Not sure, People say Joven brand sucks…

Leaking is because

1. Ur water is too dirty and muddy
2. The small filter near outlet already all jammed with mud and dirt
3. Water pressure high and jam due to mud clogging
4. Leaking start at inlet area due to bottleneck pressure

This post has been edited by Boomwick: May 29 2024, 07:41 AM

The leaking is probably the heater is constantly under pressure all the time.

From the installation of the heater, the bathroom is on another side. That means you only off the valve at the shower head after a bath at another side.

That leads to the heater underpressure all the time. The way of usage is wrong for such heater.

Such heater after bath require to OFF the valve at the water inlet side. The heater always come with the shut OFF/ON valve at the inlet side. So the water pressure is stop at before the shut OFF/ON valve.

No matter what brand or model, it will leak after sometime.

If you want to use as your way, get the storage water heater. Storage water heater tank can be under pressure and have a safety valve for over pressure. It can install in any place.

Adui, I have stated so many times instant water heaters aren't supposed to have a water stop valve at the outlet.

Your configuration comes with a valve at the outlet line (hot water) to stop water flow, correct?

If so,
1) get it removed and reroute the piping to add stop valve at the inlet, or

2) change to a storage heater

And

3) don't use steel piping or steel hose to connect to instant heater heater.

You are lucky your heater circuit presumably has a 10mA RCCB since it's Singapore, else you upcar liao.

The filter is located at the inlet. If that filter is clogged, leakage would be at upstream of the filter which is outside of the heater housing.

Yea.. isnt that pic showing those dirt rust water leaking out from inlet pipe? Or ts got other leaking?

the plumbing is for heater tank, not instant heater - note the metal/chrome piping
you need to know the max pressure at the place, these instant heaters can hold up to certain pressure only

the control valve should be at inlet, not outlet
you just need 1 valve to control the water flow

for those instant heater with built-in pump, stop the heater before closing the valve

the square shaped thing is for water flow sensor, to activate the heater only when water flows... this thing also can fail, and cause heater to either not function, or continuously boil the water



I suggest you find a different plumber technician

This post has been edited by alexei: May 29 2024, 10:19 AM

you need a proper multipoint water heater
either storage / instant kind

just install instant multipoint water heater
joven also got

if not Stiebel Eltron / rheem

hold on why guna steel pipe

For every complaint about this brand, ayam sure there are 10 praises for this.
How long a heater lasts depends on installation, usage and water quality.
Users who full blast water flow will naturally need to increase heating rate, shortening its lifespan.

A bathroom with more users will naturally wear out the heater faster.

A house with "harder" water will increase deposits lay down in heating coil, causing hot spots and poor heat conduction and thus users need to increase heating power, shortening its lifespan.

I think average users don't want to know these.... reality is a bit sad
see the photo, oredi warning there... chrome pipe or faucet should not be used
electric, water, metal should not mix, and the recipe is complete here
just lucky the ELCB is tripped, else later found out "elcb is bypassed because always trip since the plumbing technician say is ok"

TS been trying to kill himself for months and haven't succeeded? Lol

I think most people correctly pointed out that these piping are meant to be used with storage water heater. TS pulak installed instant water heater. And do you always turn on the inlet valve before use and turn it OFF after use?

1st picture and this, kennot imagine how TS didn't see sparks flying or tak masuk lagi berita for electrocution.


Gila tau to see ayer inside the unit

its does

looks like sinjiapor to me

i'm using the same model n brand that TS use for my condo in KL

few years using it so far so good

Singapore water is super clean.....

I think leak is because of piping or joven brand ?

Do your house use 2 metal pipe also?

The technician is not water heater expert

Houseowner want to save money