Hi all, thanks in advance if there are any ideas.
I've got a Worcester Bosch Greenstar combi with Hive thermostat.
When the boiler turns on for central heating it makes a weird beep like a gameshow buzzer, a short rumble, then operates normally. Same thing happens when it turns off.
But it doesn't make this noise when just giving hot water.
British Gas came out a few times this Autumn and replaced a valve but didn't make a difference.
Does anyone have any idea what the issue might be?
I've got a Worcester Bosch Greenstar combi with Hive thermostat.
When the boiler turns on for central heating it makes a weird beep like a gameshow buzzer, a short rumble, then operates normally. Same thing happens when it turns off.
But it doesn't make this noise when just giving hot water.
British Gas came out a few times this Autumn and replaced a valve but didn't make a difference.
Does anyone have any idea what the issue might be?
