My caravans boiler is now displaying f5. I just filled the hot water circuit after draining down for the winter period. The boiler started but then displayed F5. I have tried several resets using the left hand control knob but returns to F5. Looking on the Morco website this indicates a new PCB but just wondered if anyone had managed to fix this type of fault without changing the PCB.

Bob, March 2014

F5 is showing how do I fix it thankyou

Gordon, March 2020

Did you manage to sort this without changing PCB?

Linda, June 2017