57
AZVAFZMxxxR
Fig. 76
Status LED blinking red quickly: Zone Module- Control board communication error (AZVAFDAMPERxx [C/R] /
AZVAFZMRAD [C/R] / AZVAFZMxxx [C/R])
er
operation of the main board. To solve this incident check:
1. Control board status: Correctly powered.
2. Control board status: Airzone Connection Bus LEDs are operating properly.
3. Connection: Verify the polarity of the control board and thermostat connectors.
4. Wiring: Check that the voltage between the poles (A /-) and (B/-) is about 0.65 Vdc.
5. Restart the zone and re-associate it with the system.
Remember: To reset to factory values of any Lite thermostat, turn up the microswitch 8 and place the thermostat on
the base again. Press on , the LED will flash green twice when the reset process is completed.
6. Restart system: If the system is restarted, this error may be displayed in the thermostats at the beginning of the process.
This message should disappear after around 30 seconds.
Fig. 77
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