Aaon Limit Switch

AAON limit switches are genuine OEM replacement safety controls for AAON commercial HVAC equipment, including rooftop units and air handlers. A limit switch, also called a high-limit switch or limit switch/thermostat, monitors temperature inside the unit. If conditions become unsafe, it opens the control circuit and shuts down the equipment. This helps prevent overheating, component damage and fire hazards.

Key Features:

• Genuine AAON OEM replacement part, built to the manufacturer's specifications for the intended AAON equipment
• Overheat protection that interrupts the control circuit when temperatures exceed the set limit
• Auto-reset styles that return the unit to normal operation once temperatures drop back into the safe range
• Offered in a range of trip temperatures and insert configurations to match different AAON units
• Helps protect heating elements, heat exchangers and other components from thermal damage

Replacing a worn or failed limit switch with an OEM AAON part helps keep your system operating safely and reliably. Choose the variant that matches your unit's original part.