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Issue

Possible Causes

The indoor unit 
makes noises

A rushing air sound may occur when the louver resets its 
position.

A squeaking sound may occur after running the unit in HEAT 
mode due to expansion and contraction of the unit’s plastic 
parts.

Both the indoor 
unit and outdoor 
unit make noises

Low hissing sound during operation: This is normal and is 
caused by refrigerant gas flowing through both indoor and 
outdoor units.

Low hissing sound when the system starts, has just stopped 
running, or is defrosting: This noise is normal and is caused by 
the refrigerant gas stopping or changing direction.

Squeaking sound: Normal expansion and contraction of 
plastic and metal parts caused by temperature changes during 
operation can cause squeaking noises.

The outdoor unit 
makes noises

The unit will make different sounds based on its current 
operating mode.

Dust is emitted 
from either the 
indoor or outdoor 
unit

The unit may accumulate dust during extended periods of 
non-use, which will be emitted when the unit is turned on. 
This can be mitigated by covering the unit during long periods 
of inactivity.

The unit emits a 
bad odor

The unit may absorb odors from the environment (such as 
furniture, cooking, cigarettes, etc.) which will be emitted 
during operations.

The unit’s filters have become moldy and should be cleaned.

The fan of the 
outdoor unit does 
not operate

During operation, the fan speed is controlled to optimize 
product operation.

Operation 
is erratic, 
unpredictable, 
or unit is 
unresponsive

Interference from cell phone towers and remote boosters may 
cause the unit to malfunction.
In this case, try the following:

• 

Disconnect the power, then reconnect.

• 

Press ON/OFF button on remote control to restart operation.

NOTE:

 If problem persists, contact a local dealer or your nearest customer service 
center. Provide them with a detailed description of the unit malfunction as 
well as your model number.

 

Tr

oubleshooting

Содержание Mission Series

Страница 1: ...TIONER CS78421 548 754 IMPORTANT NOTE Read this manual carefully before installing or operating your new air conditioning unit Make sure to save this manual for future reference Owner s Manual Mission...

Страница 2: ...Safety Precautions 04 Unit Specifications and Features 06 Table of Contents Owner s Manual 0 1 SAFETY FIRST Manual Operation Without Remote 11 2...

Страница 3: ...d by the equipment manufacturer Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable re...

Страница 4: ...ALLATION WARNINGS Ask an authorized dealer to install this air conditioner Inappropriate installation may cause water leakage electric shock or fire All repairs maintenance and relocation of this unit...

Страница 5: ...air conditioner is used together with burners or other heating devices thoroughly ventilate the room to avoid oxygen deficiency Turn off the air conditioner and unplug the unit if you are not going t...

Страница 6: ...ning some units when freeze protection is turned on some units when fresh feature is turned on some units when ECO feature is activated some units when wireless control feature is activated some units...

Страница 7: ...OOL mode HEAT mode DRY mode COOL mode HEAT mode DRY mode Room Temperature 16 C 32 C 60 F 90 F 0 C 30 C 32 F 86 F 10 C 32 C 50 F 90 F Outdoor Temperature 0 C 50 C 32 F 122 F 15 C 30 C 5 F 86 F 0 C 50 C...

Страница 8: ...Angle Memory some units When turning on your unit the louver will automatically resume its former angle Refrigerant Leakage Detection some units The indoor unit will automatically display EC when it d...

Страница 9: ...OTE ON LOUVER ANGLES When using COOL or DRY mode do not set louver at too vertical an angle for long periods of time This can cause water to condense on the louver blade which will drop on your floor...

Страница 10: ...al 1 C 2 F after another hour When in HEAT mode the unit will decrease the temperature by 1 C 2 F after 1 hour and will decrease an additional 1 C 2 F after another hour Set temperature Saving energy...

Страница 11: ...1 Open the front panel of the indoor unit 2 Locate the MANUAL CONTROL button on the right hand side of the unit 3 Press the MANUAL CONTROL button one time to activate FORCED AUTO mode 4 Press the MAN...

Страница 12: ...also be bad for your health Make sure to clean the filter once every two weeks 1 Lift the front panel of the indoor unit 2 Grip the tab on the end of the filter lift it up thenpull it towards yoursel...

Страница 13: ...n the indoor unit will flash nF This is a reminder to replace your filter After 15 seconds the unit will revert to its previous display To reset the reminder press the LED button on your remote contro...

Страница 14: ...s the unit from overloading The unit cannot be restarted within three minutes of being turned off The unit may change its setting to prevent frost from forming on the unit Once the temperature increas...

Страница 15: ...e Dust is emitted from either the indoor or outdoor unit The unit may accumulate dust during extended periods of non use which will be emitted when the unit is turned on This can be mitigated by cover...

Страница 16: ...her unit is blocked Turn the unit off remove the obstruction and turn it back on Doors and windows are open Make sure that all doors and windows are closed while operating the unit Excessive heat is g...

Страница 17: ...te the voltage Poor heating performance The outdoor temperature is exetremtly low Use auxiliary heating device Cold air is entering through doors and windows Make sure that all doors and windows are c...

Страница 18: ...ions Dispose of the appliance at designated municipal electronic waste collection facility When buying a new appliance the retailer will take back the old appliance free of charge The manufacturer wil...

Страница 19: ...The design and specifications are subject to change without prior notice for product improvement Consult with the sales agency or manufacturer for details CS407U MB R32 GA 16122000004374 20170118...

Страница 20: ...1 80 2 A4 3 4 5...

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