Carrier HH19ZA940 Limit Switch 319847-401 the S1-FHM3588 is the direct

the S1-FHM3588 is the direct OEM superseding part for the 024-25813-700 and 024-19152-700 blower motors

installing this factory-spec component ensures the unit remains within its original safety parameters

secure installation on the armature tube

compression elbow fittings on both the high and low-pressure sides to ensure a leak-free seal in HVAC pneumatic systems

Its nickel-plated forged brass body and stainless steel ball and stem construction provide robust durability and a 600 psi body pressure rating

Carrier HH19ZA940 Limit Switch 319847-401 the S1-FHM3588 is the directThe Carrier HH19ZA940 Limit Switch is a critical OEM safety component engineered for precise thermal regulation within Carrier fan coil units, packaged systems, and secondary heating assemblies. This 85 140 degree limit switch operates as a normally closed (NC) safety, opening the circuit when the sensed temperature exceeds 140F to prevent heat exchanger or coil damage. Once the system cools back to 85F, the automatic reset limit switch closes the