Bedienungsanleitung Inventor U5MRT32 (Seite 12 von 60) (Deutsch, Englisch)

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Problem Possible Causes

Dust is emitted from

either the indoor or

outdoor unit

The unit may accumulate dust during extended periods of non-use, which

will be emitted when the unit is turned on. This can be mitigated by covering

the unit during long periods of inactivity.

The unit emits a

bad odor

The unit may absorb odors from the environment (such as furniture, cooking,

cigarettes, etc.) which will be emitted during operations.

The unit’s filters have become moldy and should be cleaned.

The fan of the

outdoor unit

does not operate

During operation, the fan speed is controlled to optimize product operation.

Troubleshooting Tips

When troubles occur, please check the following points before contacting a repair company.

Problem Possible Causes Solution

The unit

is not

working

Power failure Wait for the power to be restored

The power switch is off Turn on the power

The fuse is burned out Replace the fuse

Remote control batteries are dead Replace the remote control batteries

The unit’s 3-minute protection has

been activated Wait three minutes after restarting the unit

Poor cooling

performance

Temperature setting may be higher

than the ambient room temperature Lower the temperature setting

The heat exchanger on the indoor

or outdoor unit is dirty Clean the affected heat exchanger

The air filter is dirty Remove the filter and clean it according

to instructions

The air inlet or outlet of either unit

is blocked

Turn the unit off, remove the obstruction

and turn it back on

Doors and windows are open Make sure that all doors and windows are

closed while operating the unit

Excessive heat is generated by

sunlight

Close windows and curtains during

periods of high heat or bright sunshine

Low refrigerant due to leak or

long-term use Check for leaks, re-seal if necessary and

top off refrigerant

The unit

starts and

stops

frequently

There’s too much or too little

refrigerant in the system

Check for leaks and recharge the system

with refrigerant

There is air, incompressible gas or

foreign material in the refrigeration

system.

Evacuate and recharge the system with

refrigerant

System circuit is blocked Determine which circuit is blocked and replace

the malfunctioning piece of equipment

The compressor is broken Replace the compressor

The voltage is too high or too low Install a manostat to regulate the voltage

Poor heating

performance

The outdoor temperature is lower

than 7°C (44.5°F)

Check for leaks and recharge the system

with refrigerant

Cold air is entering through doors

and windows Make sure that all doors and windows are

closed during use

Low refrigerant due to leak or

long-term use

Check for leaks, re-seal if necessary and

top off refrigerant

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Inventor U5MRT32 Seite 12

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