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Old 08-09-2016, 04:15 PM   #1
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Duo-Therm Analog Thermostat suddenly too low

The set points suddenly seem to be about 20F too low. To make the AC come on I have set it in and around 50F. Is this anything I can recalibrate myself?

It's the same as this one:
I might need a new thermostat?

Might be time to upgrade to a Digital Thermostat.
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Old 08-09-2016, 04:24 PM   #2
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Originally Posted by thomsonr View Post
The set points suddenly seem to be about 20F too low. To make the AC come on I have set it in and around 50F. Is this anything I can recalibrate myself?

It's the same as this one:
I might need a new thermostat?

Might be time to upgrade to a Digital Thermostat.
Get rid of that POS and put in a digital. Best mod you'll do.

Mine was a Coleman-Mach and I replaced it with a Honeywell RTH111. A little different, perhaps, but I've attached some info on the wiring swap.

For more plug and play, you can get a Duo-Therm digital. See here:

Dometic Single Zone LCD Control Thermostat 3313192.000 - $27.98
Attached Files
File Type: pdf Thermostsat wiring.pdf (121.6 KB, 6 views)
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Old 08-09-2016, 06:26 PM   #3
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Went to a Honeywell also.....no more problems.
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