c6 error code on 35cdi

[manx12]

Have to go look at a boiler tomorrow with this error message; it is abit of a journey to get to the location... in the manuals it points to slow fan speed (possibly change fan).. is there anything else I can check or is it best to pick up a new fan? as a backup..
has anyone come across this error message? All helpful hints welcomed..

 

[tipintim]

I would have a look first. Take cover off and run boiler, providing your gsr

 

[GrahamM]

Check wiring etc first. It may also be a board fault so will need to carry out all the relevant checks for power, resistance etc. Before settling on fan.

 

[manx12]

checked voltage by disconnected harness at fan and testing for 240v on the bottom 2 connectors . Got a reading of 240v spoke with Worcester and they told me it was a common fault on the 35cdi greenstar and if I am getting 240v at the connectors at the fan then it is the fan.
replaced fan (a bit envolved; disconnect gas pipework to bottom of fan unit remove clips; reassemble check for leaks and use your FGA to check the co ratio's are within MI limits.
All good and working fine.