Is your refrigerator running but not cooling?
You open the fridge and your food is warm. The motor is running but nothing is getting cold. You're on the clock — food starts spoiling within 2–4 hours above 40°F.
This is one of the most common appliance repair calls in the U.S. The good news: several causes are simple and free to fix yourself. The bad news: a few require a professional and can cost $300–$700+.
This guide walks you through every likely cause, what it costs to fix, and exactly when to stop troubleshooting and call a technician.
First: 3 free fixes to try right now
Before spending anything, check these three things. They solve the problem more often than you'd expect.
1. Check the temperature setting
Someone may have accidentally bumped the dial. Set the refrigerator to 37°F and the freezer to 0°F. On Samsung models especially, check for "Demo Mode" or "Showroom Mode" — both compartments will display temperatures but neither actually cools.
2. Clean the condenser coils
Unplug the fridge. On older models, remove the kick plate at the bottom front and vacuum the coils underneath. On newer models, pull the unit away from the wall and clean the coils at the back. Clogged coils are one of the most common — and most preventable — causes of cooling failure. This fix costs $0.
3. Inspect the door seals (gaskets)
Close the fridge door on a dollar bill. If you can pull it out without resistance, the seal is failing. Warm air leaking in forces the compressor to work constantly without ever reaching temperature. Clean the gaskets with warm soapy water first — food residue alone often prevents a proper seal.
8 common causes — from cheapest to most expensive to fix
1. Dirty Condenser Coils
- What it is:
- Coils caked with dust and pet hair can't release heat, so the compressor runs constantly but can't get cold enough.
- DIY or Pro:
- DIY
- Repair cost:
- $0 (cleaning) — $80–$150 if you hire a tech to clean and inspect
- Signs:
- Fridge runs constantly, motor feels hot, cooling is gradual or inconsistent
2. Faulty Door Gasket (Seal)
- What it is:
- The rubber seal around the door edge wears out over time and lets warm air in.
- DIY or Pro:
- DIY-friendly replacement
- Repair cost:
- $50–$150 for a replacement gasket (parts + labor if pro)
- Signs:
- Condensation around door edges, fridge running longer than usual, uneven temperatures
3. Evaporator Fan Not Working
- What it is:
- The evaporator fan circulates cold air from the freezer into the refrigerator compartment. When it fails, the freezer stays cold but the fridge goes warm.
- DIY or Pro:
- Pro recommended
- Repair cost:
- $120–$250 parts and labor
- Signs:
- Freezer is cold, fridge is warm — this symptom almost always points here
4. Condenser Fan Motor Failure
- What it is:
- The condenser fan keeps the compressor and coils cool while the system runs. Without it, the compressor overheats and shuts down.
- DIY or Pro:
- Pro
- Repair cost:
- $150–$300
- Signs:
- Compressor is running but unit isn't cooling, unusual heat at the back of the fridge
5. Start Relay Failure
- What it is:
- The start relay gives the compressor the electrical jolt it needs to turn on. A failed relay means the compressor can't start.
- DIY or Pro:
- Part is inexpensive; diagnosis requires a multimeter
- Repair cost:
- $50–$150 parts and labor
- Signs:
- Clicking sound from back of fridge, compressor not running at all
6. Faulty Thermostat or Control Board
- What it is:
- The thermostat tells the compressor when to run. On newer electronic models, the main control board manages everything — a board failure causes erratic temperatures or complete cooling loss.
- DIY or Pro:
- Pro
- Repair cost:
- $150–$400 depending on brand and model
- Signs:
- No response when adjusting temperature controls, random temperature swings
7. Compressor Failure
- What it is:
- The compressor is the heart of the cooling system. It circulates refrigerant through the entire system. When it fails, nothing cools.
- DIY or Pro:
- Pro only
- Repair cost:
- $400–$700+ parts and labor
- Signs:
- No cooling at all, loud clicking or humming from back of unit, compressor runs constantly without producing cold
Important: On a refrigerator older than 10 years, a compressor replacement often isn't worth it. At $500–$700 for the repair, you're spending close to half the cost of a new unit on an appliance already past 75% of its average 13-year lifespan. Use our Repair vs. Replace Calculator to run the numbers.
8. Refrigerant Leak
- What it is:
- A leak in the sealed system allows refrigerant to escape, slowly reducing cooling capacity until the unit stops cooling entirely.
- DIY or Pro:
- Pro only — refrigerants are hazardous and require licensed handling
- Repair cost:
- $300–$600+ depending on severity
- Signs:
- Gradual cooling loss over days or weeks, oily residue near the compressor, hissing sound
Repair cost summary
| Problem | DIY possible? | Estimated cost |
|---|---|---|
| Dirty condenser coils | Yes | $0–$80 |
| Door gasket replacement | Yes | $50–$150 |
| Evaporator fan | No | $120–$250 |
| Condenser fan motor | No | $150–$300 |
| Start relay | Sometimes | $50–$150 |
| Thermostat / control board | No | $150–$400 |
| Compressor replacement | No | $400–$700+ |
| Refrigerant leak | No | $300–$600+ |
Freezer cold but fridge warm? That's a specific problem
If your freezer is working fine but the refrigerator compartment is warm, the culprit is almost always the evaporator fan. The fan's job is to pull cold air from the freezer coils and push it into the fridge. When it stops, the freezer stays cold but the fridge doesn't get the airflow it needs.
This is a $120–$250 repair — one of the more affordable professional fixes on this list.
When to repair vs. replace
Use this rule of thumb: if the repair costs more than 50% of what a comparable new refrigerator would cost, and your unit is past 60% of its expected lifespan (average refrigerator lifespan is 13 years), replacement is usually the smarter long-term decision.
Quick math example
- Your fridge is 9 years old (69% of lifespan)
- Compressor quote: $600
- A comparable new fridge: $900
- The repair is 67% of replacement cost
- Verdict: Replace
Run your own numbers with our free Repair vs. Replace Calculator.
How much does a refrigerator repair service call cost?
Most appliance technicians charge a diagnostic fee of $75–$150 just to come out and identify the problem. This fee is often applied toward the repair if you proceed.
National average repair costs by problem:
- Minor repairs (coils, gaskets, relay): $80–$200
- Mid-range repairs (fans, thermostat): $150–$350
- Major repairs (compressor, sealed system): $400–$700+
Prices vary by region. Urban markets (New York, San Francisco, Los Angeles) typically run 20–35% higher than the national average.
Find a refrigerator repair pro near you
Don't wait on a cooling problem — food spoils fast and a small issue can become a compressor failure if the unit runs stressed for too long.
Find a vetted refrigerator repair tech →All technicians in the Appliance Repair Advisor directory are background-checked, license-verified, and reviewed by real customers. Many offer same-day or next-day service.
Frequently asked questions
How long can food stay safe in a fridge that's not cooling?
The FDA recommends treating any food stored above 40°F for more than 2 hours as unsafe. If your fridge has been warm overnight, check everything carefully before consuming.
Should I unplug my refrigerator if it's not cooling?
If the motor is running constantly with no cooling, yes — unplug it for 15–20 minutes. This soft reset can clear minor electronic issues and sometimes resolves the problem entirely.
How long does a refrigerator repair take?
Most repairs are completed in a single visit of 1–2 hours. If a part needs to be ordered, expect 2–5 business days for a return visit.
Is it worth repairing a refrigerator that's more than 10 years old?
Depends on the repair. A $150 fan replacement on a 10-year-old fridge is usually worth it. A $600 compressor replacement on the same unit probably isn't.
Can dirty coils really stop a fridge from cooling?
Yes — this is one of the most common causes. Coils clogged with dust and pet hair force the compressor to overwork without being able to shed heat effectively. Clean them twice a year.
Data based on national service-call averages from verified technicians. Costs are estimates and vary by region, brand, and model. Last updated June 2026.