i found water dripping today, so got my spare heater ,so icould swop it ,once i had taken the old one off. i inspected it to see where the water was coming from and noticed it wasnt down to corrosion :? the pipe had been sliding against the metal cover causing what looks like a hacksaw mark .. quick trip up the road for some solder and it was right as rain
i checked the spare heater i have and that was the same as well :roll:
so i would advise a little check around your pipes