Midea MCH2U-18PHH2

80
8.4.2.9 P2 (Low pressure protection) diagnosis and solution.
Error Code
P2
Malfunction conditions
If the sampling voltage is not 5V, the LED will display the
failure.
Potential causes
● Wiring mistake
● Faulty over load protector
● System block
● Faulty outdoor PCB
Trouble shooting: