What is wrong with my hot water cylinder water cylinder is cold to touch and only feeling warm near the top Discussion Thread

What is wrong with my hot water cylinder water cylinder is cold to touch and only feeling warm near the top Discussion Thread

I am new to any forum on the internet. I live in NZ
I am seeking advice on what is wrong with my hot water cylinder

My hot water tap downstairs immediately runs hot when turned on.
The water cylinder is cold to touch and only feeling warm near the top.

Any answers gratefully appreciated

What is wrong with my hot water cylinder water cylinder is cold to touch and only feeling warm near the top for the original thread on Plumbers Forums