Error code display and actions
The error codes are viewed on the display screen. After the error codes are displayed, the system
is shut off for 60 sec. and re-started (except for ba11). If the same error occurs within 30 minutes,
the A/C system will be completely stopped. In this case, it can only start again if the error has
been solved and the system has been completely switched off and on again.
Error codes and causes
AAA
Persistent low voltage (below 195 Volt for more than 5 sec.)
A01
Low pressure cut-out compressor 1
→ Not enough refrigerant in the system, please inform service station.
→ Sea water temperature in heat mode too low (<7°C), heat mode not
possible.
A02
High pressure cut-out compressor 1
→ Sea water circuit interrupted, please check circuit.
→ Too much refrigerant in system, please call service station.
→ Sea water temperature in heat mode too high (>17°C), heat mode not
possible.
A03
Low pressure cut-out compressor 2
(causes see A01)
A04
High pressure cut-out compressor 2
(causes see A02)
A05
Low pressure cut-out compressor 3
(causes see A01)
A06
High pressure cut-out compressor 3
(causes see A02)
A07
Low pressure cut-out compressor 4
(causes see A01)
A08
High pressure cut-out compressor 4
(causes see A02)
A09
Room temperature sensor (external or internal) defective or absent.
A10
Temperature sensor at evaporator defective or absent.
CA11
All compressors have been deactivated. Re-activate with the code menu
bA11
Blower operation not yet active (not a system stop). The current chilled
water temperature does not correlate with the programmed room-
temperature.
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