check your specific model prefix for compatibility

This specific orifice size is typically indexed for Natural Gas applications

Electrical Integrity: Rated for standard 15 Amp loads

or if a significant pressure drop is detected across the unit

Precision Fit: Ensures a 100% airtight seal to prevent safety pressure switch trips and combustion air leakage

Carrier HH18HA416 Limit Switch check your specific model prefixThe Carrier HH18HA416 Limit Switch is a critical safety component designed for precise thermal monitoring in HVAC furnace applications. This genuine OEM replacement part features a fixed 215F temperature setpoint and a manual reset (M R) mechanism, ensuring the system remains offline if an over temperature condition occurs until a technician can diagnose the root cause, such as a restricted heat exchanger or failed blower motor. Engineered to handle