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10 troubleshooting and customer service, Troubleshooting and customer service, Remko mxw – REMKO MXW 202 User Manual

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10

Troubleshooting and customer service

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

times to verify their correct function. However, if malfunctions should occur, please check the functions as

detailed in the list below. For systems with an indoor unit and outdoor unit, refer to the chapter "Trouble-

shooting and customer service" in both operating manuals. Please inform your dealer if the unit is still not

working correctly after all function checks have been performed!

Operational malfunctions

Malfunction

Possible causes

Checks

Remedial measures

The unit does not

start or switches

itself off.

Another indoor unit is in

heating mode.

Check the mode of the

other indoor units.

Operate all indoor units in

cooling mode or switch

them off.

Power failure, under-

voltage

Does all other electrical

equipment function cor-

rectly?

Check voltage and if nec-

essary wait until turned on

again.

Defective mains fuse /

main switch turned off

Are all lighting circuits func-

tioning correctly?

Replace mains fuse, switch

main switch on

Damaged power supply

Does all other electrical

equipment function cor-

rectly?

Repair by specialist firm

Wait time after switching on

is too short

Does a restart occur after

around 5 minutes?

Schedule longer wait times

Operational temperature

range too low or exceeded

Are the fans in the indoor

unit and outdoor unit

working correctly?

Take into account the tem-

perature range for the

indoor unit and outdoor unit

Electrical surges caused by

thunderstorms

Have there been lightning

strikes in the area recently?

Turn the main fuse off and

turn it on again. Have it

inspected by a specialist

Malfunction of the external

condensate 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 key?

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 or transmitter unit

exposed to excessive solar

radiation

Does it function correctly in

the shade?

Place the receiver and/or

transmitter unit in the

shade

Electromagnetic fields are

interfering with transmis-

sion

Does it function after

removing potential sources

of interference?

Signal is not transmitted

when interference sources

are operational

Key in remote control

jammed / two buttons

pressed at same time

Does the “Transmitting”

symbol appear on the dis-

play?

Release the key / only

press one key

Batteries in remote control

are flat

Have new batteries been

inserted? Is the display

incomplete?

Insert new batteries

REMKO MXW

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