Boiler is 13 years old. All works fine, serviced by BG every year.
Turned power off at switch for 2 week holiday. Turned back on and buzzing noise comes from base of boiler lasted about 2 mins and then all fine and no noise since (this was about 3 months ago).
Powercut other day off for 5 mins, power back on buzzing noise for 20 seconds then all fine.
So turned off for couple of hours and back on buzzing noise for about 40 seconds.
The buzz seems to relate to the time off! Any ideas what it could be, its as if a clock is spinning, creating loud buzz, to fire it up, sound like from the control unit area where the power dial is set to medium,high. off,etc.
At all times boiler is off for heat and water when this power is turned off and on.
Whilst here are BG correct that parts cannot be obtained for the 40FF anymore as online they seem to be available.
Thanks for any advice.
Turned power off at switch for 2 week holiday. Turned back on and buzzing noise comes from base of boiler lasted about 2 mins and then all fine and no noise since (this was about 3 months ago).
Powercut other day off for 5 mins, power back on buzzing noise for 20 seconds then all fine.
So turned off for couple of hours and back on buzzing noise for about 40 seconds.
The buzz seems to relate to the time off! Any ideas what it could be, its as if a clock is spinning, creating loud buzz, to fire it up, sound like from the control unit area where the power dial is set to medium,high. off,etc.
At all times boiler is off for heat and water when this power is turned off and on.
Whilst here are BG correct that parts cannot be obtained for the 40FF anymore as online they seem to be available.
Thanks for any advice.