How much does it cost to fix the OP error on a Frigidaire refrigerator?

Typically $220–$480 in the U.S., depending on model, access, parts availability and local labor.

Frigidaire Refrigerator OP — Open Freezer or Fresh-Food Thermistor

Editorial & technical review

Written by ApplianceWorth Editorial Team
Technically reviewed by Victor — appliance technician
Last reviewed 2026-07-01
Applies to Frigidaire refrigerators
Confidence medium
Sources Manufacturer service documentation and field-repair experience · Methodology · Report a correction

What this code means

The control detects an open circuit in either the freezer (FZ) or fresh-food (FF) temperature-sensor circuit. The display position identifies which compartment is affected.

Most likely causes

A thermistor has failed open
A sensor connector is unplugged or corroded
A wire is broken, pinched or backed out of a connector
The main control input circuit is damaged

Safe checks for the owner

Confirm which display shows OP: OP on the FZ side indicates the freezer thermistor; OP on the FF side indicates the fresh-food thermistor.
Check actual compartment temperatures and protect food if cooling is unstable.
Disconnect power for five minutes and retry once. Do not remove interior panels if they are frozen in place.

Estimated U.S. repair cost

$220–$480, depending on model, access, parts availability and local labor.