Am I doing something wrong?

[scotty1286]

If the ELCB is tripping it is possible you have a partial short to earth somewhere in your wiring that the unit is detecting and tripping, this is even more likely as you have had 2 units doing the same thing.

[bearded_bluto]

Maybe your water pressure is to low or the valve after the hot water heater is restricted, leaking or opened to little.

 

The water needs to be moving though these things, these on demand heaters like your picture have a sensor that detects flowing water, when water is flowing it allows the heating element to kick on. However if its a trickle the flow detector may allow the heating element to turn on, but it over heats and destroys itself. Just my thought. Maybe someone else has turned water on in the yard while your showing or something like that?

 

On your diagram the flow detection is third one up from right bottom. Heating element is first on the top left. I re-read your post, maybe when washing plates turn water on fully and make sure the faucet end is not clogged? They sell new heating elements on. lazada and shopee

[Fruit Trader]

[Sophon]

18 hours ago, Crossy said:

 

Do you have a link for that heater?

 

It looks like it might be suitable for a kitchen sink installation for which I need one.

 

I think this is the one:

https://www.lazada.co.th//products/i5205794979-s22120856344.html?urlFlag=true
 

[Peterphuket]

18 hours ago, Crossy said:

 

Do you have a link for that heater?

 

It looks like it might be suitable for a kitchen sink installation for which I need one.

Of course Crossy, here it is: https://www.lazada.co.th/products/i5205794979-s22120856345.html?urlFlag=true&mp=1&tradePath=omItm&tradeOrderId=963852719114586&tradeOrderLineId=963852719214586&spm=spm%3Da2o42.order_details.item_title.1