Carrier HH18HA435 Limit Switch 318973-401 Technicians should monitor for low-voltage

Technicians should monitor for low-voltage alarms on the transmitter display or inconsistencies in the wireless signal strength

Common Questions: Can this be used for dead-end lockup applications

Enhanced Durability: Constructed from heavy-duty materials designed to withstand the thermal cycling and pressure differentials found in industrial refrigeration

The high-impact ABS plastic enclosure ensures durability in rigorous duct environments

ensuring stable performance during peak summer loads

Carrier HH18HA435 Limit Switch 318973-401 Technicians should monitor for low-voltageReplace failing thermal components with the Carrier HH18HA435 Limit Switch, a critical safety device engineered for precise temperature monitoring in residential and commercial furnaces. As a veteran grade 100 135F auto limit switch, this component is designed to interrupt the electrical circuit if the plenum temperature exceeds 135F, preventing heat exchanger damage and ensuring system integrity. Once the temperature drops to the 100F reset point,