Gree GEH18AA-K3DNA1D User Manual

55
Installation and Maintenance
Service Manual
Malfunction and Mode Display Sheet
Malfunction name Malfunction type Double 8
Zero-cross detection circuit malfunction Hardware malfunction U8
Malfunction protection of jumper cap Hardware malfunction C5
No feedback of indoor motor Hardware malfunction H6
Indoor ambient temperature sensor is
open/short- circuited
Hardware malfunction F1
Indoor evaporator temperature sensor is
open/short-circuited
Hardware malfunction F2
Liquid valve temperature sensor is
open/short-circuited
Hardware malfunction b5
Gas valve temperature sensor is
open/short-circuited
Hardware malfunction b7
Module temperature sensor is
open/short-circuited
Hardware malfunction P7
Outdoor ambient temperature sensor is
open/short- circuited
Hardware malfunction F3
Outdoor condenser inlet pipe temperature
sensor is open/short- circuited
Hardware malfunction A5
Outdoor condenser middle pipe
temperature sensor is open/short- circuited
Hardware malfunction F4
Outdoor condenser outlet pipe temperature
sensor is open/short- circuited
Hardware malfunction
A7
Outdoor discharge temperature sensor is
open/short- circuited
Hardware malfunction F5
Communication malfunction of indoor
unit and outdoor unit
Hardware malfunction E6
Compressor phase current circuit
detection malfunction
Hardware malfunction U1
Compressor demagnetization protection Hardware malfunction HE
DC busbar voltage drop malfunction Hardware malfunction U3
Module temperature protection Hardware malfunction P8
shortage of freon or blockage protection
for the system
Hardware malfunction F0
Capacitor charging malfunction Hardware malfunction PU
High voltage protection for the system Hardware malfunction E1
Low voltage protection for the system Hardware malfunction E3
Compressor blockage Hardware malfunction LE
Drive module reset Hardware malfunction P0
Overspeed Hardware malfunction LF
Drive board ambient temperature sensor
malfunction
Hardware malfunction PF
AC contactor protection Hardware malfunction P9
Temperature drift protection Hardware malfunction PE
Sensor connection protection Hardware malfunction Pd
Drive board communication malfunction Hardware malfunction P6
Compressor heat overload protection Hardware malfunction H3
Indoor unit and outdoor unit do not
match
Hardware malfunction LP
Memory chip malfunction Hardware malfunction EE
Wrong connection of communication
cable or expansion valve malfunction
Hardware malfunction dn
Complete unit current detection
malfunction
Hardware malfunction U5
Wrong connection of communication
cable or expansion valve malfunction
detection mode
Running mode dd
Mode conict Running mode E7
Refrigerant recovery mode Running mode Fo
Defrosting or oil return in heating mode Running mode H1
Rating cooling or heating Running mode P1
Max cooling or heating Running mode P2
Middle cooling or heating Running mode P3
Min cooling or heating Running mode P0
Compressor losing of synchronism
Displayed on the
remote controller in
200s; display on the
nixie tube after 200s
H7
Compressor start failure Lc
High discharge temperature protection of
compressor
E4
Overload protection E8
Complete unit overcurrent protection E5
Phase current overcurrent protection P5
Module current protection H5
4-way valve commutation malfunction U7
Complete unit current protection with
limiting frequency or lowing down
frequency
Displayed on the
remote controller
F8
Module current protection with limiting
frequency or lowing down frequency
Displayed on the
remote controller
En
Overhigh discharge with limiting
frequency or lowing down frequency
Displayed on the
remote controller
F9
Freeze protection with limiting frequency
or lowing down frequency
Displayed on the
remote controller
FH
Overload with limiting frequency or
lowing down frequency
Displayed on the
remote controller
F6
Module temperature protection with
limiting frequency or lowing down
frequency
Displayed on the
remote controller
EU
Oil return in cooling mode
Displayed on the
remote controller
F7
Cold blow protection
Displayed on the
remote controller
E9
Freeze protection
Displayed on the
remote controller
E2
Malfunction protection of outdoor fan (outdoor fan is blocked or
not connected -- if there're dual outdoor fans, L3 indicates fan 1,
and LA indicates fan 2.
Hardware malfunction LA
Malfunction of DC fan/malfunction protection of
outdoor fan (outdoor fan is blocked or not connected if there're
dual outdoor fans, L3 indicates fan 1, and LA indicates fan 2)
Hardware malfunction L3

Gree GEH18AA-K3DNA1D Specifications

General

Brand	Gree
Model	GEH18AA-K3DNA1D
Category	Air Conditioner
Language	English