Daikin FTKS20D3VMW Service Manual page 234

SiENBE12-713
10.Trouble shooting
I. If one of the following malfunctions occurs, take the
measures shown below and contact your Daikin dealer.
The system must be repaired by a qualified service person.
WARNING
When the air conditioner is in abnormal conditions
(smell of something burning, etc.), unplug the power
cord from the outlet, and contact your dealer
Continued operation under such circumstances may result
in a failure, electric shock, and fire.
• If a safety device such as a fuse, a breaker, or an earth
leakage breaker frequently actuates, or ON/OFF switch
does not properly work.
Measure: Turn off the main power switch
• If water leaks from unit.
Measure: Stop the operation.
• if the display " " (INSPECTION), "UNIT No.", and the
OPERATION lamp flash and the "MALFUNCTION CODE"
appears.
БЛОК №
INSPECTION
display
MALFUNCTION CODE
Measure: Notify and inform the model name and what the
malfunction code indicates to your Daikin dealer.
II. If the system does not properly operate except for the
above mentioned case, and none of the above
mentioned malfunctions is evident, investigate the
system according to the following procedures.
1. If the system does not operate at all.
• Check if there is a power failure.
Wait until power is restored. If power failure occurs during
operation, the system automatically restarts immediately
after the power supply recovers.
• Check if the fuse has blown or breaker has worked.
Change the fuse or set the breaker.
2. If the system stops operating after operating the
system.
• Check if the air inlet or outlet of outdoor or indoor unit is
blocked by obstacles.
Remove the obstacle and make it well-ventilated.
• Check if the air filter is clogged.
Ask a qualified service person to clean the air filters (Refer
to MAINTENANCE).
3. The system operates but it does not sufficiently cool
or heat.
• If the air inlet or outlet of the indoor or the outdoor unit is
System Configuration
OPERATION lamp
C
L H
INDOOR UNIT No. in which
a malfunction occurs
blocked with obstacles.
Remove the obstacle and make it well-ventilated.
• If the air filter is clogged.
Ask a qualified service person to clean the air filters (Refer
to MAINTENANCE).
• If the set temperature is not proper (Refer to
ADJUSTMENT).
• If the FAN SPEED button is set to LOW SPEED (Refer to
ADJUSTMENT).
• If the air flow angle is not proper (Refer to AIR FLOW
DIRECTION ADJUST).
• If the doors or the windows are open.
Shut the doors or windows to prevent wind from coming in.
• If direct sunlight enters the room (when cooling).
Use curtains or blinds.
• When there are too many inhabitants in the room (when
cooling).
Cooling effect decreases if heat gain of the room is too
large.
• If the heat source of the room is excessive (when cooling).
Cooling effect decreases if heat gain of the room is too
large.
Instruction
223