Midea V4+R Series User Manual

V4+R VRF 50/60Hz
201608 71
Part 5 - Diagnosis and Troubleshooting
4.12 H8 Troubleshooting
Digital display output 4.12.1
Description 4.12.2
 Discharge pipe low pressure protection. When the discharge pressure falls below 0.3MPa, the system displays H8
protection and all units stop running. When the discharge pressure returns to normal, H8 is removed and normal
operation resumes.
 Error code is only displayed on the unit with the error.
Possible causes 4.12.3
 Outdoor unit stop valves are closed.
 Pressure sensor not connected properly or has malfunctioned.
 Insufficient refrigerant.
 Low pressure side blockage.
 Poor evaporator heat exchange.
 Main PCB damaged.

Midea V4+R Series Specifications

General

Brand	Midea
Model	V4+R Series
Category	Air Conditioner
Language	English