OP Moderate Moderate DIY

Frigidaire Refrigerator OP — Sensor Circuit Open

Frigidaire Refrigerator · Error code OP

What OP Means

Open-circuit indication on a temperature sensor input — generic sensor-open fault on some Frigidaire models.

Symptoms

  • OP shown in temperature display
  • Cooling control degraded
  • Possible defrost issues

Common Causes

1
Open thermistor

Sensor element failed.

2
Disconnected sensor

Connector unseated.

3
Broken wire

Conductor severed.

How to Fix It

  1. Unplug refrigerator.
  2. Identify which compartment displays OP (fresh food side or freezer side).
  3. Ohm the corresponding thermistor and replace if open.
  4. Reseat or repair wiring.
  5. Replace main board if input is dead.

Parts You May Need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

Common replacement Thermistor sensor View on Amazon→

More Frigidaire Refrigerator Codes

1F 1F — Ice Maker Fault 1 SH 1 SH — Fresh Food Sensor Shorted 1 SY 1 SY — Fresh Food Sensor Open 2 SH 2 SH — Freezer Sensor Shorted 3 SH 3 SH — Evaporator Sensor Shorted 3 SY 3 SY — Evaporator Sensor Open

All Frigidaire codes → All refrigerator codes →

Verified against manufacturer documentation: frigidaire.com

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.