Replacing a failing defrost control board with this genuine Carrier HK32FA006 restores the proper 24V signal to the W terminal

this solid-core current transducer provides a linear 0-10VDC output proportional to the sensed current

Armor (WA 125-200)

Unlike standard direct-acting regulators

this unit ensures optimized flow rates and pressure stability

Watts 0156731 Valve 320788-703 Replacing a failing defrost controlThe Watts 0156731, specifically the 40XL 5 150, is a high capacity T&P relief valve engineered for heavy duty protection of water heaters and storage tanks. Featuring a 3 4 inch NPT inlet and outlet, this temperature and pressure relief valve is factory set at 150 PSI with a maximum temperature threshold of 210F. The 40XL series is built with a bronze body and features an extended thermostat probe to ensure accurate thermal sensing in the top 6 inches