Olimpia splendid OS-CEBCH36EI, Instructions For Installation, Use And Maintenance Manual, Page: 55 / 88

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ENGLISH
3.1.9
ALARMS (fig. 40)
The Alarms icon calls up the window that shows the current alarms, current overrides and the alarms history.
To cancel the current alarms press the Reset icon and confirm.
To reset the alarms history, press the Reset icon, then enter the Service password and confirm.
Alarms on internal unit display
Table shows the alarms or overrides that can appear on the control panel display.
Overrides DO NOT represent system malfunctions; they signal particular temporary operating conditions. Overrides
DO NOT require the intervention of technical support.
When an alarm is triggered, an alarm window appears on the display together with an audible signal that lasts for a
maximum of sixty seconds. Press the icon in the alarms window to call up the Alarms window, or press the icon
to return to the main window; the audible signal can be stopped by touching one of the two icons. When an alarm is
triggered the alarm contact between terminals 16 and 17 is also closed (figs. 20, 21).
Override/Alarm Code Mnemonic on display Override/Alarm Description
Override #1 Or1 Incoming water temperature lower that 10°C in heating mode
Override #2 Or2 Main exchanger evaporator frost protection
Override #3 Or3 External heat source activation request
Override #4 Or4 TA contact open
Override #5 Or5 External unit capacity limit
Override #6 Or6 External unit defrosting cycle active
Override #7 Or7 External unit DHW not available
Override #8 Or8 DHW flow switch intervention
Override #9 Or9 DHW evaporator exchanger evaporator frost protection
Override #10 Or10 DHW compressor temperature protection
Override #11 Or11 Main circulation pump maintenance
Override #12 Or12 Water filter maintenance
Override #13 Or13 DHW circulation pump maintenance
Alarm #1 A1 Inlet water sensor faulty
Alarm #2 A2 Outlet water sensor faulty
Alarm #3 A3 DHW storage tank temperature sensor faulty
Alarm #4 A4 T4 outside air sensor faulty
Alarm #5 A5 Main exchanger frost protection
Alarm #6 A6 Main circuit flow switch alarm
Alarm #7 A7 Communication error with the external unit
Alarm #8 A8 Anti-legionella cycle non completed
Alarm #9 A9 RS485 serial port communication error
Alarm #10 A10 Overcurrent protection (external unit alarm **)
Alarm #11 A11 Power voltage protection (external unit alarm **)
Alarm #12 A12 External unit phase sequence (external unit alarm **)
Alarm #13 A13 External unit temperature sensors faulty (external unit alarm **)
Alarm #20 A20 DHW circuit flow switch alarm
Alarm #21 A21 DHW evaporator frost protection
Alarm #22 A22 DHW compressor overheating
Alarm #23 A23 DHW compressor flow temperature sensor faulty
Alarm #24 A24 DHW condenser temperature sensor faulty
Alarm #25 A25 DHW evaporator temperature sensor faulty
Alarm #100 A100 Internal unit electronic malfunction
Alarm #101 A101 Internal unit electronic malfunction
Alarm #102 A102 Internal unit electronic malfunction
Alarm #105 A105 Internal unit electronic malfunction
** Check alarm type on external unit board sect. 3.5.2
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