As Matt pointed out, the TRH.12m.c fan died yesterday.  To avoid further possible damage to the fan, I've logged in and set the fan duty cycle to 0, which hopefully will effectively turn the fan off.  If we get a warm day, I'll try to turn it back to 40% to see if the fan restart.

BTW, the process to change the duty cycle is:

ssh cu

rs 4

control-U (enter TRH settings menu)

DUT 40

EXT (exit TRH settings menu)

control-c (exit rserial)

exit (exit ssh session)


1 Comment

  1. Steve Oncley AUTHOR

    Since temperatures have been warmer recently and there hasn't been recent precip, I've just (12/7 12:25) done these commands to try to restart this fan.  The Rfan values are erratic, though it looks like it is trying to get to 4200rpm, which would be okay.  The temperatures immediately ramped down from about +2 to -2 (with the neighboring TRHs reading -2.3), indicating that aspiration is occurring.  Thus, I'm going to leave it like this for the near future.  It is on the list to be checked by the next field visit next week.