What to do if there are communication problems between indoor and outdoor units of my Nibe Heat Pump?
- JJamie FinleyAug 2, 2025
To address communication problems between the indoor and outdoor units of your Nibe Heat Pump, start by verifying the connection between terminals C1 and C2 on the units' terminal blocks. Also, ensure the communication cable is screened and all ground cables are correctly connected. Check the communication fuse (F2) on both the indoor and outdoor units. Confirm that the outdoor unit is activated and functioning correctly, and that the power cable is properly connected to the terminal block. Inspect the circuit board for any burn marks and check that the fan motor functions correctly without causing a short circuit in the indoor unit circuit board.