frenchsparky said:sure you can remove the rcd device but one quick question where you from ??? if from U.K. it might be diffrent codes .
the rcd should trip only if there is a fault between phase to earth or neutral to earth maybe u have one of them and under normal operateing conditions the resistance is high enough to stop an arc from one of the above to earth faults but when u trun it off the high inductive reactance is high enough to arc u could be using normal domestic unit try getting one with moter delayUnregistered said:I have to agree with Bob F.
The inductive reactance or in rush of current (as small as it is) with a paddle fan is causing the rcd/mcb to electronically sense a current mismatch and causing the tripping fault. It is just doing it's job...
The in rush I is probably just over the threshold of your combo device causing your paddle fan whoos....
Disconnect fan from circuit and your troubles should vanish.