Suction temperature too high alarm of trane cgam chiller

I have an alarm in our chiller TRANE CH530. "SUCTION TEMPERATURE TOO HIGH alarm" in circuit 2. and I noticed that the discharge pressure in circuit 2 is lower compared to circuit 1. considering that both circuit are running. What is the possible cause of the alarm?

Hi
It could be a faulty sensor.
Possibly a leak.
Check your txv settings
Good luck

Goshen,
thanks for the information....