Worcester Bosch Mains Cable Harness 8716117073

The Worcester Bosch mains cable harness, part number 8716117073, is the wiring assembly that brings mains supply into the appliance and distributes it to the boiler's control components. It is a Worcester Bosch spare built for the Greenstar i ErP System range of gas boilers. Its role is to carry live, neutral and earth connections securely between the appliance terminal block and the internal electronics, so the boiler can power up, run its pump and fan, and respond to demand.

• The boiler does not power up at all, with no display or indicator lights when the supply is switched on.
• Intermittent shutdowns or random resets that trace back to a loose or broken conductor in the harness.
• Visible damage to the cable: scorched, brittle or cracked insulation, or exposed copper at the plug or terminal ends.
• A harness plug that no longer clips positively into its socket, or shows heat discolouration around the pins.
• Continuity faults found during electrical testing between the mains inlet and the control board.

• Check the appliance GC number and serial plate against the compatibility list to confirm the harness matches your model.
• The alternative number 1031087 may be marked on older stock or documentation for the same item.
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.