Fix Fault Worcester Boiler

Worcester boiler dripping water, can I just tight the screw? The icon next to the valve looks like radiators? last months I didn't use it as I wasn't home. see the pic:: https://photos.app.goo.gl ... more

worcester bosch 532/i boiler. when the hot tap calls for water the boiler runs ok heating up the water to the correct temp then after a few mins something causes the boiler to stop heating the water ... more