Some tanks have twin elements, a small short one that only heats the
water at the top and a main element that heats the whole tank.
The main element could have failed..
Or it simply could be that the controller has failed or has been mis-set..
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.