Description
failure to hold pressure during testing often indicates a compromised diaphragm
It is standard trade practice to replace the HVAC capacitor whenever installing a new motor to ensure the start windings receive the correct phase shift and current
Designed specifically for HVAC professionals
What are the temperature and pressure limits for this
Carrier HH18HA130 Limit Switch 30067439-890 failure to hold pressure duringThe Carrier HH18HA130 is a high precision, OEM auto limit switch designed for critical thermal regulation within residential and light commercial HVAC systems. This disc type temperature actuated switch features a specific operating range of 100 130F, functioning as a primary safety mechanism to prevent heat exchanger damage and ensure efficient blower motor cycling. As a direct replacement for the HH18HA130B, this component maintains strict 1 2" NPT