Frigidaire S x S refrigerator too cold

Items in refrigerator section are freezing, what all can I check? This is a side by side model, can I check thermostat with ohmmeter?

I cannot find any info on the given model number.
Tried here, Sears and the Frigidaire site.
Please check it.

FRA units come up as air conditioners.

Sorry, it’s FRS

Here are your parts
Parts for Frigidaire FRS23R4CW0 Refrigerator - AppliancePartsPros.com

See the attachment for the tech sheet.

First thing to check is the freezer temperature.
Shuld be between 0 and 5 degrees F.
Could be it is just too cold.

Next check that the damper opens/closes.
FRS23R4.pdf (405.4 KB)