Can I use IRT 207 to take inside temperatures of refrigerators and freezers?

SOURCE: refrigerator freezes things the freezer works fine:

Most common is a dirty condenser coil. If you have not cleaned it recently vacuum and brush the coil underneath and the back bottom compressor compartment. Blocked air flow will cause erratic temps in the refrigerator section.

SOURCE: Freezer and refrigerator temperature warmer and

Frank, although the refrigerator is probably frost free (automatic defrost) there are a few reasons that the defrost cycle would fail. The defrost bimetal thermostat that controls the defrost cycle can fail. This bimetal is closed and opens to stop the defrost cycle when enough heat is given off. I do not know about the Jenn Air, but I think most refrigerators use a similar strategy. A second problem that is possible is the defrost timer fails (or the wires that run it). Defrost may be a daily function. Another possibility is a bad defrost coil or connection to it. Those are the 3 major components of defrost cycles.

You will have to manually defrost the freezer to prevent spoiling food. If you have to defrost regularly then one of those components is probably bad.

In general, not directly related to frost build up: Keep the refrigerator freezer section clear around the air grilles (not stuffed and no plastic bags that block air flow). If the refrigerator coils in back (freee convection) or underneath (forced convection) are really dirty, then cooling will also be a problem (but probably not related to frost buildup).

SOURCE: Touch Temperature Controls not working

Unplugging and replugging worked great! (We left it unplugged for about one minute. The motor started up almost instantly but we still had no numbers on display. I discovered that after replugging, you need to touch one of the up or down arrows for the display to reappear. What a lifesaver this was! Thanks so much.

SOURCE: freezer works, refrigerator doesn't, motor is making an odd noise

frost free refrigerators consists of -
1)Heater
2)Thermostat(bimetal)
3)timer

heater and bimetal are in freezer section. First check heater. Give it direct power supply. If it heats up,its OK. Then check bimetal. Immerse it in Ice. check continuity using a continuity tester. If its showing continuity its OK too.

change timer if both heater and bimetal are OK.

SOURCE: Electrolux freezer runs continuously

check thermostat