Sing Heating and Air

Commercial refrigerators must maintain 40°F (4°C) or below for food safety compliance. Walk-in freezers should be at 0°F (-18°C) or below. Many food safety programs require refrigerators to run at 35-38°F for proper margin. If your unit struggles to maintain proper temperature, especially during busy service periods or in hot kitchen environments, call a technician — compressor capacity or refrigerant levels may be the issue.

The hi-limit switch is a safety device that cuts power when fryer temperature exceeds safe limits. Common causes: faulty thermostat allowing oil to overheat, failing hi-limit switch itself, improper temperature settings, low oil level exposing heating elements, or carbon buildup insulating heating elements. Never bypass the hi-limit switch — it prevents fires. Call a technician to diagnose the root cause.

Installation time varies significantly: single appliance with existing connections 2-4 hours; single appliance requiring new utility connections 4-8 hours; full kitchen buildout 1-3 weeks depending on scope, permit timelines, and contractor scheduling. Work with your installer to create a realistic timeline that accounts for utility work, inspections, and health department walkthroughs before opening.