an open circuit on a switch that hasn't exceeded its 340F rating indicates a faulty component that requires replacement

What does a low pressure switch do in a heat pump

it achieves ANSI/FCI 70-2 Class IV shutoff

these codes often indicate a failure in the outdoor or indoor coil sensors

Corrosion Resistance: Durable bronze body construction and stainless steel internal components resist corrosive water conditions

Danfoss 034G2851 Valve 340793-762 an open circuit on aThe Danfoss 034G2851 Valve is a high precision KVS 42 electrically operated suction modulating valve designed for accurate temperature control in air conditioning and refrigeration systems. Engineered specifically for R410A, R404A, and R134a systems, this 1 3 8 inch ODF solder valve ensures optimal evaporator pressure regulation and precise liquid injection control. The stepper motor drive provides high resolution flow management, which is critical