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Just Wandering 1

anywhere USA

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Posted: 01/26/19 05:33pm Link  |  Quote  |  Print  |  Notify Moderator

Your AC is working as designed. It is designed to run on high fan until within a certain preset temp then reduce to low fan to hold the temp.

sk734

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Posted: 02/06/19 07:03am Link  |  Quote  |  Print  |  Notify Moderator

Update
Dometic 3 wire single zone ac. Changed board and updated stat. Runs then stops until reinitialize or turn off and back on? No ice up works great when running. Could use some help. Anyone know the cure? Thanks in advance.

rjsurfer

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Posted: 02/09/19 05:27am Link  |  Quote  |  Print  |  Notify Moderator

sk734 wrote:

Update
Dometic 3 wire single zone ac. Changed board and updated stat. Runs then stops until reinitialize or turn off and back on? No ice up works great when running. Could use some help. Anyone know the cure? Thanks in advance.


I have the same problem with my single zone unit. AC will run until temp is reached then shut off but won't come back on. I have to run through all the thermostat settings then it will restart.

I don't think it's a nice up issue either but haven't gone on the roof and checked yet.

Ron W


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Learjet

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Posted: 02/09/19 10:44am Link  |  Quote  |  Print  |  Notify Moderator

sk734 wrote:

Update
Dometic 3 wire single zone ac. Changed board and updated stat. Runs then stops until reinitialize or turn off and back on? No ice up works great when running. Could use some help. Anyone know the cure? Thanks in advance.


My bed room does that if I leave it on LO fan overnight....I just leave it on HI fan and its happy.


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Posted: 02/09/19 10:47am Link  |  Quote  |  Print  |  Notify Moderator

from the manual for my thermostat:

"Special Features

Auto Fan

When auto fan is selected the fan speed will vary depending on the
difference between the temperature set-point and the room temperature.
In auto fan the compressor and fan cycle On and Off with the
thermostat.

When the difference is:
>5º The fan operates on HIGH
<4º The fan operates on LOW"

The fan will stop and restart when it changes speed and the compressor will continue to run. Thought it was broken like most when I first got my current rig.

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