I have a Chaffoteaux Minima MX2 24 FF boiler.
It is flashing '40 60 80' and the boiler doesn't ignite. No heating or hot water.

According to the manual this code means:
'Fan on but does not activate air pressure switch'

The fan comes on but the pilot light doesn't light.

Checked the Air Pressure Switch by gently blowing in the tubes. Could hear the little clicks.

Also brought a new switch just in case but still getting the same code.

Checked the two glass fuses in the pcb and they seem fine.

Any ideas what else it could be?

1234hyp, January 2011

Could be the fan venturi dirty, just needs taking out and cleaning.
Also this boiler has a fault with bad connection on the earth system of the ignition, usually the one black wire that goes to the earth connector needs re-fixing.

steve woods, January 2011

It was the PCB board. Put in a new one and everything is working fine.

1234hyp, January 2011