Start Here: The Basic Checks
1. Is It Actually Plugged In?
It sounds too obvious to mention, but a loose power cord or tripped breaker is more common than most homeowners expect. Pull the refrigerator away from the wall and confirm the cord is fully seated in the outlet. Then check your electrical panel. A tripped breaker will sit in the middle position rather than fully on or off—flip it completely off, then back on. If it trips again immediately, there may be an underlying electrical fault. Call us at (647) 977-2626 to arrange a service visit before the problem gets worse.
2. Test the Door Seal
A worn or damaged door seal bleeds cold air continuously, forcing the compressor to run longer and harder while the cabinet temperature slowly climbs. Testing it takes about thirty seconds:
- Place a dollar bill halfway in the door and close it firmly.
- If the bill slides out with little or no resistance, the seal isn’t gripping properly.
- Work around the entire door perimeter—gaskets often fail in one spot while the rest looks fine.
A faulty door seal is one of the more straightforward fixes on this list. Sometimes the door simply needs realignment; other times the gasket itself needs replacing. Either way, it’s a repair that restores efficiency quickly and prevents unnecessary wear on the compressor.
Intermediate Checks: The Cooling System
3. Dirty Condenser Coils
The condenser coils are responsible for releasing heat from the refrigerant to the surrounding air. When they’re coated in dust, pet hair, and debris, the fridge can’t shed heat efficiently—and cooling performance drops noticeably.
Where to find them:
- On most models, coils run along the back lower section of the unit. Unplug and pull the refrigerator forward to access them.
- Certain brands—Samsung, LG, and Whirlpool in particular—place coils underneath behind a front access panel at floor level.
How to clean them safely:
- Unplug the refrigerator before you start.
- Use a coil brush (widely available at hardware stores) to loosen built-up dust.
- Follow up with a vacuum and brush attachment to remove debris thoroughly.
- Plug back in and monitor the cabinet temperature over the next two to three hours.
If the coils are visibly matted with years of buildup, professional cleaning is more thorough and avoids the risk of bending or damaging the coil fins.
4. Evaporator Fan Not Running
Inside the freezer compartment, a small fan draws air across the evaporator coils and circulates it into the refrigerator section. When this fan fails, the freezer may hold temperature while the fridge compartment gradually warms—because cold air simply isn’t being delivered.
How to check:
- Stand near the back wall of the freezer while the compressor is running. You should hear a faint but steady hum or whirring.
- Silence where there should be airflow suggests the fan motor has failed.
- A thick buildup of frost or ice on the back wall of the freezer can physically block the fan blade from spinning—look for this before assuming the motor is dead.
Either a failed fan motor or a frost-blocked evaporator requires professional attention. Both need proper diagnosis to confirm the root cause before parts are ordered.
Serious Issues: Defrost and Refrigerant Systems
5. Defrost System Failure
Modern refrigerators run automatic defrost cycles to prevent frost from accumulating on the evaporator coils. When the defrost system breaks down, ice builds up on the back wall of the freezer, restricts airflow, and progressively reduces cooling across both compartments.
Key symptom: A thick sheet of frost or ice visible on the back interior wall of the freezer.
Three components make the defrost cycle work:
- Defrost heater: Periodically warms the evaporator coil to melt accumulated frost.
- Defrost thermostat: Monitors temperature and signals the heater when a defrost cycle is needed.
- Defrost timer: Controls how frequently the cycle runs.
A failure in any one of these components causes frost to accumulate unchecked. Pinpointing which part has failed requires electrical testing—a job for a trained technician.
6. Refrigerant Leak
Refrigerant is the substance that absorbs heat from inside the cabinet and releases it outside. When a leak develops, the refrigerant level drops and cooling capacity weakens gradually rather than failing all at once. A refrigerator losing refrigerant often warms slowly over several days, which can be easy to mistake for a minor thermostat issue.
Signs that point to a leak:
- A steady temperature rise that worsens over days rather than hours.
- Faint hissing or bubbling near the back of the unit (though leaks are often silent).
- An oily residue visible near copper refrigerant tubing.
Refrigerant handling is regulated under Canadian law. Only certified technicians may legally recover, repair, and recharge refrigerant systems. Our appliance technicians are properly equipped to assess this work.
7. Compressor Failure
The compressor drives refrigerant through the entire cooling circuit. When it fails, cooling stops altogether—both compartments warm, and the unit may make distress sounds while trying to restart.
What to listen for:
- Repeated clicking or buzzing as the unit attempts to start.
- The clicking stops and gives way to silence—no compressor hum follows.
- This cycle may repeat every few minutes.
Compressor replacement is typically the costliest refrigerator repair. Before recommending it, our technicians verify the diagnosis carefully. In some cases, a relay or start capacitor is the actual culprit—a far less expensive fix that mimics compressor failure symptoms.
Quick Diagnosis Guide: What’s Not Working?
Freezer is cold, but fridge section is warm: The problem is almost always airflow-related. A failed evaporator fan or a defrost system blockage is preventing cold air from reaching the refrigerator compartment.
Both the freezer and fridge are warm: The entire cooling cycle has stopped. Suspect a compressor fault, a refrigerant leak, or a complete loss of power to the unit.
Food Safety: How Long Do You Have?
A cooling failure is also a food safety event. Keep these thresholds in mind:
- Safe refrigerator temperature is 4°C or colder. Above that threshold, bacterial growth accelerates rapidly.
- The 2-hour rule: Perishable food left above 4°C becomes unsafe after two hours. In summer heat or a warm kitchen, reduce that window to one hour.
- After the fridge restores temperature: If your refrigerator returns to 4°C or below and food remained refrigerated throughout, it’s generally safe to keep.
- When uncertain: Discard it. The risk of foodborne illness isn’t worth the savings.
When to Call a Professional
If you’ve confirmed the plug is secure, the door seal passes the dollar-bill test, and the condenser coils are clean—but the refrigerator still isn’t cooling—it’s time for professional diagnosis. We service all major brands including Samsung, LG, and Whirlpool, and our technicians bring decades of combined hands-on repair experience to every call.
Our diagnostic fee is $85 + HST per appliance—$14 less than the industry average. If you proceed with the repair, that fee is waived entirely. Same-day appointments may be available. SureFit confirms timing after reviewing your request.
Every repair we complete is backed by a 90-day warranty, giving you documented protection on both parts and labour.
Book Your Refrigerator Repair Today
A broken refrigerator puts food, money, and peace of mind at risk—the faster it’s diagnosed, the better. Book an appointment online or call us at (647) 977-2626 to schedule your service visit.
For a full overview of what to expect from the repair process, visit our refrigerator repair page.
SureFit Appliance Services
Keswick, Ontario
(647) 977-2626
Same-day service may be available; emergency requests are accepted
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If troubleshooting hasn't resolved the issue, same-day appointments may be available across Simcoe & York Region. TSSA-certified technicians handle gas and propane appliance work. Refrigerator Repair → | Book Online | (647) 977-2626
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A service-call fee of $85 + HST applies to each appliance diagnosed. If you approve a repair for an appliance, that appliance’s service-call fee is waived. 90-day parts & labour warranty on every job.