Boiler Pressure Too Low: Quick Troubleshooting
3 August 2026 | Leyton Boilers
Check the pressure gauge — most systems operate around 1–1.5 bar when cold. Repressurise using the filling loop if values are below the manufacturer's minimum.
If pressure drops again quickly, there may be a leak on radiators, pipework, or the pressure relief valve. Persistent drops need professional investigation.
Call Leyton Boilers if you are unsure how to repressurise safely or if the fault returns within days.
Need professional help?
Leyton Boilers provides Gas Safe registered boiler servicing, repairs, and installations across London.
07429 031 444 Contact us