Riello AMS N User Manual page 57

Abnormal operation lights
Abnormal operations are identified by
flashing of led OPER.
In order to reset the starting conditions:
Press the on-off button.
If the unit starts working again
regularly, the anomaly was a random
occurrence.
If the unit starts working again
regularly, the anomaly was a random
occurrence.
Wait for 10 minutes.
Position the system's main switch in
the "off" position.
Position the unit's main switch in the
"on" position.
AMS N
Code Description
01 Defective environmental probe
02 Temperature sensor error
04 EEPROM error
07 Indoor - outdoor communication error
08 Control panel - unit communication error
12 Drain pump malfunction
16 Indoor unit malfunction
AMT N
Code Description
E0 Drainage system abnormal
E1 Indoor environment sensor abnormal
E2 Indoor coil sensor abnormal
E3 No zero cross signal input
E4 EEPROM failure
E5 Indoor abnormal mode operation
E6 Outdoor abnormal mode operation
E8 Failure communication between wired controller
E9 Failure communication between indoor and outdoor
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