Hi .
Now i know a lot of you on here slag Feroli Sigma boilers off but i have to admit this one has been rock solid for 9 years or so , Now all of a sudden it will not start at all .
What i have noticed is that the Exhaust fan does not try to run at all and from what i remember no fan no...
The Ketteling is the easy one to solve just use the timer from a timed bathroom fan to run the pump on for a few seconds after the boiler cuts out
the wiring is self explanitory same as for the fan