I have a 5 year old Potterton Powermax 155x.
For the last 6 months I have been having problems and they seem to be getting worse.
Basically when the bolier fires up it 'bangs'. Occasionally (normally in the middle of the night) after a few failed attempts it fails to ignite and locks out. The pressure then slowly drops.
I am guessing the bolier is either scaled up or the gas/air mixture is wrong.
Any help would be appreciated.
For the last 6 months I have been having problems and they seem to be getting worse.
Basically when the bolier fires up it 'bangs'. Occasionally (normally in the middle of the night) after a few failed attempts it fails to ignite and locks out. The pressure then slowly drops.
I am guessing the bolier is either scaled up or the gas/air mixture is wrong.
Any help would be appreciated.