Originally posted by DenisGuy
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The V3 element copper tube outer shells were prone to becoming brittle due to excessive heat. Incorrect priming procedures when steaming which exposed the upper portion of the element to air for prolonged periods at high temperatures was the main problem. Priming the boiler at power-on and especially straight after steaming as well as not leaving the steam switch on any longer than required all helps avoid this issue. I was also told that over-use of descaler can cause the copper to become brittle. I don't know if the Stainless Steel outer shell elements had similar vulnerabilities.
PS By the way did you use thermal paste between the new thermostats and boiler shell when you replaced the thermostats?
For your reference:
http://www.frcndigital.com/coffee/Si...lviaWorks.html
http://www.frcndigital.com/coffee/silviawire.html

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