Bedienungsanleitung Midea MISSION Serie (Seite 8 von 8) (Englisch)

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TROUBLESHOOTING TIPS

Troubleshooting guide

If the problem persists even if you perform these checks or diagnostics, immediately stop operation

and contact the authorized service center. Be sure to inform them of the detailed malfunctions and

unit model number.

DO NOT ATTEMPT TO CORRECT THESE ITEMS YOURSELF!

CONTACT A AUTHORIZED SERVICE PROVIDER!

1414

Before you call for or request servicing, troubleshoot a problem by performing following checks:

In the case of ANY of the following, turn off the unit immediately!

Unit will not operate

Poor cooling or

heating performance

Indicator lamps

continue flashing

Error code appears

in the indoor unit,

such as: E0,E1,E2....

P1,P2,P3.....or F1, F2,

F3.....

-- Is there a power failure?

-- Has a switch been turned off, a circuit breaker tripped or a fuse blown?

-- Power cord is damaged or abnormally warm.

-- Burning odous are smelled.

-- Loud or abnormal sounds are heard.

-- A power fuse blows or a circuit breaker trips frequently.

-- Water or other objects fall into or out of the unit.

-- Is the timer operating?

-- Are the batteries used in the remote controller exhausted?

-- Are the batteries used in the remote controller loaded properly?

-- Are the air filters dirty?

-- Is air flow unrestricted in & out of indoor & outdoor units?

-- Are the temperature and mode settings correct?

-- Are the windows or doors left opened?

-- Is fan speed on high and louvers allowing maximum flow?

-- Is direct or strong sunlight shinning into the room in cooling operation?

-- Is the SILENCE function is activated? Under SILENCE operation,

noise reduction is prioritized and the air-conditioning performance may

become lower.

-- The unit may stop operation or continue to run in a safety condition

(depending on models). Waiting for about 10 minutes, the fault may be

recovered automatically, if not, disconnect the power and then connect it

in again. If the problem still exists, disconnect the power and contact the

nearest customer service center.

-- Are there other heating apparatus or computers operating, or too many

people in the room in cooling operation?

Symptom

Diagnostic

CAUTION

The following events may occur during normal operation, and may not indicate malfunction.

Troubleshooting tips

Operation is delayed

after restart

Fan speed changes-

off, very slow and

then normal

Heating operation

stops suddenly and

defrost-light blinks

Mist coming out of

the indoor unit

Low volume sounds

are emitted by the

air conditioner

Dust discharges from

the unit

Emits a peculiar

odour

Changes to fan only

while cooling or

heating mode

Operation is erratic,

unpredictable or

unresponsive

To prevent blowout of the fuse, the compressor will not operate while the

protection circuit is working for about 3 minutes after sudden OFF--ON

operation of the power supply.

In HEAT mode, the indoor unit temporarily stops for maximum of 10

minutes to perform the automatic defrosting operation.

May occur when air conditioner is used for the first time or has not been

used for a long time.

Various smells generated from interior textile, furniture, or cigarette smoke

absorbed into the air conditioner may be emitted. If not the case call your

suitable contractor.

Room temperature reaches the temperature setting of the remote control.

If not the case call your suitable contractor.

Interference from cell phone towers and remote boosters may cause the

unit to malfunction

Disconnect the power and then re-connect.

Press the ON/OFF button on the remote controller to restart operation.

Automatically happens in heating mode :

--prevents cold air blowing onto occupants when the heating operation is

start,

--perform automatic defrosting operation,

--perform low temperature heating operation

NOTE: If the problem is not resolved, please contact a local dealer or the nearest customer

service center. Be sure to inform them of the detailed malfunctions and unit model number.

In COOL mode, a mist generated by condensation formed with sudden

cooling process may be emitted.

Hissing sound-- during operation or immediately after stopping the air

conditioner, refrigerant flowing sound may be head.

Squeaking sound-- normal expansion and contraction of plastic and metal

parts caused by temperature change during the operation.

Rushing air-- when louver resets its position.

Mist may generate due to moisture generated from defrosting process

when the air conditioner restarts in HEAT mode operation after defrosting.

Symptom

Cause

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