HOMCOM 823-058V81 Assembly Instruction Manual page 20

Before claiming repair, check the machine as follows:
Failures
Machine fails to start up.
Machine automatically
stops.
No cold air under
COOLING mode.
LED displays failure
code "E2"
LED displays failure
code "E3"
LED displays failure
code "E4"
Causes
Power supply failure:
1. Not plugged;
2. Plug or socket damaged;
3. Fuse broken.
TIMING shut down or set
temperature reached.
1. Room temperature lower
than set temperature;
2．Machine enters into
anti-frost protection.
Room temperature sensor
fails or damaged.
The evaporator oil pipe sensor
fails or damaged.
Water-full warning.
18
Solutions
1. Plug in;
2. Replace the power cord or
socket;
3. Replace the fuse by service
provider (Specification:
6.3A/250VAC).
Restart or wait for auto-switch.
1. This is a normal
phenomenon, the machine will
auto-switch while the room
temperature is higher than the
set temperature;
2. The machine will auto switch
after anti-frost protection is
over.
Replace the room temperature
sensor.
Replace the evaporator coil pipe
sensor.
Drain out the water.