E.42 Fault Powermax He 115i

[abc_plumb]

Hi Guys

Went out to this boiler today, and don't repair many powermax boiler so was a little stamped.
The boiler tries to go through its sequence but the flame lockout led comes on with E.42 Fault displayed.
Even with the the lockout led on the 3port valve lever keeps moving back and forth.

E.42 says it's and internal control error

Would the expects say it's a pcb fault?

 

[ShaunCorbs]

Does it light / fire ?

 

[abc_plumb]

Nope

 

[ShaunCorbs]

Fan come on ?

 

[abc_plumb]

No fan no ignition , just the 3 port valve lever moving back and forth.

 

[ShaunCorbs]

I would say board fault then