Written by
Nora Halvorsen Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeOP (Freezer)
ApplianceRefrigerator
What OP in the freezer window means
The freezer thermistor is the sensor that measures temperature in the freezer. OP in that compartment’s window says the sensor circuit is open.
Refrigerators it concerns
Three service data sheets cover Electrolux bottom-freezer and ice-and-water refrigerators fitted with a user interface board. Models named in them include EI23BC30KS, EW28BS85KS and EI23BC65KS. One sheet lists the freezer sensor as OPEN when the display reads OP.
Technician territory
A diagnostic mode shows the temperature the freezer thermistor senses, to be compared with a gauge.
The display reads OP when the sensor is open.
The power cord should be disconnected before anyone works on the refrigerator.
The sheets provide no owner steps. Write down the model number and which window carries OP.
Model compatibility: Electrolux reuses codes across series and model years, so OP (Freezer) may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
OP in the freezer display window means the freezer thermistor, the compartment temperature sensor, reads as open.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
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Book a specialist visit for a clear estimate and approval before any repair.
Warm compartments, leaks, noises, dispenser trouble or a flashing code: diagnosis and repair of Electrolux refrigerators across San Francisco and the Bay…
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