Today I partially emptied the central heating system (1st floor and loft) so that I could disconnect an old towel rail and install the pipe work ready for the new towel rail. All went well and I have two capped pipes sticking out of the wall where the new towel rail will be fitted.
Having re-filled the central heating system, the boiler is playing up and refuses to heat the water or the radiators. I noticed it was giving an S.54 message, but after turning off and back on it is now displaying F.20.
There's a lot of splushing sounds going on in the boiler, so I guess there's some air in the system, but the pressure is at 1.4 bar.
The boiler is a Vaillant ecoTEC plus 637.
Any thoughts on what the issue might be and how I can get it back up and running?
Having re-filled the central heating system, the boiler is playing up and refuses to heat the water or the radiators. I noticed it was giving an S.54 message, but after turning off and back on it is now displaying F.20.
There's a lot of splushing sounds going on in the boiler, so I guess there's some air in the system, but the pressure is at 1.4 bar.
The boiler is a Vaillant ecoTEC plus 637.
Any thoughts on what the issue might be and how I can get it back up and running?