hi all, i want to know if my water heater is using 20A socket. how to check?

is the wiring use for lighting is the same with the water heater or water heater need thicker wires ? ?

SO stone age style. Just use clamp meter to see the ampere usage

if the socket have big switch and big neon light then it 20A but need picture for confirmation.

If you use lighting for heater sure will cause issue later. Not now, not a year or 2 but few years down, likely some issue start some crop like tripping or no electric supply at all.
Light is 1.5mm. Heater according to standard should be 4mm but many owner cry when see the price so most use 2.5mm wire. I personally will not provide any warranty for the job if owner want to use 2.5mm wire.

got neon light, but no 20A written on below or above the light.

so i just need to open the water heater let water run for 10 minutes ? if it really has problem, where the burning smell will come from ? the socket it self ?

how much to get a technician to check ?

got neon light, but no 20A written on below or above the light.

so i just need to open the water heater let water run for 10 minutes ? if it really has problem, where the burning smell will come from ? the socket it self ?

how much to get a technician to check ?

Gang Red Neon Indicator Legrand Switch
for the switch this one exactly same but for the socket i havent check.

oh shit, you got it all right. how much to fix this ? need to do from head to toe ? rewiring everything ?

the water heater uses 3.6Kw, should be 16 A?

actually i'm renting a house, it had been fixed once. my landlord either knew or still don't know exactly what is happening.

how much it cost if just ask the wire man come to do checking and give plans & advice ?

can i get electrocuted from this ?

if the developer provided the water heater point already, it means make the work much more easy ?

Usually the water heater point provided by the developer for new houses or apartments is direct from DB?

The test equipment is an RCD tester.All three wires (live, neutral and earth) are connected to it. The 3LEDs on the tester will lit showing a good live, neutral and earth connection.
. There's a test button on the RCD tester

Press the test button.

The water heater RCD must trip without tripping out the main RCD and the LCD display will show a tripping time in ms(milliseconds) with the leakage to earth current in mA(milliamps). The readings should be less than 200ms and 10mA.

Have your water heater RCD tested by your wireman and have it recorded on a test report with your wireman's PW number and signature.

Sleep a little easier knowing that your water heater electrical connection will disconnect if there is anything wrong with the water heater and not harm/kill anyone.

Any 13A socket in the bathroom should be similarly tested to make sure it complies to the ST guidelines.

Hope this helps.

Yes, however some homes have a 13A socket beside the bathroom washbasin.. usually those higher class landed properties..

I mean if the 13A socket is installed within the bathroom then it has to be protected with a 10mA RCD to comply to ST. It is a mandatory requirement.

You misunderstood.. the water heater is on a 20A double pole neon switch outside the bathroom.. only the wiring terminal from 20A switch to water heater location is present.

I meant some bathrooms has an additional 13A socket beside the washbasin (for hairdryer or shavers, whatever). It is this 13A socket which has to be protected..

Hopefully that's clear..