Bedienungsanleitung Daikin FTXP50L2V1B (Seite 11 von 16) (Englisch)

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7 Troubleshooting

Operation manual

FTXP20~71L2V1B

R32 split series

3P511999-1C – 2018.01

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 properly work.

Turn OFF the main power

switch.

If water leaks from the unit. Stop the operation.

The operation switch does NOT work

well.

Turn OFF the power

supply.

If the user interface display indicates the

unit number, the operation lamp flashes

and the malfunction code appears.

Notify your installer and

report the malfunction

code.

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.

Malfunction Measure

If the system does

NOT operate at all.

▪ Check if there is no power failure. Wait

until power is restored. If a 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.

▪ Check the batteries of the user interface.

The system suddenly

stops operating.

▪ Check if the air inlet or outlet of the

outdoor or indoor unit is NOT blocked by

obstacles. Remove any obstacles and

make sure the air can flow freely.

▪ The air conditioner may stop operating

after sudden large voltage fluctuations to

protect the system. It automatically

resumes operation after about 3minutes.

The system operates,

but cooling or heating

is insufficient.

▪ Check the airflow rate setting. Refer to

"4.3.2Airflow rate"on page5.

▪ Check the temperature setting. Refer to

"4.3.1 To start/stop operation and to set

the temperature"on page5.

▪ Check if the airflow direction setting is

appropriate. Refer to "4.3.3 Airflow

direction"on page6.

▪ Check if the air inlet or outlet of the

outdoor or indoor unit is NOT blocked by

obstacles. Remove any obstacles and

make sure the air can flow freely.

The system operates,

but cooling or heating

is insufficient (air is

NOT blown from the

unit).

▪ The air conditioner may be warming up

for heating operation. Wait for 1 to 4

minutes.

▪ The unit may be in defrost operation.

The system operates,

but cooling or heating

is insufficient (air is

blown from the unit).

▪ Check if the air filters are clogged. Clean

the air filters. See "6 Maintenance and

service"on page8.

▪ Check for open doors or windows. Close

doors and windows to prevent wind from

coming in.

▪ Check if the unit operates in Econo

operation. Refer to "4.3.6 Econo

operation"on page7.

▪ Check if there is any furniture directly

under or next to the indoor unit. Move the

furniture.

Malfunction Measure

An abnormal function

happens during

operation.

The air conditioner may malfunction

because of lightning or radio waves. Turn

the breaker OFF and back ON.

The unit does NOT

receive signals from

the user interface.

▪ Check the batteries of the user interface.

▪ Make sure that the transmitter is NOT

exposed to direct sunlight.

▪ Check if there are any electronic starter

type fluorescent lamps in the room.

Contact your dealer.

The user interface

display is blank.

Replace the batteries of the user interface.

An error code is

displayed on the user

interface.

Consult your local dealer. Refer to

"7.2Solving problems based on error

codes"on page12 for a detailed list of

error codes.

Other electric

appliances start to

operate.

If the user interface signals operate other

electric appliances, move the other

appliances away, and contact your dealer.

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).

7.1 Symptoms that are NOT system

malfunctions

The following symptoms are NOT system malfunctions:

7.1.1 Symptom: A sound like water flowing is

heard

▪ This sound is caused by the refrigerant flowing in the unit.

▪ This sound may be generated when water is flowing away from

the unit during cooling or drying operation.

7.1.2 Symptom: A blowing sound is heard

This sound is generated when the direction of the refrigerant flow is

changed (e.g. when switching from cooling to heating).

7.1.3 Symptom: A ticking sound is heard

This sound is generated when the unit slightly expands or contracts

with changes in temperature.

7.1.4 Symptom: A whistling sound is heard

This sound is generated by the refrigerant flowing during defrost

operation.

7.1.5 Symptom: A clicking sound during

operation or idle time is heard

This sound is generated when the refrigerant control valves or

electrical parts operate.

7.1.6 Symptom: A clapping sound is heard

This sound is generated when an external device sucks air out of the

room (e.g. exhaust fan, extractor hood) while the doors and windows

in the room are closed. Open the doors or windows, or turn off the

device.

7.1.7 Symptom: The units can give off odours

The unit can absorb the smell of rooms, furniture, cigarettes, etc.,

and then emit it again.

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