View Full Version : Trane chiller Rtaa 324 - display no communicatio

20-05-2017, 06:40 PM
Hi all,
Trane chiller model RTAA 324
Shutdown for maintenance after completing job restored the power found display showing (adaptive control )
No Communication, No Valid Data.
Checked voltages and signals on the comms modules also checked fuses all seemed ok. Has anyone experienced this problem.

Kindly advice to fix the above

22-05-2017, 12:49 PM
Hi Anish,
If wiring, voltage and communication cables are OK and red leds (receive – transmit) on the back of the display module are not blink, then most probably the main module A1 is dead.

10-06-2017, 07:47 PM
The main module A1 can be repaired or to be replaced by new one..

Pls advice