7 Troubleshooting
Operation manual
6
FNA25~60A2VEB
Split system air conditioners
4P456953-1 – 2017.06
6.2 Cleaning the air filter, suction
grille, air outlet and outside panels
6.2.1 To clean the drain pan
Clean the drain pan so that it does NOT become clogged and dusty.
Cover the drain pan to prevent dust from entering it.
6.2.2 To clean the air outlet and outside panels
WARNING
Do NOT let the indoor unit get wet. Possible
consequence: Electric shock or fire.
NOTICE
▪ Do NOT use gasoline, benzene, thinner polishing
powder or liquid insecticide. Possible consequence:
Discoloration and deformation.
▪ Do NOT use water or air of 50°C or higher. Possible
consequence: Discoloration and deformation.
▪ Do NOT scrub firmly when washing the blade with
water. Possible consequence: The surface sealing
peels off.
Clean with a soft cloth. If it is difficult to remove stains, use water or
neutral detergent.
6.2.3 To clean the air filter
When to clean the air filter:
▪ Rule of thumb: Clean every 6 months. If the air in the room is
extremely contaminated, increase the cleaning frequency.
▪ Depending on the settings, the user interface can display the
TIME TO CLEAN AIR FILTER notification. Clean the air filter
when the notification is displayed.
▪ If the dirt becomes impossible to clean, change the air filter
(=optional equipment).
How to clean the air filter:
1 Turn OFF the power.
2 Remove the air filter. Push the hooks and pull the filter as
shown in the illustration below. (2 hooks for 25 and 35 type or 3
hooks for 50 and 60 type)
front suction bottom suction
3 Clean the air filter. Use a vacuum cleaner or wash with water.
If the air filter is very dirty, use a soft brush and neutral
detergent.
4 Dry the air filter in the shadow.
5 Reattach the air filter. Hook the filter behind the flap and
attach the filter to the main unit while pushing down the hooks.
front suction bottom suction
6 Turn ON the power.
7 Press the FILTER SIGN RESET button.
Result: The TIME TO CLEAN AIR FILTER notification disappears
from the user interface.
7 Troubleshooting
If one of the following malfunctions occur, take the measures shown
below and contact your dealer.
WARNING
Stop operation and shut off the power if anything
unusual occurs (burning smells etc.).
Leaving the unit running under such circumstances may
cause breakage, electric shock or fire. Contact your dealer.
WARNING
In case the unit is equipped with a refrigerant leakage
sensor
1
, turn off the unit using the ON/OFF button on the
user interface only.
The system must be repaired by a qualified service person:
Malfunction Measure
If a safety device such as a fuse, a
breaker or an earth leakage breaker
frequently actuates or the ON/OFF
switch does not function properly.
Turn off the main power
switch. In case of R32
refrigerant, turn off the
power using the ON/OFF
button on the user
interface only and contact
your dealer.
If water leaks from the unit. Stop operation.
The operation switch does not function
properly..
Turn off the main power
switch. In case of R32
refrigerant, turn off the
power using the ON/OFF
button on the user
interface only and contact
your dealer.
(1)
Only for units using R32 refrigerant. Refer to the outdoor unit specifications for the type of refrigerant to be used.