The 3 timer clock tabs, that its currently sitting at look like they are set to off. Click the 3 tabs out and see if the output cable goes live.
Has this resolved your problem ?
You need to set the clock to turn the element on for at least a few hours and then see if you have hot water.
You have the pins set in a bizarre pattern.
I don't follow the 60 seconds bit....
It's a 3kW element...not much more than a kettle so it takes a long time to get hot water.
What are you using to determine the immersion heater is " switching on and off after 60 seconds" ?
Oh man, you are looking to blow yourself up aren't you?I wired it directly, bypassing the timer and it switched on then off after 60 secs. Must be emersion?View attachment 211647
Before even contemplating draining the cylinder and replacing the immersion ,you should test with a multimeter ,the immersion element and its thermostat . Just swapping parts without knowing what exactly the fault is ,would be a waste of time and money.
It appears that you are relying on some sound or other to determine if the element is working ,not the way to establish whats wrong !!
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local