my micron 50 ff boiler will not fire up?
When turning to on from '0' at control knob there is a humming noise at the fan but does not run.
The LED 1 (reset) flashes fast
The LED 2 (burner lit) flashes slow
just humming even if turn control knob back to '0'
tried turn off at mains but no different.
sounds like the fan has seized. a couple of drops of fan lubricant on each bearing and a few spins of the fan with the power off should see it working again
