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Baxi Luna 380 pressure drop
Hi, We have Baxi Luna 380 combi boiler. The pressure in the boiler keeps dropping and I see the regular discharge from the pressure relief valve pipe which causes the boiler pressure to drop and display E119 fault code. I then have to increase the pressure manually through the knob underneath the boiler. Can someone please suggest why the boiler is loosing the pressure so often and can someone please suggest a qualified baxi plumbing contractor in greater boston area? I am finding very hard for any plumber to work with Baxi boiler.