My Synsynk AC system has been tripping its RCBO a few times of late and cutting the AC to the invertor, three times this morning after rain showers, happens generally on wet days.
I've been doing a bit of research/Watching excitable Keith @ Synsynk training videos etc and appreciate that the likely issue is culmulative earth leakage of the house in total being picked up by the RCBO due (according to Keith my Synsynk invertor adds a little of this itself). So im working on the premise that some of my weather affectable external wiring, to my external sockets/shed/tortoise/pond etc is a tad iffy, and to be honest although it has worked fine for years some of it is not my finest of work. I will replace it all shortly once weather improves.
In the meantime i am wondering whether removing the 20a 30mA RCBO and replacing with it with an 16/20a MCB is an alternative for the time being? I would also like to remove the currently fitted Surge Protection Device (none of my other CU's have these) and replace that with a 63a 30mA RCD at the same time as the new MCB.
From what i understand (my invertors AC wiring is surface mounted and approx 6m long) all that is required is an MCB under the regulations, although i would want the protection an RCD offers even if not strictly required (if im correct?), seems silly not to.
Would appreciate your critique as to my thoughts on the CU alterations.
Fully Appreciate i could get a sparks to carry out housewide Earth leakage tests to try and ID any source before doing anything but i am currently mired in so much that it will be tricky to organise quickly, so would be far quicker for me to change the CU arrangement, after isolating the external 'iffy' circuits one by one.
