15
TROUBLE SHOOTING
Case Explanation
Theindoorunitgivesoutodour. This happens when smells of the room, furniture, or cigarettes are
absorbed into the unit and discharged with the airow.
(If this happens, we recommend you to have the indoor unit washed by a
technician. Consult the service shop where you bought the air conditioner.)
Theoutdoorfanrotateswhiletheair
conditioner is not in operation.
After operation is stopped:
•
The outdoor fan continues rotating for another 60 seconds for system protection.
While the air conditioner is not in operation:
• When the outdoor temperature is very high, the outdoor fan starts
rotating for system protection.
The operation stopped suddenly.
(operationlampison)
For system protection, the air conditioner may stop operating on a sudden
large voltage uctuation.
It automatically resumes operation in about 3 minutes.
“ ”isdisplayedontheremote
controller,andthedisplayedcontentsash
forseveralsecondswhenanoperation
button is pressed.
Whenthreeshort“beep”soundsareissued
inthecaseofwirelessremotecontroller.
• The air conditioner is controlled by the central equipment.
Flashing of the displayed contents indicates that the remote controller is
invalid for control.
COOLcannotbechangedover.
• Whenthedisplayshows“
”
(changeoverundermastercontrol),
itshowsthatthisisaslaveremote
controller.
Whenalong“beep”soundisissuedin
thecaseofwirelessremotecontroller.
• Refer to page 12.
Theliquidcrystaloftheremote
controllershows“
”immediately
afterthepowersupplyisturnedon.
• This shows that the remote controller is in normal condition.
This continues for one minute.
Thecompressorintheoutdoorunitdoes
not stop after a short heating operation.
• This is to prevent oil and refrigerant from remaining in the compressor.
The unit will stop after 5 to 10 minutes.
Theinsideofanoutdoorunitiswarm
whentheunithasstopped.
•
This is because the crankcase heater is warming the compressor even
while the outdoor unit is stopped so that the compressor can start smoothly.
Whentheairconditionerhasnotbeenused
(thepowerhasbeenoff)foralongtime.
• For protecting the mechanism, supply the power for 6 hours at rst, then
operate the air conditioner.
Warmairexitstheuniteventhoughitisoff.
Youcanfeelhotaircomingoutoftheunit.
• Multiple units are operating on the same system, so if a unit in another
room is operating, some refrigerant will ow through the stopped units, too.
Calltheserviceshopimmediately.
WARNING
When an abnormality (such as a burning smell) occurs, stop operation and turn the breaker OFF.
Continued operation in an abnormal condition may result in troubles, electric shocks or re.
Consult the service shop where you bought the air conditioner.
Do not attempt to repair or modify the air conditioner by yourself.
Incorrect work may result in electric shocks or re.
Consult the service shop where you bought the air conditioner.
If one of the following symptoms takes place, call the service shop immediately.
Thepowercordisabnormallyhotordamaged.
Anabnormalsoundisheardduringoperation.
The safety breaker, a fuse, or the earth leakage breaker cuts off the operation frequently.
Aswitchorabuttonoftenfailstoworkproperly.
Thereisaburningsmell.
Waterleaksfromtheindoorunit.
Turn the breaker
OFF and call the
service shop.
After a power failure
The air conditioner automatically resumes operation in
about 3 minutes. You should just wait for a while.
Lightning
If lightning may strike the neighbouring area, stop
operation and turn the breaker OFF for system protection.
01_EN_3P344160-13U.indd 15 06-Oct-20 2:42:06 PM