The PCB Thermistor is Shorted, this could also indicate a bad Main PCB.
Solution
Check the thermistor resistance and voltage from Main PCB.
DETAILS BELOW:
Thermistor Shorted
Example from Model LMV201
If Thermistor is shorted you will read less than 1 ohm
Thermistor Shorted
Example from Model LMV201
If
Thermistor is Shorted you
will read no or minimal voltage. To
confirm Main PCB is good remove
thermistor at board
connector and confirm 5Vdc
is coming from Main board.
good