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Old 01-11-2009, 03:16 PM   #16
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What is "Aux HT"?


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Originally Posted by HvacWiz View Post
Not when the outdoor temp drops below 35, most heat pumps have outdoor temp sensor that does not allow them to run when temps are near freezing, and on a call for heat the aux heat will kick on instead.
Even a 30 year old heat pump is more efficient then electric strip heat at 35F outdoor temps.

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Old 01-11-2009, 03:17 PM   #17
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What is "Aux HT"?


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I'm sure it's better left to an expert, but is there anything I could try on my own to troubleshoot?
Not really.

Get it check ASAP, so that the problem you have now, doesn't cause more harm.
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Old 01-15-2009, 10:26 AM   #18
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What is "Aux HT"?


So I checked the unit out and the fan isn't spinning and there's ice on it. It makes a sound like it's on, but the fan doesn't spin. Any suggestions? Easy fix, hopefully?

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Old 01-15-2009, 01:08 PM   #19
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What is "Aux HT"?


Sounds like it's time for a Pro. And I would turn off the outdoor unit to prevent further possable damage.
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Old 01-15-2009, 01:32 PM   #20
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What is "Aux HT"?


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Sounds like it's time for a Pro. And I would turn off the outdoor unit to prevent further possable damage.
how do I do that? Will that turn off heat completely?

A pro has been dispatched.
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Old 01-15-2009, 01:42 PM   #21
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What is "Aux HT"?


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how do I do that? Will that turn off heat completely?

A pro has been dispatched.
Ther should be a disconect box on the wall near the outdoor unit. Open it and there is usually some kind of pullout to disconect power to the unit. Be carfull there is high voltage power in there and sometimes the covers arnt installed correctly.
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Old 01-15-2009, 01:48 PM   #22
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What is "Aux HT"?


oh, just disconnect the unit altogether? will I lose all heat then?

thanks for the help!
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Old 01-15-2009, 02:04 PM   #23
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What is "Aux HT"?


No you shouldent loos heat I dont belive the Ruud brand uses a transformer in the outdoor unit. When you disconect it the indoor unit should keep running.

Just in case when you looked at the outdoor unit and the fan was off was it steaming around the unit. When they go into defrost the fan can turn off.
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Old 01-15-2009, 02:06 PM   #24
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What is "Aux HT"?


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No you shouldent loos heat I dont belive the Ruud brand uses a transformer in the outdoor unit. When you disconect it the indoor unit should keep running.
great, thanks


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Just in case when you looked at the outdoor unit and the fan was off was it steaming around the unit. When they go into defrost the fan can turn off.
I didn't see any steam and I haven't seen the fan turn on at all.
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Old 01-15-2009, 03:06 PM   #25
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Andrew.
Your Goodman, should still be around a COP of 1.7 to 1.9 at 0 to -5.
Which still makes it cheaper to let the heat pump run, when its operating correctly.

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