Low pressure on your Baxi boiler? If your heating stops or you see an “E119” fault code, your boiler pressure has dropped below 1 bar. That’s a common reason why many Baxi boilers stop working or fail to heat water. Repressurising the system is a simple fix when done correctly, it restores the balance in your central heating system so the boiler can fire up safely again. You’ll normally need to open the filling loop valves until the pressure gauge rises between 1 and 1.5 bar, then close them aga