how can i fix this problem? ferroli Optimax 25c boiler?
My heating and hot water do not come on. i have a ferroli optimax 25 c boiler. the display fault is as f 01. What could the fault be? The boiler fires up 3 times then goes back to f 01.
Ignition unit on gas valve prone to cause this fault. Check electrodes & gas valve/solenoid first. Ignition unit needs to be set for combi boilers via main pcb.
Gazza, September 2010
this is a burner ignition fault alarm, would guess from what you have described it is a flame rectification probe/lead problem and they will either need cleaning/repositioning or replacing
