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Old 03-23-2018, 09:08 AM   #81
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Easy check...disconnect from shore power. Make sure generator is turned off. Turn on heater. Heater will run on batteries. Your AC won't but the fan will. If it sounds like the AC is on but your not connected to power I Guarantee your AC is not on.

Your probably just blowing cold air in from outside. The AC sucks air in with the fan.
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Old 03-23-2018, 09:10 AM   #82
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Man, he must be all full busy. We'd all like to know what he found out. Maybe he's just teasing us.
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Old 03-23-2018, 09:23 AM   #83
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I agree cavie... this guy is giving confusing advice and causing more confusion to an already confusing issue.
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Old 03-23-2018, 09:38 AM   #84
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I agree cavie... this guy is giving confusing advice and causing more confusion to an already confusing issue.
I had a much different answer but held back do to a previous spanking.
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Old 03-23-2018, 09:44 AM   #85
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Easy check...disconnect from shore power. Make sure generator is turned off. Turn on heater. Heater will run on batteries. Your AC won't but the fan will. If it sounds like the AC is on but your not connected to power I Guarantee your AC is not on.

Your probably just blowing cold air in from outside. The AC sucks air in with the fan.
When on battery power alone (no shore or generator power), the furnace will work, but the AC will not run at all, it needs 120 AC to run fan/compressor. Also AC circulates air from inside trailer and does not bring air from outside.
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Old 03-23-2018, 09:48 AM   #86
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When on battery power alone (no shore or generator power), the furnace will work, but the AC will not run at all, it needs 120 AC to run fan/compressor. Also AC circulates air from inside trailer and does not bring air from outside.
Damn, you went and ruined it. I wanted to hear THAT explanation!:rofl black:
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Old 03-23-2018, 01:33 PM   #87
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When on battery power alone (no shore or generator power), the furnace will work, but the AC will not run at all, it needs 120 AC to run fan/compressor. Also AC circulates air from inside trailer and does not bring air from outside.
Am I right in my thinking if you do it this way and you hear a relay click at the AC, then your thermostat is wired incorrectly?

I had to remove the cover for my AC to get rid of a hornets nest. While in there I took a picture of the fan and the label with the electrical ratings for the unit. The fan is 115vac. Guess I never gave it much thought until now.
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Old 03-23-2018, 01:42 PM   #88
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I知 just going to go ahead and assume this was a user error
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Old 03-23-2018, 03:25 PM   #89
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Am I right in my thinking if you do it this way and you hear a relay click at the AC, then your thermostat is wired incorrectly?

I had to remove the cover for my AC to get rid of a hornets nest. While in there I took a picture of the fan and the label with the electrical ratings for the unit. The fan is 115vac. Guess I never gave it much thought until now.
Thermostat is supplied from the battery at 12 volts. So yes you can hear a relay operate in the AC even if the shore power or generator power is off.
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Old 03-23-2018, 08:00 PM   #90
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Ok. I reread my post and I guess I didn't type out my thought correctly. I understand the confusion.
Yes, I know the fan on the AC sucks air from inside the RV and circulates it. I meant to say that the Air in the RV is probably still cold enough to be blown back through. Even though the heater is on. I have experienced the same effect in my RV. My point was however that it couldn't possibly be the AC compressor working because that would require shore power or the generator to be on.

Sorry for the confusion.
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Old 03-23-2018, 08:05 PM   #91
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The ac fan won't run without shore power either. Only your furnace runs on 12 volt.
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Old 03-23-2018, 08:59 PM   #92
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The OPs "master HVAC tech" was supposed to check out his problem over a week ago and we have heard nothing. I'm guessing we never will.
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Old 03-23-2018, 09:06 PM   #93
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I'd bet the farm--he's GONE!!!!!!!
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Old 03-31-2018, 10:02 AM   #94
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I'd bet the farm--he's GONE!!!!!!!
No sir...replied to your message.

The A/C was running at the same time the heat was.

My HVAC friend was able to identify the problem and fix it like it was nothing. I知 relieved.

I have a lot going on today, I値l try to share details later if anyone is interested; I壇 have to call him for specifics. He fixed it without any parts being needed.

Cheers
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Old 03-31-2018, 10:11 AM   #95
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Old 03-31-2018, 10:41 AM   #96
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Glad you got it fixed.

When you get time, let us know what your friend found. Some of us are interested.
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Old 03-31-2018, 10:45 AM   #97
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sounds like an improperly wired t-stat. I knew you weren't crazy.
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Old 03-31-2018, 10:49 AM   #98
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sound like an improperly wired t-stat.


I知 not sure an improperly wired thermostat could make both come on? I could see it being wired backwards, but not make both come on??
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Old 03-31-2018, 12:24 PM   #99
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Something not right here...... It only takes 20 seconds to post the problem. Unsubscribed to this thread.
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Old 03-31-2018, 02:42 PM   #100
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Glad you got it fixed.

When you get time, let us know what your friend found. Some of us are interested.
Yes, it really would be nice to know.
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