A Samsung RF28R7351SR refrigerator not cooling is a serious problem — especially in Valrico, FL, where summer temperatures regularly hit 95°F and a warm fridge can mean hundreds of dollars of spoiled groceries. This French door model is one of the most popular refrigerators in Hillsborough County, and Brandon Appliance Pros has serviced dozens of them. Here’s what’s likely causing the problem and how we fix it.
Most Common Causes: Samsung RF28R7351SR Not Cooling
1. Evaporator Coils Frozen Over
This is the #1 cause we find on Samsung French door refrigerators in Florida. The defrost system fails to melt frost buildup on the evaporator coils, and eventually the coils freeze solid — blocking all airflow into the refrigerator compartment. The freezer may still feel cold while the fridge section warms up. You may also hear the fan running constantly. Florida’s humidity accelerates this problem. Repair involves manually defrosting the coils, then replacing the defrost heater, thermostat, or control board depending on what caused the failure.
2. Faulty Evaporator Fan Motor
The evaporator fan circulates cold air from the freezer into the refrigerator section. If this fan motor fails, the fridge stops cooling even if the freezer remains cold. On the RF28R7351SR, this fan is located behind the back wall of the freezer compartment. Signs: you open the freezer and don’t feel moving air, or the fan sounds like it’s struggling. Part #DA31-00146E is the replacement motor for this model.
3. Dirty or Blocked Condenser Coils
The RF28R7351SR has condenser coils located underneath the unit. In Florida’s dusty environment, these coils collect pet hair, dust, and debris and can become severely restricted within 12–18 months. When the condenser can’t release heat efficiently, the compressor overworks and the refrigerator loses its ability to maintain temperature. This is a maintenance issue — cleaning the coils is a 30-minute fix that can restore full cooling performance.
4. Failing Compressor or Start Relay
If you hear a clicking sound near the bottom-rear of the fridge every few minutes, the start relay is likely failing. This small, inexpensive part ($15–$40) is what starts the compressor — and when it fails, the compressor never runs and the fridge warms up completely. This is one of the easiest and most satisfying refrigerator repairs: replace a part the size of a matchbox and restore full cooling. If the relay is fine but the compressor itself is dead, repair cost increases significantly — we’ll give you an honest assessment of whether repair vs. replacement makes sense.
5. Refrigerant Leak
Less common but possible. If the RF28R7351SR has a refrigerant leak, the system gradually loses its ability to cool. You’ll notice the fridge cooling less and less over days or weeks. Refrigerant repair requires an EPA-certified technician — our team is certified and equipped to handle this correctly.
What Our Technician Does On-Site in Valrico
- Check temperature readings — We measure actual compartment temps vs. set temps to confirm the cooling failure and its severity.
- Run Samsung diagnostics — The RF28R7351SR has a built-in diagnostic mode. We run error codes to pinpoint the failure instantly.
- Inspect evaporator coils — We check for frost buildup by accessing the freezer back panel. Frozen coils are immediately visible.
- Test the defrost system — Heater, thermostat, and timer are each tested individually.
- Test the evaporator fan and condenser fan — Both are checked for proper operation.
- Check compressor and start relay — We measure compressor amperage and test relay continuity.
Most Samsung RF28R7351SR cooling repairs are completed same-day. We stock common Samsung refrigerator parts and serve Valrico, Brandon, Lithia, and all of Hillsborough County.
Samsung RF28R7351SR Error Codes for Cooling Issues
| Error Code | Meaning | Likely Cause |
|---|---|---|
| 5E / SE | Defrost sensor error | Defrost sensor or wiring |
| 8E | Ice maker sensor | Ice maker sensor failure |
| 14E | Ice maker fan | Ice maker fan motor |
| 40E | Ice room temp sensor | Sensor replacement |
| 84C | Compressor issue | Compressor or inverter board |
Frequently Asked Questions
My Samsung fridge freezer is cold but fridge section is warm — what’s wrong?
This is a classic sign of frozen evaporator coils or a failed evaporator fan motor. Cold air is being produced but can’t circulate into the fridge section. This is diagnosable and fixable same-day in most cases.
How much does it cost to repair a Samsung RF28R7351SR?
Typical repairs range from $150–$450 depending on the cause. A start relay replacement is at the low end (~$150 including parts and labor). A defrost heater + thermostat replacement runs $200–$300. Compressor replacement is at the high end — at that point we’ll discuss whether it makes financial sense given the appliance’s age.
Do you service Samsung refrigerators in Valrico and surrounding areas?
Yes. Brandon Appliance Pros serves Valrico, Brandon, Lithia, FishHawk, Plant City, and Tampa. Call 813-421-4901 for same-day availability.
Samsung fridge not cooling? Call Brandon Appliance Pros at 813-421-4901 or email admin@brandonappliancepros.com. We offer fast refrigerator repair throughout Valrico and all of Hillsborough County.