If y ou recently moved in as part of an exchange, the visiting officer that dealt with your exchange will have advised you to ring C2C to arrange for a new electrical test to be carried out.
Os gwnaethoch symud i’r eiddo yn rhan o gyfnewidiad, bydd eich swyddog ymweld a ymdriniodd â’ch cyfnewidiad wedi’ch hysbysu i ffonio C2C i drefnu cynnal prawf trydanol newydd.