The Ariston 65109138-03 printed circuit board (PCB) is a genuine replacement boiler control component designed for reliable system operation. Ideal for restoring performance in compatible Ariston boilers, this OEM PCB ensures efficient heating control and dependable long-term use.
The Vaillant 0020036861 printed circuit board is a genuine replacement PCB for ecoTEC VU condensing boilers. It acts as the control centre, managing all boiler functions for safe and efficient operation.
The Worcester Bosch 8748300922 printed circuit board is a genuine replacement PCB for Greenstar boilers. Acting as the central control unit, it manages and monitors all boiler functions through integrated sensors, thermostats and switches. Designed to ensure safe and efficient operation, it can shut down the system in the event of faults such as low water pressure or overheating, making it essential for reliable boiler performance and repairs.