DOWNLOAD Panasonic CS-A28BKP5 / CU-A28BKP5 Service Manual ↓ Size: 13.93 MB | Pages: 77 in PDF or view online for FREE

Model
CS-A28BKP5 CU-A28BKP5
Pages
77
Size
13.93 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / ROOM AIR CONDITIONER
File
cs-a28bkp5-cu-a28bkp5.pdf
Date

Panasonic CS-A28BKP5 / CU-A28BKP5 Service Manual ▷ View online

Regular care and maintenance will extend the life of the air conditioner and prevent wastage of electricity.
Before performing any maintenance procedure, be sure to switch off the main power supply.
   Once every 2 weeks is recommended.
Clean the air filters.
To remove the dust adhering to the filters,
either use a vacuum cleaner, or wash them in
water and dry in the shade.
Re-insert the filters correctly at the left and right,
with the side marked [FRONT] facing forward.
Purchase replacement filters from your air con-
ditioner dealer if the air filters become damage.
Air Filter No. CWD4209540 (right)
Cleaning the air conditioner and air filters
Better Care and Maintenance
Do not use water or volatile liquids.
Do not make air conditioner wet, as there is the danger that it could cause
electric shocks.
Be sure not to apply water when cleaning or at any other time.
Using water above 40°C could cause deformation and/or discolouration.
Volatile liquids such as thinner or benzene may damage the air condi-
tioner.
Caution
Clean the air conditioner.
Wipe gently with a soft, dry cloth.
37
CS-A28
BKP5
/CU-A28
BKP5
CWD4209550 (left)
3
Filters
Is the discharge air
cold (warm)?
Operation is normal if, 15 min-
utes after the start of operation,
the temperature difference be-
tween the air intake vent and
outlet vent is 8°C or above for
cooling and 14°C or above for
heating.
Are the air outlet
vents and air intake
vents obstructed?
Is the drain hose
cracked or crushed?
Are the remote
control batteries in
good condition?
If they are, cooling
performance will drop and
cause problems.
If display is faint or
no display is visible,
the batteries should
be replaced.
If  it is, leaks will
result.
Is cool (warm) air
coming out?
Remove the filters
from the filter frame.
Remove the air filters.
Remove the batteries
from the remote control.
1
3
1
For air conditioners with
a power plug, stop opera-
tion by remote control and
pull out the power plug.
Note:
 If the unit is not off by
remote control, the unit
will operate when you
plug in (because
of Auto-restart
Control is provided).
Air filter
In order to dry out the
internal mechanisms
Operate the air condi-
tioner for 2 to 3 hours.
■ Type
 
of operation: Cooling.
■ Temperature setting: 30°C.
When not using the air conditioner for a long period
Pre-season inspection 
(The earlier the better)
Replacement of air purifying filters
<Note>
■ Solar Refreshing Deodorizing Filter
Used to remove unpleasant odour and deodorize the air in the room.
Reusable.
Vacuum, place under direct sunlight for 6 hours and fit it back in place.
(Recommended : every 6 months)
■ Catechin Air Purifying Filter
The filter is coated with catechin to prevent growth of bacteria and viruses.
Reusable.
Vacuum and fit it back in place
(Recommended : every 6 months)
■ Recommended to change these filters every 3 years.
Do not reuse damaged filters.
Consult the nearest authorized dealer to purchase a new filter.
Catechin Air Purifying Filter No.: CZ-SF71P
Solar Refreshing Deodorizing Filter No.: CZ-SFD71P
If you operate the air conditioner with dirty filters:-
– Air is not purified
– Cooling capacity decreases
– Foul odour is emitted
! Caution
Be careful not to
hurt your hands on
metal parts.
2
Catechin Air
Purifying Filter
Solar Refreshing
Deodorizing Filter
Remove the air purify-
ing filters.
2
38
Normal operation
?
z
z
z
During Soft Dry Mode
Operation, the air condi-
tioner stops.
Q
 Is it okay?
A
 This is the answer.
Air conditioner has been re-
started, but does not
operate for 3 minutes.
During Automatic Airflow
Volume setting, indoor fan
stops occasionally.
Operation stops for about
12 minutes during heating.
(The operation lamp
blinks.)
It seems that fog is coming
out from the air
conditioner.
Airflow does not begin
immediately during Heat-
ing Operation.
The room has a peculiar
odour.
This is to protect the air conditioner. Wait until
the air conditioner begins operating.
Soft Dry Mode Operation is a very gentle cooling
operation consisting primarily of dehumidifying.
The air conditioner may stop for approximately 6
minutes in order to prevent overcooling.
If the room temperature rises again, the opera-
tion will recommence.
If the airflow begins before its temperature be-
come warm, it will cause an undesired cooling
effect. In order to prevent this, the airflow will not
begin until it is sufficiently warm.
(The operation lamp will blink until the airflow
begins.)
This may be a damp smell exuded by the walls,
carpet, furniture or clothing in the room.
Condensation occurs when the airflow from the
air conditioner cools the room air.
This is to remove the smell exuded by the
surroundings.
This is the sound of refrigerant flowing inside the
air conditioner unit.
This is the sound of reversing the freon flow in-
side the unit at the starting and finishing the de-
frosting during Heating operation.
This is to melt the frost which has accumulated on the out-
door unit (Defrosting Operation). This will take no longer than
about 12 minutes, so wait for operation. (Frost accumulates
on the outdoor unit when the outdoor temperature is low and
the humidity is high.) Water comes out from the outdoor unit.
Stop for 12 minutes.
Sight
Blinks
A sound like water flowing
can be heard. A noise that
sounds like the com-
pressed air releasing into
atmosphere
Troubleshooting
39
CS-A28
BKP5
/CU-A28
BKP5
Abnormal operation
The air conditioner
does not operate.
The air conditioner
does not cool effectively.
Air conditioner operation
noise too loud.
Has the temperature been set incorrectly?
Are the filters dirty?
Are the intake or outlet vents of the outdoor
unit obstructed?
Are all windows and doors closed?
Is the installation work slanted?
Is the front grille closed properly?
Call the dealer immediately
Abnormal noise is heard during
operation.
Water or foreign material
gets into the remote con-
trol by mistake.
Water leaks from the indoor unit.
If the following conditions occur, immediately turn the power plug or turn off the power breaker.
Switches or buttons do not
operate properly.
The circuit breaker switch-
es off frequently.
Power supply cord and plug
become unusually warm.
Has the circuit breaker been tripped?
Has the power plug been removed from the
wall outlet?
Is the Timer being used correctly?
Has the  
REMOTE CONTROLLER B
 
 A
switch been set to “B”?
40
CS-A28
BKP5
/CU-A28
BKP5
Page of 77
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