Table 1 provides LED
status indicator information for troubleshooting the controllers.
Note:
If you
experience short circuits in the 24 VAC power supply causing protective devices
such as breakers or fuses to trip, make sure that the power connections on the
VMA
are
not reversed. The most common cause of this problem is when the 24 VAC power
supply on the VMA
is reversed but not reversed on a connected
secondary device. Improper wiring of this power terminal may cause a short
circuit across the 24 VAC power supply on -1 models.