Panasonic cs/cu-yw7mkd [9/44] Troubleshooting
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Panasonic cs/cu-yw7mkd [9/44] Troubleshooting

Panasonic cs/cu-yw7mkd [9/44] Troubleshooting
ENGLISH
9
The following symptoms do not indicate malfunction.
SYMPTOM CAUSE
Mist emerges from indoor unit. ► • Condensationeffectduetocoolingprocess.
Waterowingsoundduringoperation. ► • Refrigerantowinsidetheunit.
The room has a peculiar odour. ► • Thismayduetodampsmellemittedbythewall,carpet,
furniture or clothing.
Indoor fan stops occasionally during automatic fan speed
setting.
► • Thishelpstoremovethesurroundingodours.
Operation is delayed a few minutes after restart. ► • Thedelayisaprotectiontotheunit’scompressor.
Outdoor unit emits water/steam. ► • Condensationorevaporationoccursonpipes.
Cracking sound during operation. ► • Changesoftemperaturecausetheexpansion/contraction
of the unit.
The unit operates automatically when power is resumed
after a power failure.
► • ThisistheAutoRestartfunctionoftheunit.Operationwill
be restarted automatically under the previous operation
mode when power is resumed as the operation is
stopped due to power failure.
• TocanceltheAutoRestartControl,pleaserefertopage8.
Power indicator blinks during heating operation and the
indoor fan is stopped.
► • Theunitisindefrostmode,andthemeltedfrostis
drained from the outdoor unit.
Indoor fan stops occasionally during heating operation. ► • Toavoidunintendedcoolingeffect.
Check the following before calling for servicing.
SYMPTOM CHECK
Cooling/Heatingoperationisnotworkingefciently. ► • Setthetemperaturecorrectly.
• Closealldoorsandwindows.
• Cleanorreplacethelters.
• Clearanyobstructionattheairinletandairoutletvents.
Noisy during operation. ► • Checkiftheunithasbeeninstalledatanincline.
• Closethefrontpanelproperly.
Remotecontroldoesnotwork.
(Display is dim or transmission signal is weak.)
► • Insertthebatteriescorrectly.
• Replaceweakbatteries.
The unit does not work. ► • Checkifthecircuitbreakeristripped.
• Checkiftimershavebeenset.
The unit does not receive the signal from the remote
control.
► • Makesurethereceivernotobstructed.
• Certainuorescentlightsmayinterferewithsignal
transmitter. Please consult authorized dealer.
TROUBLESHOOTING
F567652_EN.indd 9 2010-12-20 11:27:46

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