Worcester SI II Printed Circuit Board (PCB) 87483004170 is the control centre of this appliance. It controls and monitors every process that occurs via the sensors, switches and thermostats. It also enforces the safety parameters, making sure that the boiler ceases to function if any of the internal readings point to any kind of error or fault. Worcester SI II Printed Circuit Board (PCB) 87483004170is effectively the brain of your boiler; It is programmed to ensure everything is running as it should.
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