Nibe SPLIT ACVM270 - Page 37

30 - S. fault Outdoor, 32 - S. fault Cond out, 33 - S. fault Liquid line, 34 - S. fault HW, 35 - S.
fault AH, 36 - S. fault supply 1, 37 - S. fault supply 2
Is the actual sensor correctly
connected?
YES
YES
Replace the EBV board (AA22).
Action.
Defective sensor - replace.
Are the characteristics for the
sensor OK? (See "Temperature
sensor" section)
NO
NO
31 - S. fault HP
Is the pressure transmitter (BP4)
correctly connected?
YES
NO
Replace the pressure transmitter.
Action.
Check the flow through the heat
exchanger (EP2).
Does the pressure (external
meter) correspond with the value
displayed in the indoor module?
NO
YES
37Chapter 5 | TroubleshootingNIBE SPLIT ACVM270