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Old 09-21-2013, 01:48 PM   #21
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its analogue . it only has for the fan high and low he said when he kick it down to 78 it will keep kicking on and off
Mu guess is either a bad electrical connection somewhere in the 110 volt system causing it to have a shutdown condition due to under voltage. Or he has too much airflow on the thermostat and it senses very cold air and thinks it it time to shutoff. Then it warms quickly and turns back on. If by turning it down extremely low, it runs for a good long time I would rule out the electrical issues and check airflow. Do not have the full force of a air vent blowing on the thermostat.
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Old 09-21-2013, 01:54 PM   #22
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I read the manual and don't see any reason that it wouldn't work in an RV. It's run by batteries and not any other power source.
That is for the remote unit. This is what I see."Place Receiver Wherever Wires Are Available
The receiver is easy to install and is wired just like a standard 24VAC thermostat. Connect the unit wherever existing wires are available; the old thermostat location, in a furnace closet, in an attic or basement."

From what I see in my trailer the control circuits are 12 vdc.
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Old 09-21-2013, 01:56 PM   #23
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I read the manual and don't see any reason that it wouldn't work in an RV. It's run by batteries and not any other power source.

The remote is battery powered.
I thought the AC and furnace were 120v, I need to go out and check mine.
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Old 09-21-2013, 02:00 PM   #24
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thanks guys I will pass that on to him
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Old 09-21-2013, 02:00 PM   #25
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Mu guess is either a bad electrical connection somewhere in the 110 volt system causing it to have a shutdown condition due to under voltage. Or he has too much airflow on the thermostat and it senses very cold air and thinks it it time to shutoff. Then it warms quickly and turns back on. If by turning it down extremely low, it runs for a good long time I would rule out the electrical issues and check airflow. Do not have the full force of a air vent blowing on the thermostat.
I agree.
a good way to check this is to 1. Adjust the vents away from the thermostat. 2 take a small piece of cardboard about 3" wide and to the best of your ability rap it around the out side of the thermostat. This will prevent air from getting to the temp spring. Then see how it acts. If it still turns the unit off and on I would guess that its time for a new thermostat.
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Old 09-21-2013, 02:01 PM   #26
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That is for the remote unit. This is what I see."Place Receiver Wherever Wires Are Available The receiver is easy to install and is wired just like a standard 24VAC thermostat. Connect the unit wherever existing wires are available; the old thermostat location, in a furnace closet, in an attic or basement." From what I see in my trailer the control circuits are 12 vdc.
My bad. You're absolutely right. It won't work in an RV.
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Old 09-23-2013, 04:16 PM   #27
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Still getting voltage w/ breaker off

Still waiting for my new T-stat to come in but I've been trying to get ready for when it gets here. I've looked at what I have and it is definately soldered on. I also found a voltage meter and with the AC circuit breaker off and the battery disconnect in the disconnect position I'm still getting 24 volts to the wires. Can anyone tell me why this is so? Am I going to get shocked and or cause problems in my trailer? I'm trying to understand what I'm doing...not just do without understanding...if that makes any sense.

Thanks.
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Old 09-23-2013, 04:24 PM   #28
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24v? AC or DC? I imagine they didn't label the breakers the same way they wired them. You need to keep turning off breakers until that goes away.

What brand is this AC system? Dometic? Coleman?
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Old 09-23-2013, 04:34 PM   #29
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Still waiting for my new T-stat to come in but I've been trying to get ready for when it gets here. I've looked at what I have and it is definately soldered on. I also found a voltage meter and with the AC circuit breaker off and the battery disconnect in the disconnect position I'm still getting 24 volts to the wires. Can anyone tell me why this is so? Am I going to get shocked and or cause problems in my trailer? I'm trying to understand what I'm doing...not just do without understanding...if that makes any sense.

Thanks.
Which wires (color) are you touching and getting a 24V reading and is it AC or DC voltage?
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Old 09-23-2013, 04:42 PM   #30
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With the AC circuit breaker off and the battery disconnect switch in the disconnect position I am getting 24V AC when I touch the red wire with the red lead with any other wire with the other lead.

I know the AC circuit breaker is correct because with the AC running if I throw the switch the AC turns off.

Edited to add: My AC unit is an Airxcel. This is what I know about my current t-stat.

R Red + 12 VDC
B Blue -12 VDC
Y Yellow Compressor
GH Green High Fan
GL Gray Low Fan
W White +12 VDC Furnace

I'm guessing that the Red wire turns on the AC. The Blue, I'm not sure. Is it the ground or does it shut off the AC? The others I think I know.

Edited to add even more: When I test VDC I get 12 volts on each wire. When I disconnect the AC power from the outlet I still get 24 VAC. This makes no sense to me. Maybe I'm just not smart enough for this stuff.
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