Maintenance Before A Long Stop Period; Maintenance After A Long Stop Period; Troubleshooting; Symptoms That Are Not System Malfunctions - Daikin FBA35A2VEB Operation Manual

6 Troubleshooting

7 Turn ON the power.
8 Press the FILTER SIGN RESET button.
Result: The TIME TO CLEAN AIR FILTER notification disappears
from the user interface.
5.4 Maintenance before a long stop
period
E.g., at the end of the season.
▪ Let the indoor units run in fan only operation for about half a day in
order to dry the interior of the units.
▪ Turn off the power. The user interface display disappears. When
the main power is turned on, the air conditioner will use some
power, even if it is not operating.
▪ Clean air filters and casings of indoor units. Contact your installer
or maintenance person to clean air filters and casings of the
indoor unit. Maintenance tips and procedures for cleaning are
provided in the installation/operation manuals of dedicated indoor
units. Make sure to install cleaned air filters back in the same
position.
5.5 Maintenance after a long stop
period
E.g., at the beginning of the season.
▪ Check and remove everything that might be blocking inlet and
outlet vents of indoor units and outdoor units.
▪ Check if the earth is connected properly.
▪ Check if there is somewhere a broken wire. Contact your dealer in
case of problems.
▪ Clean air filters and casings of indoor units. Contact your installer
or maintenance person to clean air filters and casings of the
indoor unit. Maintenance tips and procedures for cleaning are
provided in the installation/operation manuals of dedicated indoor
units. Make sure to install cleaned air filters back in the same
position.
▪ Turn on the power at least 6 hours before operating the unit in
order to ensure smoother operation. As soon as the power is
turned on, the user interface display appears.
6 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.
The system must be repaired by a qualified service person:
If the system does not properly operate except for the above
mentioned cases and none of the above mentioned malfunctions is
evident, investigate the system according to the following
procedures.
Operation manual
6
Malfunction
If the system does not ▪ Check if there is no power failure. Wait
operate at all. until power is restored. If power failure
occurs during operation, the system
automatically restarts immediately after
power is restored.
▪ Check if no fuse has blown or breaker is
activated. Change the fuse or reset the
breaker if necessary.
The system stops ▪ Check if air inlet or outlet of outdoor or
immediately after indoor unit is not blocked by obstacles.
starting operation. Remove any obstacles and make sure
the air can flow freely.
▪ Check if the air filter is clogged. Contact
your dealer to clean the air filter.
The system operates ▪ Check if air inlet or outlet of outdoor or
but cooling or heating indoor unit is not blocked by obstacles.
is insufficient. Remove any obstacles and make sure
the air can flow freely.
▪ Check if the air filter is clogged. Contact
your dealer to clean the air filter (refer to
"Maintenance" in the indoor unit manual).
▪ Check the temperature setting. Refer to
the manual of the user interface.
▪ Check if the fan speed setting is set to
low speed. Refer to the manual of the
user interface.
▪ Check if the air flow angle is proper.
Refer to the manual of the user interface.
▪ Check for open doors or windows. Close
doors and windows to prevent wind from
coming in.
▪ Check if direct sunlight enters the room.
Use curtains or blinds.
▪ Check if there are too many occupants in
the room during cooling operation. Check
if the heat source of the room is
excessive.
▪ If the heat source of the room is
excessive (when cooling). Cooling effect
decreases if heat gain of the room is too
large.
If after checking all above items, it is impossible to fix the problem
yourself, contact your installer and state the symptoms, the complete
model name of the unit (with manufacturing number if possible) and
the installation date (possibly listed on the warranty card).
6.1 Symptoms that are NOT system
malfunctions
The following symptoms are NOT system malfunctions:
6.1.1

Symptom: The system does not operate

▪ The air conditioner does not start immediately after the ON/OFF
button on the user interface is pressed. If the operation lamp
lights, the air conditioner is in normal condition. It does not restart
immediately because one of its safety devices actuates to prevent
the air conditioner from being overloaded. The air conditioner will
turn on again automatically after 3 minutes.
▪ The air conditioner does not start immediately after the power
supply is turned on. Wait 1 minute until the microcomputer is
prepared for operation.
Measure
FBA35~140A2VEB
Split system air conditioners
4P456964-1 – 2017.04