Keston C130 fail to start

Hi All

I have Keston boiler model C130, and recently it is not starting properly. The whole starting process takes about 20 min. During this time the red lamp illuminates changing to green whenever boiler starts to light. The end result- well sometimes it starts and sometimes not. When not I restart the boiler and start the process again. Can someone advice any permanent solution?


Hi Jake

Sometimes old condensing boilers fail to fire because pressure switch breaks,  but in those cases you would hear a characteristic ‘buzzing’ noise. This noise never occurs when the boiler fires correctly and in normal operation (boiler fires, ignites, heats water and then stops).  If that is the case with your boiler, replacing the pressure switch will solves  the issue for next couple of years.