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 a short circuit or implausibly low resistance in either the freezer (FZ) or fresh-food (FF) temperature-sensor circuit. The side of the display identifies the compartment.
Most likely causes
- The thermistor is internally shorted
- Moisture or corrosion is bridging a connector
- The sensor wires are pinched together or damaged
- The main control sensor-input circuit is faulty
Safe checks for the owner
- Identify the affected side: SH on the FZ display points to the freezer sensor; SH on the FF display points to the fresh-food sensor.
- Check actual food temperatures and move perishables if necessary.
- Reset power once. If the code returns, avoid repeatedly clearing it because temperature regulation may be inaccurate.
Estimated U.S. repair cost
$220–$480, depending on model, access, parts availability and local labor.