Hi . what is the boiler make and model?
Ideal - Reponse 120
There is no cover or dials, just the wall thermostat
There is a water pipe to fill the boiler which is closed
Have opened several times to build up the pressure.
1st time there was a leak, which has since stopped
Hi what is the pressure gauge reading?
If your hot water is working it will be your heating flow switch hasn't operated. This could be because the pump has failed and is not working . if the pump is working , change the flow switch
the switch was not on.
for the central heating.