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Samsung Refrigerator PC ER / PC CH Error

Last reviewed 11 November 2026 · Checked against the official Samsung support sources linked on this page. Confirm applicability and procedures using your specific model's manual.
PC ER
Communication Error — a communication error between components in the refrigerator; it can occur if there was a recent power surge or if the doors are not properly connected.

PC ER is the only Samsung refrigerator code whose published procedure includes a physical reconnection — the wire harness above the door — and Samsung puts the power cut first, before you touch it.

What to check first

PC ER and PC CH are Samsung's Communication Error, filed as one entry in its US list, its Canadian table and its UK article. Samsung US: this is a communication error between components in the refrigerator, and it can occur if there was a recent power surge or if the doors are not properly connected. Samsung Canada's causes match: a power surge, or a loose door connection.

Safety first

Common causes

PC ER — the code shown when the self-test fails

On the models and in the documents Samsung provides for the self-test, PC ER is the code that appears on the display when the self-test fails.

PC CH — the code shown after the test

PC CH is the code that appears after the test.

Step-by-step checks

  1. Cut the powerUnplug the refrigerator or turn off power at the circuit breaker (Samsung US). Samsung UK phrases the same restart as powering off and unplugging the fridge.
  2. Disconnect and reconnect the wire harness above the doorSamsung US's central step: disconnect and reconnect the wire harness above the door — reseating the connection the error is about.
  3. Restore powerRestore power to the fridge and watch the display.
  4. If the code returns — request serviceSamsung: if the code returns, visit the Support Center to request service.

When to call a technician

PC ER's procedure is Samsung's own and it is complete as published: power off, reseat the door harness, power on. A code that survives a reseated harness is service territory — quote the code and that the harness step was done.

Model differences

What you haveWhat changes
PC ER vs PC CHPC ER is the code that appears on the display when the self-test fails, on the models and in the documents Samsung provides for the self-test; PC CH is the code that appears after the test. Samsung's US, Canadian and UK consumer lists file the pair as one entry, with the wire-harness procedure printed in the steps below.
Models with door displaysThe harness step applies where the door carries the display/controls connected from above the door; your model manual shows its exact location.

One-page checklist — PC ER

Official Samsung references

Frequently asked questions

What does PC ER mean?

A communication error between components in the refrigerator (Samsung US). PC CH is the same entry in its other display form. Causes Samsung names: a recent power surge, or the doors not being properly connected.

Where is the wire harness I have to reconnect?

Samsung locates it "above the door". Its procedure is: cut the power first, disconnect and reconnect that harness, then restore power.

Is PC ER the same as 88 88?

No. 88 88 is defined by Samsung as a communication fault inside the voltage/power family, answered with a 60-second power cut. PC ER is the communication error whose procedure reseats the door harness. Different codes, different procedures.

Related Samsung refrigerator codes

88 88
Voltage or Power Error — the surge family that includes a communication fault.
41 or 42
Family Hub software issue — the other display-electronics state.
21E
Freezer Fan Error — another feedback/communication-style fault.