Noticed that my pressure gauge is showing red.
The boiler seems to be ok and hot water and heating ok.
How do i increase the pressure - will I benefit from this ?
Noticed that bolier has always had the plastic key inserted
and in the lock postion.
Many thanks for any advise.
The boiler seems to be ok and hot water and heating ok.
How do i increase the pressure - will I benefit from this ?
Noticed that bolier has always had the plastic key inserted
and in the lock postion.
Many thanks for any advise.