[dsg-svt] SVT coolant flow and temperature sensor failures

[Brian Eng]

The HFCB temperature is now reading properly, it took a few tries disconnecting from the patch panel terminal block before it started working.

Since the coolant was on nothing was done with that sensor.

> On Jan 8, 2018, at 8:16 AM, Yuri Gotra <gotra at jlab.org> wrote:
> 
> Here are the failing SVT sensor readings:
> 
> - HFCB temperature, R3S11B, reads 55C.
> 
> - coolant outlet flow (reads > 1 lpm when chiller is stopped). Power cycling doesn't fix it.
> 
> Please check the issues and let me know your findings. Thank you