User Manual

Troubleshooting
Refer to the following chart if the air conditioner operates abnormally. This may save
time and unnecessary expenses.
PROBLEM SOLUTION
The air conditioner
does not work at all.
• Checkpowerstatusandthenoperatetheairconditioneragain.
• Pluginorswitchonthecircuitbreakerandthenoperatetheair
conditioner again.
• EnsureIsolatorisswitchon.
• CheckifyouhavesettheOTimer.Operatetheairconditioner
again by pressing the Power button.
The temperature
adjustment is not
working.
• CheckifyouhaveselectedFan/Fastmode.Inthesemodes,desired
temperature is set to auto and you cannot adjust the temperature.
Cool/Warm air does
not come out of the
air conditioner.
• Checkifthesettemperatureishigher(duringCoolmode)/
lower(during Heat mode) than the current temperature. Press the
Temp + or - button on the remote controller to change the set
temperature.
• CheckiftheAirlterisblockedbydirt.Ifthereisalotofduston
the Air lter, cooling(heating) performance may decrease. Clean
them frequently.
• Checkiftheoutdoorunitiscoveredorinstalledneartheobstacle.
Take the cover o and take the obstacle away.
• Checkiftheairconditionerisoperatingindefrostmode.Whenthe
ice formed in winter or the outdoor temperature is too low, the
air conditioner operates in defrost mode automatically. In defrost
mode, indoor fan stops and warm air does not come out.
• Ifthedoorsorwindowsareopen,itmaycausebadcooling
(heating) performance.
Close the doors and windows.
• Checkiftheairconditionerhasjustbeenturnedonafterstopping
cooling or heating operation. In this case, just a fan will run to
protect the outdoor unit compressor.
• Checkifthepipelengthistoolong.Whenthepipelengthexceeds
maximum allowable pipe length, cooling (heating) performance
may decrease.
Air ow adjustment
is not working.
• Checkifyouhaveselected mode. In cool mode, you
cannot adjust the air ow direction. (If the
mode is
operating in Heat mode, you can adjust the air ow direction.)
English-28
A3050 EU_IB_DB68-04211A_HP_EN 228.indd 28 2014-2-28 9:25:14