Need help with the wiring of my AC condenser fan

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  #1  
Old 08-09-14, 07:55 AM
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Need help with the wiring of my AC condenser fan

First post here so forgive me if this has been asked before.

My AC condenser fan motor went out and I ordered a replacement on line. I did this by giving them the PN of my old motor and they matched up the specs and sent me a new one. I transferred the fan from the old motor to the new and installed it in the condenser unit but I got stuck on the wiring.

My old fan had 3 wires: Black, Yellow, and White. These ran to the control box and capacitor bank.

The new fan has four wires: Brown, Brown/White, White, and Black.

I know how the old wires were attached but I'm not sure how to wire this fan properly.

Any insight is appreciated.
 
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Old 08-09-14, 09:17 AM
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Welcome to the forums.

When you received your replacement motor- did it come with it's own capacitor ?
If not you need to make sure the lower value of the dual capacitor matches.

Normally when the motor is replaced... so is the capacitor.
 
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Old 08-09-14, 02:55 PM
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Yes, it came with an in-line capacitor unlike my old motor which hooked straight to the capacitor bank.
 
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Old 08-09-14, 04:36 PM
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That capacitor that came with the new motor gets connected to the brown and brown/white wires coming from the motor. No polarity on cap.

The other two wires get connected to the load side of the contactor. One of the old motor wires is already there. The other motor lead went to the dual cap.
 
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