Yep.... 
Sounds like your t/c has gone "open circuit". May be easily rectified depending on where the break is. Best to do a close inspection along the t/c from whoa to go to see if you can locate it, otherwise a new t/c will be the only way out... By the way, you can't join a broken t/c cable/wire as such, rather you need to shorten the t/c back to the break and create a new t/c junction.
Also, just taping the t/c to the Boiler somewhere is not a great idea, regardless that you've used thermal interface compound. You really need to screw it to the top of the Boiler using one of the t/stat mounting screws if possible; and the TIC too of course.
Those PID parameters all look a bit odd to me also but until you have a working t/c and it is mounted solidly and securely, will be better to wait until you've fixed that side of things up.
Mal.

Sounds like your t/c has gone "open circuit". May be easily rectified depending on where the break is. Best to do a close inspection along the t/c from whoa to go to see if you can locate it, otherwise a new t/c will be the only way out... By the way, you can't join a broken t/c cable/wire as such, rather you need to shorten the t/c back to the break and create a new t/c junction.
Also, just taping the t/c to the Boiler somewhere is not a great idea, regardless that you've used thermal interface compound. You really need to screw it to the top of the Boiler using one of the t/stat mounting screws if possible; and the TIC too of course.
Those PID parameters all look a bit odd to me also but until you have a working t/c and it is mounted solidly and securely, will be better to wait until you've fixed that side of things up.

Mal.


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