Artico SY-AC900 User Manual - Page 15

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Troubleshooting

Do not attempt to disassemble, repair or alter the equipment yourself. This will void the warranty.
The following table lists the common failures and maintenance methods of the series of portable air
conditioners. When the machine runs abnormally, the following table can be a simple diagnose and
repair prescription. If the problem persists, contact Sytech Technical service center.
TROUBLE
The A/C doesn't
work
The refrigeration
effect of the
conditioner is not
good
The air conditioner
makes too much
noise
The compressor
Does not work
E1 on LCD
E2 on LCD
E4 on LCD
Remote control
doesn't work
POSSIBLE CAUSE
Not plug in
The display panel displays
"P2"
The Off timer function is activated Restart the unit after turning it off for 3
Direct sunlight
Doors or windows are open. Room
is too crowded or heat source
placed in the room
Dirty filter screen
Air inlet or air outlet is blocked
The A/C is not placed on a flat
level
The compressor delay protection
has been activated
Coil temperature sensor failure
Indoor temperature sensor failure
Anti-freeze protection. When the
coil temperature is below 0ºC, the
whole machine will stop. When the
coil temperatures raises to 8ºC or
more, the protection will
disconnect and the unit will restore
to its original working state.
The distance is too far.
Control panel has not received the
signal from remote control.
The
batteries are weak.
SOLUTION
Plug in
Restart the A/C after power off and
drainage process. The unit should work
fine.
minutes.
Draw the curtain
Close the doors and windows and remove
the heat source
Clean or replace the filter screen
Remove the blockage
Place it on a flat and solid surface and try
avoid shaking.
Wait 3 minutes and restart the machine
when its temperature is reduced.
check coil temperature sensor or relevant
circuit
check room temperature sensor or
relevant circuit
Wait for the coil to defrost. The machine
will restart automatically.
Get closer to the unit and aim the remote
control to the Air outlet grille
Change the batteries