DC Inverter Multi VRF System
36
Status:
Error Code
Content
Error Code
Content
A0
Unit waiting for debugging
AP
Debugging confirmation when starting up
the unit
A1
Inquiry of compressor operation parameters
AU
Long-distance emergency stop
A2
Refrigerant recovery operation of
after-sales
Ab
Emergency stop of operation
A3
Defrosting
Ad
Limit operation
A4
Oil-return
n0
SE operation setting of system
A6
Heat pump function setting
n1
Setting of defrosting cycle K1
A7
Quiet mode setting
n2
Setting of upper limit of IDU/ODU
capacity distribution ratio
A8
Vacuum pump mode
n4
Limit setting for max. capacity/output
capacity
A9
IPLV test
n6
Inquiry of malfunction
AA
EU AA level EER test mode
n7
Inquiry of parameters
AH
Heating
n8
Inquiry of project code of IDU
AC
Cooling
nA
Heat pump unit
AL
Charge refrigerant automatically
nH
Heating only unit
AE
Charge refrigerant manually
nC
Cooling only unit
AF
Fan
nE
Negative code
AJ
Cleaning reminding of filter
nF
Fan model
8 Maintenance and Care
Regular check, maintenance and care can extend unit’s service life. Please have specialized
person in charge of the management of air conditioners.
8.1 Outdoor Heat Exchanger
Outdoor heat exchanger shall be cleaned regularly, which is at least once every two months. You
can use a dust catcher with nylon brush to clean away the dust on the heat exchanger. If compressed
air source is available, it also can be used to clean the heat exchanger. Do not clean it with water.
8.2 Drain Pipe
Please check regularly whether drain pipe is blocked or not. Make sure condensate can be
drained out smoothly.
8.3 Notice before Seasonal Use
(1) Check whether air inlets and air outlets of indoor and outdoor units are blocked.
(2) Check whether ground connection is reliable or not.
(3) Check whether batteries in the remote controller are replaced or not.
(4) Check whether air filter is properly installed.
(5) If unit starts up after not operating for a long time, it should be power on 8 hours before
operation starts so as to preheat the outdoor compressor.
(6) Check whether outdoor unit is securely installed. If there is any problem, please contact
Gree authorized service center.