Grant Vortex 26 Combi doesn’t hold the pressure?

Hi

I have a Grant Vortex Combi oil boiler model 26. I am a bit worried because I need to  re-pressurize the system every 2 weeks to 1 bar. The strange thing is that after approximately 10 days system pressure drops down again. It become a habit in last 3 months. I will have a long weekend now and I was thinking it is high time to do sth about it. Anyone an idea what needs to fixed/replaced?

Jack

Hi Jack,

You can start with bleeding the system at the boiler and bleeding the radiators. If it doesn’t help you can do further and check for leaks. If nothing helps then you will need to replace a relief valve to fix the issue.