how can i fix the pressure gauge on baxi 105e boiler as low pressure?

Is the filling loop connected? If it is connected, is the fill valve open?

If there is a leak, and you have bled radiators, the pressure remains static, suspect system is topped up automaticaly, which (i am sure) water bylaws forbid.

If gauge is stuck and there is little or no water in the boiler, boiler can be damaged.

Dan
May 2005