Trane LO - Manual (Page 46)

Tracer
®
ZN.010
and ZN.510
46 UNT-IOM-6
Troubleshooting
Figure 28. The Tracer ZN.010 board.
Table 10. Red Service LED Activity
Red LED Blink Activity
LED off continuously when power
is applied to the controller
LED on continuously, even when
power is applied to the controller
LED flashes once every second
LED Activity
Red SERVICE LED
Red Service LED
Green STATUS LED
Yellow COMM LED
Description
Normal operation
Someone is pressing the service button or the controller has failed.
Use Rover™, Trane’s service tool, to restore the unit to normal
operation. Refer to the Rover™ product literature for more information.