The Kitchenworks

Oil quality directly affects fryer performance and longevity. Degraded oil causes: higher operating temperatures needed, longer cook times, off-flavors, and increased carbon buildup on heating elements and thermostat probes. Proper oil management includes: filtering daily, testing oil quality with strips or meters, full oil changes based on usage (typically every 1-3 weeks), and cleaning the fryer tank when changing oil. Poor oil management is a leading cause of premature fryer failure.

Commercial kitchen equipment lifespans vary: commercial ovens 15-20 years, fryers 10-15 years, refrigeration equipment 10-15 years, ice machines 7-10 years, dishwashers 10-15 years, steam tables 10-15 years. Regular preventive maintenance significantly extends equipment life. Equipment that is properly maintained often outlasts these averages by 5+ years.

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.