Samsung Refrigerator code **31C** is associated with **cool select room fan error**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. Samsung uses overlapping code conventions across model years and regions. This page keeps the appliance context attached to the code so a same-looking string from another product family is not misapplied. The recorded display form is **31C**. Search normalization stores it as **31C** while preserving the characters a homeowner actually sees.
Reviewed by Ethan Mercer · Last reviewed August 17, 2026
Written by
Ethan Mercer Appliance Repair Content SpecialistPublished August 17, 2026Updated August 22, 2026Technically reviewed August 17, 2026
Content status:
Verified
Error code31C
ApplianceRefrigerator
Quick answer
Cool Select Room fan error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so 31C 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
Samsung Refrigerator code **31C** is associated with **cool select room fan error**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. Samsung uses overlapping code conventions across model years and regions. This page keeps the appliance context attached to the code so a same-looking string from another product family is not misapplied. The recorded display form is **31C**. Search normalization stores it as **31C** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
One clue that supports the 31C diagnosis is that air movement may be weak, absent, noisy, or restricted.
On affected Samsung refrigerator models, cooling or drying performance can deteriorate as airflow drops.
On affected Samsung refrigerator models, a fan can scrape, stop, or run abnormally if ice, debris, lint, or a mechanical issue is present.
A symptom that fits 31C is that 31C appears and the refrigerator may show behavior related to cool select room fan error.
One clue that supports the 31C diagnosis is that cooling, airflow, ice-making, defrost, or temperature performance may become intermittent depending on the affected subsystem.
Why it happens
Possible causes
varies by model/region — cross-region baseline — Cool Select Room fan error
Before you call
Safe checks you can make
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
To rule out an accessible cause, clear user-accessible vents, filters, lint screens, or exterior airflow paths.
With 31C recorded, listen for abnormal fan noise without removing live panels.
With 31C recorded, check for visible frost, lint, debris, or a crushed external duct where relevant.
Before requesting service for 31C, do not force frozen panels or reach into moving fan assemblies.
To rule out an accessible cause, photograph the code before resetting or unplugging the refrigerator.
Before requesting service for 31C, check doors, visible airflow/ice obstructions, water/ice-bin seating, or demo mode only when relevant.
Important safety warning. Safety takes priority over clearing 31C. Protect food if temperatures are no longer safe. Do not open the sealed refrigeration system or energized inverter/compressor circuits.
Get help
When to request repair service
If the owner-accessible checks do not clear 31C, If airflow paths are clear but the fan-related code returns, the motor, feedback sensor, wiring, ice/defrost condition, or control may need testing. The repair should confirm the monitored function and its feedback before any board or component is condemned.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
Resetting can clear a temporary state, not a persistent issue. If **31C** comes back, preserve the code and move to the safe checks or model-specific service path.
Short owner-accessible checks may be reasonable when the appliance is safe. Persistent **31C**, worsening performance, or any electrical/water/heat hazard is a reason to stop use.
The code alone is not enough to justify a part. **31C** should narrow testing to the affected function; the final cause still has to be verified on the exact model.
The same-looking code can be reused on another Samsung appliance family or reformatted by region/model year. Match the appliance type and exact model before applying a meaning. This page therefore keeps **Refrigerator 31C** separate from same-looking codes used by other Samsung appliance families.
References
Sources & references
Samsung Canada internal RF32FMQDBSR/AA service error-code pages (support-cacyber.samsung.com)
