Troubleshooting, English – Panasonic CU-E12GKE User Manual

Page 7

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7

ENGLISH

ENGLISH

ENGLISH

ENGLISH

Symptom

Cause

Mist emerges from indoor unit.

Condensation effect due to cooling process.

Water fl owing sound during operations.

Refrigerant fl ow inside the unit.

The room has a peculiar odour.

This may due to damp smell emitted by the wall, carpet, furniture or clothing.

Indoor fan stops occasionally during
automatic fan speed setting.

This helps to remove the surrounding odours.

Operation is delayed a few minutes after
restart.

The delay is a protection to the unit’s compressor.

Outdoor unit emits water/steam.

Condensation or evaporation occurs on pipes.

Timer indicator is always on.

The timer setting repeats daily once set.

Power indicator blinks during operation
and the indoor fan is stopped.

The unit is in defrost mode, and the melted frost is drained from the outdoor unit.

Indoor fan stops occasionally during
heating operation.

To avoid unintended cooling effect.

Power indicator blinks before the unit is
switched on.

This is a preliminary step in preparation for the operation when the ON timer has been set.

TURN OFF POWER SUPPLY and CALL Authorized Distributor
under the following conditions:
• Abnormal noise during operation.
• Water/foreign particles have entered the remote control.
• Water leaks from Indoor unit.
• Circuit breaker switches off frequently.
• Power cord becomes unnaturally warm.
• Switches or buttons are not functioning properly.

NON SERVICEABLE CRITERIAS

TROUBLESHOOTING

• Activate heat mode for 2~3 hours to thoroughly dry the unit.
• Turn off the power supply.
• Remove the remote control batteries.

FOR EXTENDED NON-USE

• Checking of remote control batteries.
• No obstruction at air inlet and air outlet vents.
• After 15 minutes of operation, it is normal to have the following

temperature difference between air inlet and air outlet vents:

Cooling:

≥ 8°C

Heating:

≥ 14°C

SEASONAL INSPECTION AFTER EXTENDED

NON-USE

The following symptoms do not indicate malfunction.

Symptom

Check

Heating/Cooling operation is not working
effi ciently.

Set the temperature correctly.

Close all doors and windows.

Clean or replace the fi lters.

Clear any obstruction at the air inlet and air outlet vents.

Noisy during operation.

Check if the unit has been installed at an incline.

Close the front panel properly.

Remote control does not work.

Insert the batteries correctly.

Replace weak batteries.

The unit does not work.

Check if the circuit breaker is tripped.

Check if timers have been set.

Patrol sensor or e-ion indicator on the
indoor unit is blinking.

Press

or

twice. If the patrol sensor or e-ion indicator still blinking, please consult

your nearest dealer.

The unit stops and the timer indicator
blinks.

AC

RC

RESET

SET CHECK CLOCK

TIMER

ON

SET

OFF

CANCEL

1

3

2

Press for 5 seconds.

Press until you hear

beep sound, then jot
down the error code.

Press for 5 seconds

to quit checking.

Turn the unit off and reveal the error code to your nearest dealer.

Note:

• The unit may be operable (with 4 beeps) on a limited basis, depending on the error.

Check the following before calling for servicing.

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