immersion heater problems!!! all 7 of'em!

[egginyourface]

Ive been called out to about 7 different jobs this week!! All to check why newly fitted immersion heaters were not working properly.

Its always the same thing. Plumber fittied new immersion heater and since then the water doesnt get fully hot or after the 1st bath the water wont heat up enough till the next day.

Every single one i go to i find that the plumber has turned thermostat up to the max trying to fix the problem causing cut out to kick in!

My job is as always to check the wiring is done correctly and no loose connections. I never touch the thermostat.:6:

What causes this luke warm problem??

Is it a mistake made by plumber, wrong sized immersion, wrong type etc??


Somebody please tell me as i would like to understand this

 

[oldtimer]

So the danger of overheating is replaced with a danger of people standing in damp towels pressing a pen into an area with exposed live parts. Whats the chance that the Immersion cover isnt replaced ever too.

Anyone know of a cylinder stat that will take 13 amps, might do it that way from now on, dont want to have to bother with a relay.
Also does anybody know who sells these ?

I agree and advised them to stop doing this plus the reason why I asked who sells these is because the Cotherm site does not list local suppliers plus I was hoping someone would point me in the right direction ie Plum centre because Cotherm will take 3-4 days to get back and I dont fancy phoning everybody plus his dog

 

[JD6400]

I know this is going to sound like astupid question but I'm just trying to get a clear picture of what they call an 'immersion heater' in the UK.

Are they a hot water cylinder which is pressurised by the incoming water supply or are they a gravity feed tank with a ball-float valve to fill?

Hi Marvo , I personally class any fixed water heater over 15 litres as a immersion heater . Be it gravity fed pressurised or even encompassing a coil for indirect heating from another source be it solar , boiler , back boiler on a log burner or other such like source .
The electric element part can come as various options of length and power ratings ( normally 230v 3kw in a domestic setting ) they can be mounted in the tank at the bottom or from the top , even in the middle !
Hope that makes a little more sense ?

Dave

PS , I hope you do not mind me saying but , I preferred your last forum picture more . :biggrin: