Gree GWC18MC-D3DNA3F/I

46
Installation and Maintenance
Service Manual
3
Overcurrent
protection E5
□ ■ ☆ □
During cooling and
drying operation,
compressor and
outdoor fan stop
while indoor fan
operates. During
heating operation,
all loads stop.
Power voltage
is unstable, big
uctuation.
1. Check whether
power supply
network is
abnormal;
Power voltage is
too low; overload.
2. Reduce load;
Malfunction of
hardware.
3. Replace
outdoor unit's
main board AP1
4
Communication
malfunction E6
□ □ □ ☆
During cooling and
drying operation,
compressor and
outdoor fan stop
while indoor fan
operates. During
heating operation,
all loads stop.
See 9.3
(diagnosis of
communication
malfunction)
Refer to
maintenance
owchart
5 Overload protection E8
■ □ ■ ■
During cooling and
drying operation,
compressor and
outdoor fan stop
while indoor fan
operates. During
heating operation,
all loads stop.
See 9.3(diagnosis
of overheating
prevention
and overload
protection)
Refer to
maintenance
owchart