Midea V4+R Series User Manual

V4+R VRF 50/60Hz
201608 93
Part 5 - Diagnosis and Troubleshooting
4.20 P9, H9 Troubleshooting
Digital display output 4.20.1
Description 4.20.2
 P9 indicates fan module protection. All units stop running.
 H9 indicates that P9 protection has occurred 3 times in 60 minutes. When an H9 error occurs, a manual system restart
is required before the system can resume operation. The cause of an H9 error should be addressed promptly in order
to avoid system damage.
 Error code is only displayed on the unit with the error.
Possible causes 4.20.3
 Switch ENC2 incorrectly set.
 Power or communication wires not connected properly.
 Fan motor blocked or has failed.
 Power supply abnormal.
 AC filter board damaged.
 Fan module damaged.
 Main PCB damaged.
Procedure 4.20.4
P9 / H9
The capacity set on switch ENC2 on the
main PCB and the capacity given on the
unit’s nameplate do not match
1
Ensure the setting on switch ENC2
matches the unit capacity given on the
unit’s nameplate
No
Some power wires or communication
wires of fan module are not connected
properly
2
Yes
Ensure power and communication wires
are connected properly
No
The fan motor is blocked or has failed
3
Yes
Remove obstruction or replace the fan
motor
No
Flowchart continued on next page …

Midea V4+R Series Specifications

General

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