Riello AARIA START - Page 26

COMMISSIONING AND MAINTENANCE
26
Led 1 Description Remarks
20
Electronic board
overtemperature
protection sensor
fault
After 3 consecutive interventions
in 1 hour, the unit resets after
problem resolution
21
Internal unit
overload
The unit resets after problem
resolution
22
Internal unit anti-
freeze protection
The alarm activates when the
indoor unit heat exchanger
probe is lower than the setpoint
for 2 minutes
The unit resets after problem
resolution
24
Compressor motor
overcurrent
The unit resets automatically
25
Overcurrent
protection for
single- phase of the
compressor
The unit resets after problem
resolution
In the presence of operating abnormalities, the unit is secured
and blocked.
9
Safety block can occur randomly.
9
Wait for at least 10 minutes before restarting the unit.
9
If the fault occurs again, an accurate check of the device
components is required. Contact R Technical Support
Service.
9
Indoor units with display signal faults with an alphanumeric
code. Consult the matching outdoor unit instruction booklet
for the installer.