. It's a 70MFD so I assume thats for the compressor. My question is, shouldn't there be another capacitor for the fan?
LINK
2
Posted on 8/6/24 at 12:42 pm to MikeBRLA
I'm not an expert, but you probably have an ECM motor. Everything is electronic so there is no capacitor needed. It is supposed to be more energy efficient since it senses what speed it needs to run unlike a PSC motor that just runs at the same speed no matter what.
Posted on 8/6/24 at 1:09 pm to MikeBRLA
Check the panel you took off and look at the wiring diagram.
Posted on 8/6/24 at 4:50 pm to LEASTBAY
Thanks for the advice. Don’t know why I didn’t think of that. Hopefully it sheds som light on this unusual setup.
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