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
Bob the Gasman
December 2014
Automatic Answer
We may have found other answers which could help you.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix home heating systems.