Johnson & Starley 1000 0511760 Relay Module
City Plumbing
The printed circuit board or ( pcb ) is the control centre of the appliance. It monitors and controls every process that occurs via the switches, sensors and thermostats. It also enforces the safety procedures, making sure that the boiler ceases to func
Direct Heating SparesJOHNSON AND STARLEY 1000-0511760 RELAY PCB ASSEMBLY. Genuine brand new Johnson & Starley Boiler Spares product, covered by a Johnson & Starley Boiler Spares manufacturer's guarantee.