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Old 10-10-2011, 09:50 PM   #16
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Outside condenser fan motor stops


It sure sounds like a loose connection (though an amp reading would be great). There is usually a separate connection shown where red meets purple in this diagram that I would check. Could the condenser fan motor wires be pinched? What make and model motor did you install?


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Old 10-11-2011, 04:04 PM   #17
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Outside condenser fan motor stops


Thanks for the wiring diagrham! I'll have to use it this afternoon as when I turned the system on for the first time today, only the condenser came on. When I went out to bump the unit, the fan motor did start running yet only for a minute or two. YET, this time when I bumped the unit, the fan did not start turning and when I continued to bump the unit several more times, it would not turn at all. Hence, I would assume the loose connection is at the defrost board or relay board as the 2 new motors that I hooked up over the past 30 days ran quite fine (meaning I hooked up the motor wires correctly). Does that make sense?

Thanks for the much-needed advice!!!
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Old 10-11-2011, 05:21 PM   #18
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Outside condenser fan motor stops


I believe there is a wire splice behind the defrost board.
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Old 10-12-2011, 06:41 PM   #19
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Outside condenser fan motor stops


Ok, I checked all the wires and connections this time yesterday and then turned the system back on afterwards and it has been running like a champ ever since.

Now, here's the only issue I think may have been "The Issue" (not to be confused with "The Situation" from Jersey Shore):

While checking the wires/connections, I got to thinking about what was the common link with the fan motor stopping and then realized that it was the defrost board and contactor in that it did not matter if the fan motor black wire was plugged into the defrost board or the contactor, the fan eventually stopped running. Hence, when I looked at that link, it turns out that I a black and blue wire (whatever that is for) was continuously hooked up to the contactor and defrost board. YET, the contact point that it was hooked up to on the contactor and of which I would also hook the black fan motor wire to, slid back & forth because the wire screw that held it in place was not fastened in all the way. So, I screwed it in all the way to keep that contactor point/prongs from moving.

Which brings me to my hypothesis: The fan motor would stop running because the contactor point would lose contact due to sliding back & forth due to the vibration of the unit when the fan motor was running and hence would explain why the fan motor would start running again after I bumped the unit each time which would make the loose contactor point move and gain the neccessary contact!

Since I am but a rank amateur and not a highly experienced hvac technician, please let me know your thoughts.

Thanks, again, for all your feedback (especially yours, Master of Cold!)!
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Old 10-12-2011, 07:53 PM   #20
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Outside condenser fan motor stops


That is a very plausable situation. The terminal connections bolt (screw) to the copper contact plate. So I could see this causing an intermittent connection.

Now, make sure you check the zeuberater shaft, and muffler bearings.
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Old 10-12-2011, 09:13 PM   #21
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Outside condenser fan motor stops


Master of Cold, you know it's all ball bearings these days!

Sincerely,

Fletch
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Old 10-12-2011, 09:17 PM   #22
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Outside condenser fan motor stops


Ah, Fletch. That's a blast from the past. Intellectual humor....lost on todays youth.

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