Samsung Refrigerator code **25C** is associated with **refrigerator defrost heater error**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. The useful diagnostic value of the code is the subsystem it identifies. A good repair process confirms the symptom, checks the accessible external conditions, and then follows the model-specific circuit only if the display returns. The recorded display form is **25C**. Search normalization stores it as **25C** 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 code25C
ApplianceRefrigerator
Quick answer
Refrigerator defrost heater error.
Model compatibility: Samsung can reuse or reformat codes across series and model years, so 25C 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 **25C** is associated with **refrigerator defrost heater error**. The display identifies the system or condition the control detected, but it does not by itself prove which individual part should be replaced. The useful diagnostic value of the code is the subsystem it identifies. A good repair process confirms the symptom, checks the accessible external conditions, and then follows the model-specific circuit only if the display returns. The recorded display form is **25C**. Search normalization stores it as **25C** while preserving the characters a homeowner actually sees.
Signs
Symptoms you may notice
The 25C display becomes more meaningful if heating can be weak, absent, excessive, or stop unexpectedly.
On affected Samsung refrigerator models, the appliance can pause when the control detects an unsafe or implausible temperature condition.
When the 25C condition is present, drying, washing, cooking, or defrost performance can change depending on the appliance.
One clue that supports the 25C diagnosis is that 25C appears and the refrigerator may show behavior related to refrigerator defrost heater error.
A symptom that fits 25C is that cooling, airflow, ice-making, defrost, or temperature performance can become intermittent depending on the affected subsystem.
These are simple, non-hazardous checks only. If anything is unclear, stop and contact a technician.
The next non-invasive check is to confirm the selected cycle or cooking mode is supposed to use heat.
With 25C recorded, check airflow, vents, filters, water supply, or door closure when those conditions affect temperature.
A safe owner-level check is to allow the appliance to cool before any owner-accessible inspection.
To rule out an accessible cause, do not open energized high-voltage or heating sections.
Before requesting service for 25C, photograph the code before resetting or unplugging the refrigerator.
With 25C recorded, verify doors, visible airflow/ice obstructions, water/ice-bin seating, or demo mode only when relevant.
Important safety warning. When working around a refrigerator that shows 25C, keep the checks external and non-invasive. 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
Once 25C has returned after the safe checks, A returning heating/over-temperature code after external checks requires model-specific testing of sensors, heaters/ignition, relays, wiring, airflow, or control electronics. Preserve any accompanying noise, water level, temperature, or operating-stage details for the technician.
Book your repair
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You can try the one reset Samsung documents for the model, but **25C** returning afterward means the condition still exists. Note the operating stage instead of cycling power repeatedly.
Continue only if the appliance is otherwise safe and the owner-level checks are appropriate. Stop for leakage near electrical parts, smoke, burning odor, arcing, gas concerns, repeated breaker trips, uncontrolled heating, or unsafe temperatures.
Treat **25C** as a starting point, not a replacement instruction. Wiring, feedback signals, operating conditions, and electronic controls can mimic a failed component.
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 25C** 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)
