Viessmann 7134328 Circuit Board 319852-301 Failing switches often cause the

Failing switches often cause the furnace blower fan to run continuously or lead to furnace short cycling

Operating within a

ensuring consistent refrigerant metering and long-term system stability under high-ambient conditions

preventing the common issues of overheating or inefficient heat exchange

Corrosion Resistance: Features a lead-free copper alloy body and a stainless steel spring to withstand aggressive water conditions

Viessmann 7134328 Circuit Board 319852-301 Failing switches often cause theThe Viessmann 7134328 is a critical VR20 control board specifically engineered for Vitodens 200 WB2 and WB2A series gas condensing boilers. Functioning as a high precision communication interface, this replacement circuit board facilitates data transfer between the LGM 29 burner control unit and the main system sensors. It is essential for managing boiler fault codes such as A1, A4, and outdoor temperature sensor malfunctions. Field replacement