No Compressor Fan

Old 06-11-10, 07:30 AM
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Exclamation No Compressor Fan

Hi all and thanks in advance for any advice.

I came home recently to my upstairs ac unit blowing hot air. Clearly the blower is working. I went outside to the condenser unit. (Feel free to correct my lingo if needed) Neither the fan nor the compressor was running...

I had previously fixed my heating unit a year or two ago by replacing the blower fan and its capacitor, just fyi.

So, I did some calling around to some friends who know more than I do. After that I decided to replace the fan motor and the capacitor for the outside unit. The capacitor has three prongs and runs both the fan and the compressor. I replaced the fan and capacitor and still nothing.

Now, I here a buzzing or humming noise at the switch to the outside condenser unit. And, I am well beyond my knowledge.

I'm not sure if I've just done something stupid, wrong or if there is a bigger issue here I need to tackle. Any thoughts?
Old 06-11-10, 09:32 PM
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Do you have 240 volts between L1 and L2?
T1 to T2 with demand?

Breaker type disconnects can fail when you actually use them. I prefer pull type disconnects.

What is the make and model of your unit?
What did you connect to Herm?
What did you connect to C ?
What did you connect to Fan on your new Dual capacitor?

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