Afternoon guys,

Wondered if someone could point me in the right direction?

Have a Trane RTAA 217, that is displaying a latch fault.

We had this issue, replaced the aux contactors for the transition contactor as these had failed and caused the latch fault, compressors would not enable.

Replaced all of the contactors and aux, as these were original anyway, fault cleared and chiller has been running for days.

Now latch fault has returned and wondered if anyone has can point me in the right direction on what to look for?

Thanks in advance