Bedienungsanleitung REMKO ML 351 (Seite 14 von 28) (Englisch)

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Troubleshooting and customer service

The equipment and components are manufactured using state-of-the-art production methods and tested several

times to verify their correct function. If malfunctions should occur, please check the functions as detailed in the

list below. Please inform your dealer if the unit is still not working correctly after all the functional checks have

been performed!

Fault possible cause Checks Remedial measures

The unit does not start or

switches itself off

Power outage, undervoltage,

defective mains fuse / main circuit

breaker switched off

Are all electrical installations

functioning correctly?

Check the voltage and if necessary

wait for it to come back on

Damaged mains cable

Are all electrical installations

functioning correctly?

Repair by specialist

Waiting time after switch-on too

short

Have approx. 5 minutes

elapsed since the restart?

Schedule longer waiting times

Temperate outside operating

temperature range

Are the fans in the indoor unit

and outside component working

correctly?

Take into account the temperature

range for the indoor unit and

outside component

Overvoltages caused by thunder

storms

Has there recently been lightning?

Switch off the mains protection

and switch it back on /

have it checked by a specialist

Fault in external condensation

pump

Did the pump shut down due to

a fault?

Check and if necessary clean the

pump

The unit does not respond to

the remote control.

Transmission distance too far /

receiver affected by interference

Does the indoor unit beep when

pressing a button?

Reduce the distance to less than 6

m or change position

Defective remote control

Is the unit running in manual

mode?

Replace the remote control

Receiver&transmitter unit exposed

to excessive solar radiation

Does it function correctly in the

shade?

Place the receiver&transmitter unit

in the shade

Electromagnetic ﬁelds are

interfering with transmission

Does it function when

switching off possible sources of

interference?

Signal is not transmitted

when interference sources are

operational

Button in remote control jammed /

two buttons pressed at same time

Does the “Send” symbol appear

on the display?

Release the button / only press

one button

Batteries in remote control are ﬂat

Have new batteries been inserted?

Is the display incomplete?

Insert new batteries

The unit is running but only

provides reduced cooling or

heating performance

Filter is unclean / air inlet / outlet

blocked by foreign items

Have the ﬁlters been cleaned? Clean the ﬁlters

Doors and windows open.

Heating/cooling output increases

Have modiﬁcations been made to

the building?

Close windows and doors / install

additional units

Neither cooling nor heating mode

has been set

Is the cooling/heating symbol

shown on the display?

Correct the settings for the unit

Fins on outdoor component

blocked by foreign items

Is the fan on the outdoor

component running ? Are the ﬁns

unobstructed?

Check the fan or winter controller,

reduce the air resistance

Leaking refrigerant circuit

Are there signs of frost on the ﬁns

of the indoor unit?

Repair by specialist

Condensation is leaking out of

the unit

Drainage pipe on collection

container clogged / damaged

Can the condensation drain off

without any obstruction?

Clean the drainage pipe and

collection container

Faulty external condensation

pump or ﬂoat

Is the condensation tray full and

the pump running?

Call out a specialist to replace the

pump

Condensation has not drained

away and has collected in the

condensation pipe

Is there a steady fall on the

condensation pipe? Check there is

no blockage in the pipe.

The condensation pipe must have a

fall. If necessary, clean the pipe

Condensation does not drain off

Are the condensation pipes

unblocked and is there a steady fall?

Are the condensation pump and

ﬂoat switch functioning correctly?

The condensation pipe must have a

fall. If necessary, clean the pipe.

A faulty condensation pump and

ﬂoat switch should be replaced.

Malfunction

REMKO ML

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