leading to frozen lines

and Coleman air handlers or furnace units

Simplified Diagnostics: Standard SPST configuration allows for straightforward continuity testing during routine service calls

Key Benefits for Technicians: Verified Compatibility: Direct OEM replacement for Lennox

providing a secure access point for HVAC troubleshooting and pressure testing

ClimateMaster 39B0017N01 Water Switch R-410A leading to frozen linesThe ClimateMaster 39B0017N01 High Pressure Water Switch is a critical safety component engineered for water source heat pumps and HVAC pressure monitoring. This OEM water switch is designed to protect the refrigeration circuit by interrupting operation when water side pressure exceeds the 145 PSI maximum threshold. As a veteran grade replacement part, it ensures the integrity of the coaxial heat exchanger and prevents equipment damage due to excessive