Blairs Plumbing & Heating

Hood cleaning costs range from $300 to $1,500+ depending on system size, grease accumulation, and accessibility. Small single-hood systems run $300-$500; larger multi-hood systems or restaurants with heavy cooking can run $700-$1,500. Access issues (long duct runs, high roofs) add cost. Budget for cleaning as a fixed operating expense — it's far less expensive than a grease fire, insurance claims, or health violations.

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.

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.