Bedienungsanleitung Panasonic U-16ME4 (Seite 9 von 76) (Deutsch, Englisch, Holländisch, Französisch, Italienisch, Portugiesisch, Spanisch)

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U-5~18MX4 + U-8~16ME4✽M + U-8~16ME4 + U-4~6ML5

Urban Multi air conditioner

4PW40727-1A

Operation manual

Symptom 12: The display shows " ".

■ This is the case immediately after the main power supply switch

is turned on and means that the remote controller is in normal

condition. This continues for one minute.

Symptom 13: The compressor in the outdoor unit does not stop after a

short heating operation

■ This is to prevent oil and refrigerant from remaining in the

compressor. The unit will stop after 5 to 10 minutes.

Symptom 14: The inside of an outdoor unit is warm even when the unit

has stopped

■ This is because the crankcase heater is warming the

compressor so that the compressor can start smoothly.

Symptom 15: Hot air can be felt when the indoor unit is stopped

■ Several different indoor units are being run on the same system.

When another unit is running, some refrigerant will still ﬂow

through the unit.

11. TROUBLESHOOTING

If one of the following malfunctions occur, take the measures shown

below and contact your dealer.

The system must be repaired by a qualiﬁed service person.

■ 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.

Measure: Turn off the main power switch.

■ If water leaks from the unit

Measure: Stop the operation.

■ The operation switch does not work well.

Measure: Turn off the power.

■ If the display , the unit number and the operation lamp

ﬂash and the malfunction code appears. (See ﬁgure 7)

Measure: Notify your dealer 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.

1 If the system does not operate at all

■ Check if there is no power failure.

Wait until power is restored. If power failure occurs during

operation, the system automatically restarts immediately after

the power supply is recovered.

■ Check if no fuse has blown or breaker has worked. Change the

fuse or reset the breaker if necessary.

2 If the system goes into fan only operation, but as soon as it

goes into heating or cooling operation, the system stops

■ Check if air inlet or outlet of outdoor or indoor unit is not blocked

by obstacles. Remove any obstacle and make it well-ventilated.

■ Check if the remote controller display shows " " (time to

clean the air ﬁlter). (Refer to "Maintenance" in the indoor unit

manual.)

3 The system operates but cooling or heating is insufﬁcient

■ Check if air inlet or outlet of outdoor or indoor unit is not blocked

by obstacles.

■ Remove any obstacle and make it well-ventilated.

■ Check if the air ﬁlter is not clogged. (Refer to "Maintenance" in

the indoor unit manual.)

■ Check the temperature setting.

■ Check the fan speed setting on your remote controller.

■ Check for open doors or windows. Shut doors and windows to

prevent wind from coming in.

■ Check if there are too many occupants in the room during

cooling operation

■ Check if the heat source of the room is excessive.

■ Check if direct sunlight enters the room. Use curtains or blinds.

■ Check if the air ﬂow angle is proper.

If after checking all above items, it is impossible to ﬁx the problem

yourself, contact your dealer and state the symptoms, the complete

model name of the air conditioner (with manufacturing number if

possible) and the installation date (possibly listed on the warranty card).

12. AFTER-SALES SERVICE AND WARRANTY

Warranty period

■ This product includes a warranty card that was ﬁlled out by the

dealer at the time of installation. The completed card was

checked by the customer and stored carefully.

■ If repairs to the air conditioner are necessary within the warranty

period, contact your dealer and keep the warranty card at hand.

12.1. After-sales service

■ Recommendations for maintenance and inspection

Since dust collects when using the unit for several years,

performance of the unit will deteriorate to some extent.

As taking apart and cleaning interiors of units requires technical

expertise and in order to ensure the best possible maintenance

of your units, we recommend to enter into a maintenance and

inspection contract on top of normal maintenance activities.

Our network of dealers has access to a permanent stock of

essential components in order to keep your air conditioner in

operation as long as possible.

Contact your dealer for more information.

■ When asking your dealer for an intervention, always state:

• the complete model name of the air conditioner

• the manufacturing number (stated on the nameplate of the

unit)

• the installation date

• the symptoms or malfunction, and details of the defect.

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.

1 Inspection display

2 Indoor unit number in which a malfunction occurs

3 Operation lamp

4 Malfunction code

TEST

4PW40727-1A Page 7 Thursday, October 11, 2007 11:02 AM

Panasonic U-16ME4 Seite 9

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