Troubleshooting - Gree GMV-36WL/A-T(U) Manual

DC Inverter Side Discharge VRF Ⅱ for North America
EU AA class energy
AA
efficiency test mode
Charge refrigerant by
AE
hand
Startup debugging
AP
confirmation of unit
Ad Limit opereation
Upper limit setting for
the collocation
n2 matching ratio for
indoor unit and
outdoor unit
n7 Malfunction inquiry
nH Heating only model
nF Fan model

2 Troubleshooting

Troubleshooting principle
Communication malfunction
(1)
Communication
malfunction
Check whether indoor unit and
outdoor unit is power supplied
Check whether the
communication wire between
indoor unit and outdoor unit is
correct
Measure whether the
communication wire is in
normal
AH
AF
Long-distance emergency
AU
SE setting for the
n0
Limit setting for the
n4
maximum ouput capacity
Parameters inquiry
n8
nC Cooling only model
NO
YES
NO
YES
NO
Heating
Fan blow
stop
operation
Energize indoor unit and
outdoor unit
Connect the communication
wire for indoor unit and
outdoor unit correctly
Replace communication
95
Charge refrigerant
AL
automatically
AJ Cleaning alarm for filter
Ab Emergency stop
Defrosting period K 1
n1 setting
Engineering series
n6 number inqury for
indoor unit
nA Heat pump unit
nE Negative code
wire