Hi - have had a Mira shower running back to an MCB for 2 yrs and working fine. Recently replaced the MCB with RCBO (30mA) for extra safety/security. Runs shower fine for ages; no faults/stipping. However, at other times during day/night when shower has not been in use, the RCBO trips (for no aparent reason). Any thoughts?
Also, I understand an RCD is not requied legally, tho obviously desirable for safety. Is this still true? Many thanks.
Also, I understand an RCD is not requied legally, tho obviously desirable for safety. Is this still true? Many thanks.