Bedienungsanleitung REMKO KWD serie 25-35-45-55-70-85-100 (Seite 42 von 52) (Englisch)

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14 Troubleshooting and customer service

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

times to verify that they function correctly

. 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 of

Power failure, under-

voltage

Does all other electrical

equipment function cor-

rectly?

Check voltage and if neces-

sary wait until turned on

again.

Defective mains fuse/main

switch turned of

Are all lighting circuits func-

tioning correctly?

Replace the mains fuse.

Close main circuit breaker

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?

Plan for longer wait period

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?

Switch off the mains

breaker and switch it back

on. Have it inspected by a

specialist

Malfunction of the external

condensate pump

Has the pump shut down

due to a malfunction?

Check and if necessary

clean the pump

Heating mode: Minimum

heat exchanger tempera-

ture not reached

Is the unit in the warm-up or

cool-down phase (see "Mal-

function indicated by

flashing code")?

Check or increase the inlet

temperature

The unit does not

respond to the

remote control

Transmission distance too

far/receiver af

fected by

interference

Does the indoor unit beep

when pressing a key?

Reduce the distance to less

than 6 m or change position

Remote control is faulty 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 transmission

Does it function after

removing potential sources

of interference?

Signal is not transmitted

when interference sources

are operational

Key on remote control

stuck/dual key operation

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

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