immersion heater failed after 4 months

[Matt0029]

Check the element resistance, if its not failed then should read ~ 20 ohms.

Thanks between live and neural?

 

[John.g]

Ensure power switched out, remove immersion cover and check resistance across element, if unsure, post a photo with cover removed.

 

[Matt0029]

Ensure power switched out, remove immersion cover and check resistance across element, if unsure, post a photo with cover removed.

Thanks and should be 20ohms if correct? Also is the reset button usually under the cover on the newer elements?

 

[John.g]

Around 20 ohms or so, if the element is failed then infinity ohms, open circuit.
Don't know where reset will be.

 

[Matt0029]

Any chance it could be a cylinder stat. Problem. Is a direct cylinder so not should if just works on the immersion stat. As the immersion usually a standard size? I have my unvented etc but have manily just installed new.

 

[John.g]

Could be the stat, a multimeter will soon establish what's wrong.

 

[Matt0029]

Could be the stat, a multimeter will soon establish what's wrong.

Thanks you test the resistance on the immersion from neutral to the element thermostat point?

 

[John.g]

Can you post a photo of the immersion with the cover removed, can then advise of the appropriate tests.

 

[Last Plumber]

I am unclear whether you are saying it has overheated and tripped the HLS (High Limit Stat), or whether it stopped working and you are trying to find the reason?

Is this for you or a customer?

The element with live and neutral disconnected should read around 19 Ohms or there and there about.

There should be live to it and neutral from it.

There should be continuity through the HLS and the control/temperature stat should open and close dependent on temperature.