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Old 08-09-2016, 05:50 PM   #1
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Advent AC135 conversion to digital thermostat

I have a 2014 Dutchmen with Advent AC135 A/C and ACTH11 analog thermostat. I am having issues with freezing up. I wanted the ACRG15 kit but this has been replaced with the ACRG14 and ACTH12.
Is there any installation concerns with replacing my existing components with these? I read where these are not compatible with the AC135?
Is the wiring between the ACTH12 digital thermostat to the AC unit the same?

Regards,
Dave Peterson
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Old 08-09-2016, 06:00 PM   #2
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Hi Dave,
Welcome to the forum.

Before you invest in a new thermostat, you might want to pull the shroud off of your A/C and check the placement of your thermistor against the coils. Sometimes the thermistor isn't making contact with the coils and that will cause freeze up. (Its the copper wire looking thingy that should be clipped against the coils).
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Old 08-09-2016, 07:19 PM   #3
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Quote:
Originally Posted by Thom View Post
Hi Dave,
Welcome to the forum.

Before you invest in a new thermostat, you might want to pull the shroud off of your A/C and check the placement of your thermistor against the coils. Sometimes the thermistor isn't making contact with the coils and that will cause freeze up. (Its the copper wire looking thingy that should be clipped against the coils).
Thanks for the reply Thom - I did ensure the location and positioning of the Freeze sensor.
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Old 08-09-2016, 09:50 PM   #4
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As Paul Myhre indicated I also see that the ducting design severely restricts the airflow.
When I crack open the cold side of the ceiling cover I can avoid the unit freezing up.
This is why I want to switch to the ceiling cover where you can open a direct vent.

When I add the digital thermostat I am unsure about the wiring.
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