"clicking" sounds from the control box

It delivers a nominal 10-second full stroke time on and a 5-second full stroke time off

pin-selectable defrost intervals of 30

Enhanced System Longevity: Protects the blower assembly and heat exchanger by preventing over-temperature conditions

Copeland Comfort Control (White Rodgers) 36H32-423 Gas Valve Els PW 17895 "clicking" sounds from the controlThe Copeland Comfort Control (White Rodgers) 36H32 423 Gas Valve is a universal single stage gas valve engineered for versatile field replacement across a wide range of residential and light commercial heating systems. This 3 4" x 3 4" NPT valve is a direct solution for Direct Spark Ignition (DSI), Hot Surface Ignition (HSI), and Intermittent Proven Pilot systems. Designed for high capacity performance, it handles up to 300,000 BTU hr on Natural Gas