- Appliances
- Refrigerators
PC ER
Samsung PC ER on a refrigerator: communication error between parts
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
PC ER or PC CH means a communication error between parts of the Samsung fridge. Unplug it, disconnect and reconnect the wire harness above the door, and restore power. If it returns, request service.
Safety first
Stop and check this first
- Touch the door harness only with the fridge unplugged. Do not open covers or handle mains wiring: if the harness is not in plain view, leave it to the technician.
Safe checks you can perform
- Reset and reconnect the door harness
- Whether it followed a storm or power cut
- Food temperature
Leave these tasks to a qualified professional
- Do not attempt this professional task: Electrical check if it repeats with storms
- Do not attempt this professional task: Finding the communication fault
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Electrical check if it repeats with storms
What they doIf the error returns after every power surge, an electrician checks the socket and the circuit that feeds the fridge.
They must show youthe socket measurement.
In writingthe condition of the installation and what was corrected.
Finding the communication fault
What they doWith the fridge unplugged, the technician checks the door harness and wiring and, if they are fine, the boards that talk to each other.
They must show youthe harness and wiring checked and where the break was.
In writingthe cause and the replaced part with its reference.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Checks and evidence, step by step
Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
- 1
Reset and reconnect the door harness
No special tools
Procedure
- Who:
- you, only with the fridge unplugged.
- How:
- unplug the fridge, disconnect and reconnect the wire harness above the door, as Samsung instructs, and plug it back in.
- Result that matters:
- PC ER does not reappear.
- If it clears and stays clear:
- it was a connection or a one-off fault; note the date.
- If it returns:
- the problem is not that connection; request service.
- Evidence to keep:
- a photo of the harness before touching it and of the panel afterwards.
Do it only with the plug out of the socket. If reaching the harness means removing covers with tools, stop: that is the technician's job.
Evidence: Samsung USA refrigerator error codes · Common Samsung refrigerator error codes and their meaning
- 2
Whether it followed a storm or power cut
No special tools
Procedure
- Who:
- you.
- How:
- recall whether the error appeared after a storm, a power cut or a tripped breaker.
- Result that matters:
- linking the error to a power surge, a cause Samsung lists.
- If it did:
- the reset will probably solve it; watch that it does not return.
- If nothing happened:
- the connection or wiring becomes more likely.
- Evidence to keep:
- the date and time of the electrical event.
Evidence: Common Samsung refrigerator error codes and their meaning
- 3
Food temperature
No special tools
Procedure
- Who:
- you.
- How:
- put an appliance thermometer in the fridge and another in the freezer, and keep the doors closed while the error is being sorted out.
- Result that matters:
- the CDC sets 40 °F (about 4 °C) or below in the fridge and 0 °F (about -18 °C) or below in the freezer.
- If the readings are within range:
- the food is still protected; check the thermometers again every few hours.
- If the fridge is above 40 °F:
- with the door closed, the CDC gives the fridge 4 hours at most and a full freezer 48 hours (24 if half full). Frozen food that still has ice crystals or is at 40 °F or below can be refrozen. When in doubt, throw it out without tasting it.
- Evidence to keep:
- a photo of each thermometer with the time and a list of what you threw away.
Evidence: Keep Food Safe After a Disaster or Emergency
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Appliances
- Brand
- Samsung
- Product type
- Refrigerators
Known code variants
- error PC ER Samsung
- PC CH
- PC Er
- PCER
- Samsung PC ER
- Samsung PC ER frigorífico
- Samsung refrigerator PC ER
What it means
Samsung groups PC ER and PC CH as a communication error: the control stops receiving data from another part of the fridge. Samsung Canada lists a power surge or a loose door connection as causes. Its home step is to unplug the appliance, disconnect and reconnect the wire harness above the door and restore power. If the error returns, Samsung refers you to service. The code does not say which part of the link fails: connector, wiring or board.
Warnings and stop conditions
- Mediumeditorial warning
Touch the door harness only with the fridge unplugged. Do not open covers or handle mains wiring: if the harness is not in plain view, leave it to the technician.
Evidence: Samsung USA refrigerator error codes · Common Samsung refrigerator error codes and their meaning
Symptoms and causes
Probable causes · in order
- Loose connection at the door harnessPossible
Samsung lists it as a possible cause. It clears after you disconnect and reconnect the harness with the fridge unplugged.
Evidence: Samsung USA refrigerator error codes · Common Samsung refrigerator error codes and their meaning
- Power surgePossible
Samsung Canada lists it as another cause. It fits if the error appeared after a storm or power cut, and the reset usually clears it.
Evidence: Common Samsung refrigerator error codes and their meaning
- Wiring or board faultPossible
If PC ER returns after the reset and reconnection, Samsung refers you to service: the technician must find the section that is not communicating.
Evidence: Samsung USA refrigerator error codes
Virtual technician
Does PC ER still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Samsung USA refrigerator error codes
Samsung · official_doc
- 2
Common Samsung refrigerator error codes and their meaning
Samsung · 2026 · official_doc
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