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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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