26
EN
TROUBLESHOOTING
The following cases may not always be a malfunction, please check it before asking for service.
Trouble
Analysis
Does not run
• If the protector trip or fuse is blown.
• Please wait for 3 minutes and start again, protector device may be
preventing unit to work.
• If batteries in the remote controller exhausted.
• If the plug is not properly plugged.
No cooling or heating
air
• Is the air filter dirty?
• Are the intakes and outlets of the air conditioner blocked?
• Is the temperature set properly?
Ineffective control
• If strong interference(from excessive static electricity discharge, power
supply voltage abnormality)presents, operation will be abnormal. At this
time, disconnect from the power supply and connect back 2 - 3 seconds
later.
Does not operate
immediately
• Changing mode during operation, 3 minutes will delay.
Peculiar odor
• This odor may come from another source such as furniture, cigarette etc,
which issucked in the unit and blows out with the air.
A sound of flowing
water
• Caused by the flow of refrigerant in the air conditioner, not a trouble.
• Defrosting sound in heating mode.
Cracking sound is
heard
• The sound may be generated by the expansion or contraction of the front
panel due to change of temperature.
Spray mist from the
outlet
• Mist appears when the room air becomes very cold because of cool air
discharged from indoor unit during COOLING or DRY operation mode.
The compressor
indicator (red) lights on
constantly, and indoor
fan stops.
• The unit is shifting from heating mode to defrost. The indicator will lights off
within ten minutes andreturns to heating mode.
Model Voltage Frequency
Cooling Heating
Power Current Power Current
MW121C4 NHM0, UHM0 115 V ~ 60 Hz
NOR. 1,040 W
MAX. 1,380 W
NOR. 9.40 A
MAX. 14.50 A
- -
MW122C4 NHM0, UHM0 230 V ~ 60 Hz
NOR. 1,040 W
MAX. 1,400 W
NOR. 4.80 A
MAX. 7.50 A
- -
MW182C4 NHM0, UHM0 230 V ~ 60 Hz
NOR. 1,555 W
MAX. 2,100 W
NOR. 6.90 A
MAX. 11.00 A
- -
MW242C4 NHM0, UHM0 230 V ~ 60 Hz
NOR. 2,015 W
MAX. 2,700 W
NOR. 9.10 A
MAX. 15.00 A
- -
MW121H4 NHM0, UHM0 115 V ~ 60 Hz
NOR. 1,040 W
MAX. 1,500 W
NOR. 9.30 A
MAX. 15.50 A
NOR. 960 W
MAX. 1,500 W
NOR. 8.60 A
MAX. 15.50 A
MW122H4 NHM0, UHM0 230 V ~ 60 Hz
NOR. 1,000 W
MAX. 1,380 W
NOR. 4.50 A
MAX. 7.40 A
NOR. 950 W
MAX. 1,380 W
NOR. 4.20 A
MAX. 7.40 A
MW182H4 NHM0, UHM0 230 V ~ 60 Hz
NOR. 1,555 W
MAX. 2,100 W
NOR. 6.90 A
MAX. 11.00 A
NOR. 1,465 W
MAX. 2,100 W
NOR. 6.50 A
MAX. 11.00 A
MW242H4 NHM0, UHM0 230 V ~ 60 Hz
NOR. 2,015 W
MAX. 2,700 W
NOR. 9.10 A
MAX. 15.00 A
NOR. 2,015 W
MAX. 2,700 W
NOR. 9.10 A
MAX. 15.00 A
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