Gree GWH12QB-K3DNA6O Service Manual page 71

malfunction of
30
read EEPROM
Charging
31 malfunction of
capacitor
Circuit
malfunction
32 of module
temperature
sensor
Module
33 temperature
protection
68
Flash
EE 15 times
every 3s
Flash
PU 17 times
every 3s
Flash
P7 18 times
every 3s
Flash
P8 19 times
every 3s
During cooling and drying
operation, compressor and
outdoor fan stop while indoor
fan operates. During heating
operation, all loads stop.
During cooling and drying
operation, compressor and
outdoor fan stop while indoor
fan operates. During heating
operation, all loads stop.
During cooling and drying
operation, compressor and
outdoor fan stop while indoor
fan operates. During heating
operation, all loads stop.
During cooling and drying
operation, compressor and
outdoor fan stop while indoor
fan operates. During heating
operation, all loads stop.
1. Check whether the
Wrong match between capacity of indoor unit
indoor unit and outdoor and outdoor unit is
unit; matching with each
other;
Hardware malfunction
2. Replace indoor units
of indoor units main
main board AP2;
board;
Hardware malfunction
3. Replace outdoor
of outdoor units main
units main board AP1;
board;
See 9.3 (diagnosis of
Refer to maintenance
charging malfunction
flowchart
for capacitor)
Hardware malfunction
1. Replace outdoor
of outdoor units main
units main board AP1;
board;
1. After the system is
de-energized for 20min
Radiating grease on and discharge, check
IPM module of outdoor whether radiating
units main board is not grease on IPM Module
enough; screws havent of outdoor control board
been fixed tightly; AP1 is enough and
whether the radiating is
fixed tightly;
Hardware malfunction
2. Replace outdoor
of outdoor units main
units main board AP1;
board;
Installation and Maintenance
Service Manual