Alarm 229

NIBE heat pumps are equipped with an electronic function to monitor or
prevent frequent occurrence of short compressor running times.

The function was specially developed to counteract increased
compressor wear due to intermittent compressor operation.

The function is designed in such a way that after 3 consecutive
compressor starts with a subsequent compressor running time of less
than 5 minutes, the compressor operation is blocked and alarm message
229 (short running time) is issued.

A subsequent restart is only possible after manually unlocking
(resetting the alarm) the system via the device display or via the
NIBE myUplink online portal.

The occurrence of alarm 229 is intended to provide the opportunity to
optimize the system or the external conditions so that the compressor
running time can be kept within an appropriate range.

The following causes can trigger alarm 229 (short running times):
                  
    Heating operation with too little power consumption
                  
    Active cooling operation with too little power consumption

    Active cooling without using a room temperature sensor
                  
    Hot water preparation with SG-Ready function for inappropriate
    domestic water settings
                  
    As already mentioned, the alarm can be reset manually (error reset)

If the alarm occurs frequently, we recommend that you have the
system checked by your installer.