William Parrish Plumbing

High-temperature commercial dishwashers must reach 180°F (82°C) at the final rinse to achieve proper sanitization per NSF and health department standards. Low-temperature chemical sanitizing machines must maintain proper chemical concentrations (chlorine, iodine, or quaternary). If your high-temp machine isn't reaching 180°F, it's not properly sanitizing and may fail health inspection. Call a technician immediately.

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.

Signs your oven needs calibration: food is consistently undercooked or overcooked at standard settings, cooking times are significantly longer or shorter than expected, the displayed temperature doesn't match an independent thermometer reading. Oven calibration should be part of every service visit and can drift over time from component wear. A variance of more than 25°F warrants professional calibration.