Gree GPC07AK-K5NNA2A

47
Maintenance
Service Manual
NO. Malfunction
Name
Display Method of Indoor Unit
A/C Status Possible Causes
Error
Code
Indicator lamp
(During blinking, ON for 0.5S and
OFF for 0.5 S)
Operation
Inidicato
COOL
Indicator
HEAT
Indicator
1
Indoor
ambient
temperature
sensor is
open/short-
circuited
F1
Compressor stops
operation and
the fan changes
to operate at low
fan speed. 2min
later, the unit
will be turned off
automatically.
1. The wiring terminal between indoor
ambient temperature sensor and main
board is loosened or poorly contacted.
2. Theres short circuit due to trip-over of the
parts on main board.
3.Indoor ambient temperature sensor is
damaged (Please check it by referring to the
resistance table for temperature sensor).
4. Main board is damaged.
2
Indoor
evaporator
temperature
sensor is
open/short-
circuited
F2
Compressor stops
operation and
the fan changes
to operate at low
fan speed. 2min
later, the unit
will be turned off
automatically.
1. The wiring terminal between indoor
evaporator temperature sensor and main
board is loosened or poorly contacted.
2. Theres short circuit due to the trip-over of
the parts on main board.
3.Indoor evaporator temperature sensor is
damaged (Please check it by referring to the
resistance table for temperature sensor).
4. Main board is damaged.
3
Outdoor
condenser
temperature
sensor is
open/short-
circuited
F4
Compressor stops
operation and the fan
changes to operate
at low fan speed.
2min later, the unit
will be turned off
automatically.
1. The wiring terminal between outdoor
condenser temperature sensor and main
board is loosened or poorly contacted.
2. Theres short circuit due to the trip-over of
the parts on main board.
3. Outdoor condenser temperature sensor is
damaged (Please check it by referring to the
resistance table for temperature sensor).
4. Main board is damaged.
4
Water
over-ow
protection
H8
Compressor stops
operation and the fan
changes to operate
at low fan speed.
2min later, the unit
will be turned off
automatically.
During cooling or drying operation,condensate
water will ow into chassis. If its detected
that water inside water chassis is full for 3s
successively, it comes into water over-ow
protection. Buzzer will give out 8 sounds and
dual-8 nixie tube displays error code “H8”.
10.4 Error Code