ferroli... burner on start up..up and down flame picture ?

[archiedale]

i think its fan related, modena 80e. Would it be the venturi ?

 

[armourer]

Not much information their mate but check case seal and flue first off.

 

[Roger Welton]

Is it the b.p fluctuating (a control issue) or is the flame lift from the burner (a flue / vent issue)

 

[archiedale]

thanks for imfo, its what the customer was telling me over phone. will take a look in morning.

 

[archiedale]

went to have a look, both dhw and heating very stop start, checked flue, aps, venturi and tubes etc all ok. gas pressures fine. burner ignites then goes out after couple of seconds but sometimes starts fine and runs.... hate to say it... PCB ?

 

[southcoastboile]

could be fs probe, was it a modena? had a few of these were the fsp tends to bend upwards from the heat after time, normally you can bend them back down and it will work.