I have Siemens 5SM 1314-0 RCCB installed in my house. This was done by previous owner and we are using same. We have two ACs in house. In April-May, we used to run both of them but now only one was being operated. Recently (~in last 20 days), whenever I start one of AC, it would trip in some time. Time between starting of AC and tripping is highly variable. One day it would trip within 10-15 mins, some day in an hour or two and some other day it would go easily a night.
However due to this behavior, we have stopped using AC. Post this it have tripped only once. I have very noob question here as what exactly is issue ? I know that RCCB would trip when current mismatches; but not sure what thing needs to be checked ? Is it AC or is it input voltage or something else ?
Please note that I have all wiring done concealed and it is done by previous owner.
However due to this behavior, we have stopped using AC. Post this it have tripped only once. I have very noob question here as what exactly is issue ? I know that RCCB would trip when current mismatches; but not sure what thing needs to be checked ? Is it AC or is it input voltage or something else ?
Please note that I have all wiring done concealed and it is done by previous owner.