Carrier HH19ZA156 Limit Switch Freon making it ideal for standard

making it ideal for standard low to medium pressure steam applications

High amp draw or overheating often indicates internal friction or failing insulation

With support for up to three auxiliary fan circuits

How do I confirm if my existing board is faulty

By utilizing factory-authorized components

Carrier HH19ZA156 Limit Switch Freon making it ideal for standardThe Carrier HH19ZA156 Limit Switch is a critical OEM safety component designed for precise thermal regulation within Carrier, Bryant, and Payne furnace assemblies. This normally closed disc style switch acts as a primary high limit safeguard, engineered to interrupt the electrical circuit and terminate the heating cycle when internal plenum temperatures reach the 155F open setpoint. Once the heat exchanger cools to the 105F close setpoint, the