Best Plumbing & Heating LLC

Emergency repair typically costs 1.5-2.5x normal rates. After-hours service calls usually run $150-$300 for the diagnostic fee, plus parts and labor. Weekend and holiday rates can be higher. However, the cost of downtime — lost revenue, food waste, and staff idle time — almost always exceeds the emergency service premium. Most providers charge $100-$200 diagnostic fees that apply to the total repair.

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.

Preventive maintenance frequency depends on the equipment and usage volume. As a general guideline: fryers and ovens should be inspected every 3-6 months; refrigeration equipment annually or semi-annually; ice machines every 6 months (including cleaning and sanitizing); exhaust hoods quarterly to semi-annually per NFPA 96; and dishwashers quarterly. High-volume operations benefit from more frequent service intervals.