On 28/05/2019 17:16, Andy Burns wrote:
Chris Hogg wrote:

How many elements in the heater tank does it have? Having three
settings suggests three.

some use 1=low, 2=med, 1+2=high

Found the booklet/installation manual (sad, I know).

Is this diagram of any help in working out what may need replacing?


http://tinypic.com/r/291lv6u/9