I need help guys i cant seem to find the valve to refill the water on the boiler it keeps telling me to call a maintanance company. the bar pressure is 0, someone help me
look for a flexible hose between 2 of the pipes below the boiler and open the valves at either end. this hose could be almost anywhere but usually below the boiler, also depending on make / model of boiler it may have a filling loop built in.
