Heatslave 12/18 (2018)

[Claire Pearce]

My oil combi Heatslave keeps locking out. Code 9f
I have oil and filters are new.
Any ideas anyone ?
It’s firing but won’t stay on for more than 10 mins a time.

 

[oilhead]

This code is fuel starvation. Check your fuel and filters again and if you are getting fuel to the burner, check pump pressure, but if it runs for 10 mins, then it sounds like a blockage

 

[Claire Pearce]

How would I clear a blockage ?

 

[oilhead]

You say you have new filters; depending on the type they may need to be bled. Do you have pictures of your installation?

 

[Claire Pearce]

It’s giving me and 856 code now. how do I bleed the pipes through please