Beaverton Supreme Appliance 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.

A compliant hood cleaning includes: complete degreasing of the hood canopy, all grease filters, the entire ductwork system from hood to exhaust fan discharge, and the exhaust fan and housing. Areas that cannot be thoroughly cleaned must be documented. Cleaning must be performed by a qualified company and documented with service report and before/after photos. The technician should leave a dated sticker on the equipment and provide a compliance certificate.