Gree GWC18MC-D3DNA3F/I

47
Installation and Maintenance
Service Manual
6
Indoor ambient
temperature
sensor is open/
short- circuited
F1
The unit will stop
operation as
it reaches the
temperature point.
During cooling and
drying operation,
compressor and
outdoor unit stop,
while indoor fan
operates; During
heating operation,
the complete unit
stops operation.
Connection terminal
between indoor
ambient temperature
sensor and main
board is loose or
poor connection.
Refer to
maintenance
owchart
There’s short circuit
due to trip-over of
the parts on main
board;
Indoor ambient
temperature sensor
is damaged (Please
check it by referring
to the resistance
table for temperature
sensor)
Main board is
damaged.
7
Indoor
evaporator
temperature
sensor is open/
short-circuited
F2
The unit will stop
operation as
it reaches the
temperature point.
During cooling and
drying operation,
compressor and
outdoor unit stop,
while indoor fan
operates; During
heating operation,
the complete unit
stops operation.
Connection
terminal between
indoor evaporator
temperature sensor
and main board
is loose or poor
connection.
Refer to
maintenance
owchart
There’s short circuit
due to trip-over of
the parts on main
board;
Indoor evaporator
temperature sensor
is damaged (Please
check it by referring
to the resistance
table for temperature
sensor)
Main board is
damaged.