You should replace the sensing probe if the ceramic insulator is cracked

use with other refrigerants may lead to improper metering and system failure

and AC15 (4A) at 440V

check for proper grounding and a clean signal back to the control board

Enhanced Controls Logic: Critical for air cleaners and ducted heating applications requiring supply air monitoring to prevent limit trips

ASCO 822299 Solenoid Valve 319848-301 You should replace the sensingThe ASCO 822299 Solenoid Valve is a high performance, 2 way normally closed valve engineered specifically for demanding steam flow control and high temperature applications. Featuring a robust brass body and a 1 inch NPT connection, this pilot operated valve is designed to handle pressures from 0 to 200 PSI steam. It serves as a direct, reliable 131S44 replacement valve, ensuring seamless integration into existing HVACR and boiler systems. Powered by