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LITE THERMOSTATS (AZVAFLITE [C/R])
Lite thermostats incorporate LEDs that detect malfunctioning.
Status LED blinking purple quickly: Wired Lite Thermostat- Zone module communication error
(AZVAFDAMPERxxC / AZVAFZMRADC / AZVAFZMxxxC)
This incident blocks the control of the zone. To solve this incident check:
1. Connection: Check the polarity of the connectors of the module and the thermostat.
2. Wiring: Check that the voltage between the poles (A /-) and (B/-) is about 0.65 Vdc.
3. Wiring: Verify that the module connection bus-thermostat is not next to low-voltage wiring.
4. Module: Check the correct operation of the module, for this connect another thermostat and verify that Error 1 does
not appear on the screen.
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.
AZVAFDAMPERxxC / AZVAFZMRADC
Fig. 73
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