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Old 12-12-2014, 11:53 AM   #15
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that is what I was thinking also, but no air moving whatsoever. thanks
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Old 12-13-2014, 03:24 AM   #16
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Sounds like the fan shift is not turning. What gage wire was the extension cord? You should check to see if the fan motor is stuck or locked up in any way. You may want to find a good qualified technician to come help you out ou this if you cannot find a simple fix.
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Old 12-13-2014, 06:47 AM   #17
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thanks, I will get with a technician. the cord was the only one I had at the time. just one of those orange outdoor cords. I need to pick up a heavier cord , which is on my list of items before spring maiden voyage.
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Old 12-13-2014, 07:38 AM   #18
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Rooftop A/C question

Hmm... Assuming it worked to start with, perhaps bent fan blades, a wire clipped, or an obstruction as a result of the accident causing them to hit against something and not turn?
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Old 12-13-2014, 08:31 AM   #19
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pics of the damage

here is a pic of the damaged shroud. I have removed some of the broken pieces. you can see where it scraped across the top of the cooling fins I believe. thanks for your help . scheduled to clean and seal the roof in January also as you can see it needs it.
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Old 12-13-2014, 08:42 AM   #20
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Old 12-13-2014, 08:45 AM   #21
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Old 12-13-2014, 11:08 PM   #22
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In addition to other helpful suggestions....

1) As Noel pointed out, the actual temperature at the A/C thermostat may be lower than your lowest mechanical stepping and therefore will not start the compressor or fan.

2) The indoor fan will not necessarily run if the A/C is in cooling mode and is set in "auto" position, AND the T-stat setppoint is higher than the actual indoor temp.

3) Your extension cord will likely not provide enough current to over come the needs of the starting CAPACITOR for the compressor. My guess is that the "buzz" you hear is also "buzzing" when you run your generator, but you just can't hear that over the generator noise.

4) You A/C compressor may not try to start if the unit is low on refrigerant gas. A low pressure switch will prevent start. A knowledgable mechanic needs to check for a proper charge.

5) I suppose the obvious ( and most wishful solution) would be to carefully inspect ALL the rooftop A/C wiring. Small control wire connectors can easily be pulled off their connection, which could have easily happened when the shroud was broken.

Hope you find a simple and inexpensive fix

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Old 12-14-2014, 06:08 AM   #23
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great info. thanks again . you have enlightened my cranial cavity. I will replace the shroud and be ready to attack the problem when the weather gets better.
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Old 12-14-2014, 10:08 AM   #24
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You can use a hair dryer to warm up the tstat to make it go.
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Old 12-14-2014, 10:10 AM   #25
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Originally Posted by TQ60 View Post
You can use a hair dryer to warm up the tstat to make it go.
You might also try it on the generator to be sure you're getting full voltage. Just be cautious running generator in a closed space, only do it a couple of minutes.
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Old 12-14-2014, 10:41 AM   #26
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Can you turn the fan from the roof? From the pic it looks like it could have moved the evaporator or the condenser causing a fan blade to bind up.
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Old 12-14-2014, 10:47 AM   #27
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As cold as it is in IN. I doubt you can turn the thermostat low enough to get the A/C to come on. However, I think the fan should come on regardless.
X2! Wait till it warms. Probably too cold for the AC!
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Old 12-14-2014, 12:51 PM   #28
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The hair dryer thing would work probably, but dw says I could just breath on it for a little bit and would accomplish the same result.
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