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First, immediately move all perishable food to a working refrigerator, a walk-in cooler, or use ice packs in coolers to maintain food safety temperatures below 40°F (4°C). This prevents spoilage and avoids health code violations. Next, unplug the unit and check for simple issues like a tripped circuit breaker, a loose power cord, or an accidentally adjusted thermostat. For a restaurant, do not attempt complex repairs yourself. Contact a licensed commercial refrigeration technician immediately, as they have the expertise and parts for urgent service. Document the incident and any food loss for insurance purposes. Regular preventative maintenance is key to avoiding such critical failures in a food service environment.
The most expensive repair for a refrigerator is typically a compressor failure. The compressor is the heart of the cooling system, and replacing it is a labor-intensive job that often costs as much as, or more than, a new mid-range refrigerator. The high expense comes from the part itself, which is a major component, and the specialized labor required for recovery of the old refrigerant, brazing in the new compressor, and recharging the system. Other costly repairs include issues with the sealed refrigeration system, like a refrigerant leak or a faulty evaporator coil. Given the expense, it's often recommended to get a professional diagnosis to weigh repair costs against the age and value of the appliance.
For optimal performance and food safety, a commercial refrigerator should undergo professional preventative maintenance at least twice a year. This biannual service typically includes cleaning condenser coils, checking door seals, verifying thermostat calibration, and ensuring refrigerant levels are correct. More frequent checks, such as monthly cleaning of interior and exterior surfaces, should be performed by staff. High-usage environments or units in harsh conditions may require quarterly professional servicing. Regular maintenance prevents costly breakdowns, ensures consistent safe temperatures, and maximizes energy efficiency, directly impacting your operating costs and compliance with health codes. Consistent care also extends the unit's lifespan and supports broader goals like those discussed in our internal article, Preventing Food Waste Through Proper Refrigeration.
The most common refrigerator repair is typically related to the defrost system. This includes issues like a failed defrost heater, thermostat, or timer/control board. When this system malfunctions, ice builds up on the evaporator coils, blocking airflow and causing the refrigerator to not cool properly. Symptoms include excessive frost in the freezer section and warm refrigerator temperatures. Other frequent repairs involve faulty door gaskets (seals) leading to energy loss, malfunctioning thermostats or temperature control boards, and problems with the condenser coils becoming clogged with dust and debris, which reduces cooling efficiency. Regular cleaning of coils and checking door seals can prevent many common issues.












