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AC thermostat discrepancy

Posted on 6/25/24 at 10:12 am
Posted by Success
Member since Sep 2015
1888 posts
Posted on 6/25/24 at 10:12 am
I have two units. Using an IR temp laser, one thermostat reads the same as the thermometer. The other reads 1-2° less that the thermometer.

Is this discrepancy from the thermostat temp vs the thermometer acceptable?
Posted by notsince98
KC, MO
Member since Oct 2012
20120 posts
Posted on 6/25/24 at 10:14 am to
almost all digital t-stats have a setting where you can adjust an offset so that it reads correctly if it is off a bit.
Posted by Success
Member since Sep 2015
1888 posts
Posted on 6/25/24 at 10:36 am to
Yea. Mine has that option. But I’m wondering if the ac is in a hot spot. Bc the rooms feel comfortable that this ac goes to.
Posted by notsince98
KC, MO
Member since Oct 2012
20120 posts
Posted on 6/25/24 at 10:54 am to
quote:

Yea. Mine has that option. But I’m wondering if the ac is in a hot spot. Bc the rooms feel comfortable that this ac goes to.


You are wondering if the AC is in a hot spot or the t-stat is in a hot spot?
Posted by ItzMe1972
Member since Dec 2013
11497 posts
Posted on 6/25/24 at 11:11 am to
There is some variance on stats. I had three I picked up for a rental and they did not all show the same temperature.

I have also had them mounted on walls that the air conditioner was sitting behind. This open area to the attic caused the wall to be several degrees hotter.when screwed to the wall.
Posted by CrawDude
Baton Rouge
Member since Apr 2019
5610 posts
Posted on 6/25/24 at 2:34 pm to
As stated, it could be the thermostat off-set. What is the thermostat off-set? . I would be not be concerned about 1 to 2 F difference. I have 2 Accurite temperature - humidity monitors (same model) sitting right next to each other on bookshelf as I type this, one reads 75 F & 47% RH, the other 74 F & 43% RH, the house HVAC thermostat about 6 feet away is set at 74 F & is reading 40% RH.
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