A number of Keston boilers require two incoming supplies due to the load generated by the combustion fan.
The manufacturer's instructions state that "there must be only one common method of isolation for the boiler and its control system".
However, some installers have provided two separate live supplies with no common means of isolation.
Prior to working on any Keston boiler visually check that the supply wiring arrangement is correct and confirm safe isolation.
The manufacturer's instructions state that "there must be only one common method of isolation for the boiler and its control system".
Prior to working on any Keston boiler visually check that the supply wiring arrangement is correct and confirm safe isolation.
