hot water cylinder

[jase158]

My bro's Hot water cylinder keeps resetting itself, it is a direct cylinder, heated purely by the immersion, the immersion heater keeps resetting, meaning he has no hot water. I have replaced, the thermostat, no luck, the whole immersion, no luck. he has been on an electrical forum and they reckon its the tank. But I don't understand how a brand new immersion would break in a few days. They are definetly the correct ones, the ones for hard water, from my local merchant.

 

[jtsplumbing]

Is wiring correct ? did you replace cable to heater ?

 

[jase158]

No, I think it is cable as was frayed when I cut it back, The sleeving literally fell off, but this shouldn't make it reset itself/ over heat, should it?

 

[jase158]

wiring is definetly correct, fitted hundreds of these and always triple check before switching it on and check after I switch it on

 

[Leo21]

Do you mean it's tripping on overheat, it's little button you reset on the heater under the cap? If yes swap it, I've had faulty ones of these from new.

 

[jase158]

Do you mean it's tripping on overheat, it's little button you reset on the heater under the cap? If yes swap it, I've had faulty ones of these from new.

I did, swapped just the thermostat once and then the whole thing with new thermostat again, both still causing problems

 

[jtsplumbing]

Then get electrics checked out, I had one , getting a low voltage on pipework & cylinder,

 

[buckley plumb]

I fitted new immersion last wk and it leaked through the thermostat pocket - I was not impressed neither was the merchant when I nearly threw it at him it was the last job home on a fri :-(

 

[AWheating]

you would hope that an electrical fault would work the circuit protection.

whats the stat set at? set it alot lower and see if it trips.