![Fault code u4 and u0. Also there are two head units on the condenser. I also received same code for other mini split Fault code u4 and u0. Also there are two head units on the condenser. I also received same code for other mini split](https://f01.justanswer.com/sAWjYyu2/image0.jpg)
Fault code u4 and u0. Also there are two head units on the condenser. I also received same code for other mini split
![We have a Daikin ducted air conditioner. I had error code U4. We were told to switch off outdoor unit at isolator for We have a Daikin ducted air conditioner. I had error code U4. We were told to switch off outdoor unit at isolator for](https://ww2.justanswer.com/uploads/MrEureka/2011-12-24_102353_dknn.jpg)
We have a Daikin ducted air conditioner. I had error code U4. We were told to switch off outdoor unit at isolator for
![U4 error code Daikin |Daikin Ac error code list |VRV Ac Repairing |Vrv Ac problems #mractech #daikin - YouTube U4 error code Daikin |Daikin Ac error code list |VRV Ac Repairing |Vrv Ac problems #mractech #daikin - YouTube](https://i.ytimg.com/vi/NNeG_6S0BJQ/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLCzHkEoxLRbeASvj9yQUkz_lAXNiA)
U4 error code Daikin |Daikin Ac error code list |VRV Ac Repairing |Vrv Ac problems #mractech #daikin - YouTube
![DAIKIN ERROR CODE U 4 SOLUTION// ERROR CODE TROUBLESHOOTING // INVERTER AC DAIKIN // DAIKIN SPLIT// - YouTube DAIKIN ERROR CODE U 4 SOLUTION// ERROR CODE TROUBLESHOOTING // INVERTER AC DAIKIN // DAIKIN SPLIT// - YouTube](https://i.ytimg.com/vi/5jaJqCdFc7I/maxresdefault.jpg)