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Problem
Fault: AC High Voltage
Fault: DC Low Voltage
Fault: DC High Voltage
Fault: Communication Loss
Fault: Overcurrent Alarm
Fault: High VFD Temperature
Fault: Fan Fault
Fault: Duplicate Zone Instance
Fault: Low Refrigerant
12
Possible cause
The supply voltage is too high.
The battery capacity is reduced.
The supply voltage is too high.
An electrical part has failed.
Electrical noise interference.
An electrical part has failed.
Airflow is restricted due an object in the airflow path.
The cooling fan is not operating correctly.
An electrical part has failed.
More than one unit in a network has been assigned to the
same zone ID.
A mechanical interface has failed and lost refrigerant.
Suggested remedy
1.
Verify the voltage is correct at the power source.
2.
If the problem persists, contact a qualified service techni-
cian.
1.
Charge or replace the battery bank.
2.
If the problem persists, contact a qualified service techni-
cian.
1.
Verify the voltage is correct at the power source.
2.
If the problem persists, contact a qualified service techni-
cian.
Contact a qualified service technician.
Ensure communication cables and connectors are not in close
proximity to power cables or large electrical equipment.
Contact a qualified service technician.
Remove the obstruction from the heatsink cooling airflow
path.
Contact a qualified service technician.
Contact a qualified service technician.
Check the zone assignments on all units in the network to en-
sure each unit has a unique zone ID.
Contact a qualified service technician.
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