It's a flat with a combi boiler. All taps are mixer style. The boiler is still heating the radiators. No water comes out of any hot taps. I tried connecting the cold supply to the hot supply (via the washing machine inlets, as found on the internet as a tip to get rid of an air lock. ) This resulted in cold water flowing through the hot taps but even when left on for a few minutes it didn't seem to fix it. The inlets are connected back properly now and still no water comes through any hot taps. I'm wondering if there could be an air lock near the boiler, it was switched off overnight (still connected to power and gas, just off at the mode selector switch.) I can't think of any other change.
Please help- can I try anything myself? Should I try to find a plumber or boiler engineer?
thanks