Midea V8 VRF Series User Manual

V8 VRF Indoor Units
47
Troubleshooting Guide
6.1.6 A73 - The error of the linked FAPU is transmitted to the master IDU (non-series connection)
Note:
1) The type of FAPU may be HRV, VRF fresh air IDU and so on.
2) Series setting: The linked FAPU and the master IDU are connected to the air supply duct and air return duct respectively and
separately. A wired controller is used to set this installation method as a non-series connection.
Error display
Digital display
Display position (master IDU)
Panel or display box
Wired controller
Spot check interface
query
Error code is not
displayed
Error impact
Master IDU: operates normally. FAPU: stops. Other IDUs of the same system: operate normally.
ODU of the same system: operate normally.
Error trigger
The error of the linked FAPU is transmitted to the master IDU
Error recovery
Automatic recovery
Possible cause
 The FAPU is faulty.
 The master IDU's main control board is damaged.
Troubleshooting
A71/A73
Error in FAPU
After troubleshooting, is the
master IDU error
code cleared?
Replace the the main control
board of the master IDU
Fault cleared
Yes
No
Obtain the linked error code (1)
of the FAPU, and refer to the
corresponding error handling
method in the maintenance
manual of the FAPU for
troubleshooting
Note:
1. The error code can be queried after the FAPU is connected to the wired controller or the display
box.

Midea V8 VRF Series Specifications

General

Brand	Midea
Model	V8 VRF Series
Category	Air Conditioner
Language	English