REMKO RVS 100H INOX, Operation Manual

The system has been manufactured using state-of-the-art production methods and in house  tested many times to 
ensure the system is 100% in working order. If malfunctions should occur, please check the system as detailed in 
the list below. For installations with an indoor-outdoor system, observe the chapter “Trouble-shooting and customer 
service” in both operating manuals.
Please inform your dealer if the system is still not working correctly after all the function checks have been per-
formed.

Touble-shooting and customer service

Malfunctions

Please note that this trouble-shooting table continues on the next page

Fault

Possible cause

Check

Remedial measures

The unit 

does not 

start

Display is not illuminated.

No power supply

Check the power connections at the mains 

and the voltage values.

Check breaker switches/fuses at the second-

ary side of the supplemental transformer.

Incorrect phase sequence. 

The KA3 phase sequence relay 

did not enable.

Replace power supply phase conductorat the 

at the terminal strip on the switch panel.

The display is illuminated but 

the unit does not start.

Unit in STAND BY

See paragraph "Key functions" for the acti-

vation of the unit.

No external enabling contact 

is shortened

Check connection to the GND - ID5 termi-

nals.

The unit does not start, the 

compressor icon in the display 

is blinking.

Start-up delay

Wait out the start-up delay (max 360 sec.), 

the compressor should then start.

The display blinks and 

alternately shows an 

alphanumeric code and the 

temperature value.

One or more protective 

devices have responded

Check which safety device has responded, 

correct the cause of the fault and reset the 

safety device (see "Fault display by code")

Compressor overload switch is 

activated.

Does the compressor icon light 

up and does the switch have 

voltage?

Have specialist replace switch or compressor.

The unit 

is work-

ing with 

reduced 

cooling/

heating 

capacity

Thermal load was increased.

Have there been any structural  

changes?

Maintain safety clearances.

Supply temperature too high 

(cooling) / too low (heating).

If the medium outlet tempera-

ture is approx. 5 ... 10 °C / 

35 ... 40 °C?

Increase/reduce medium intake temperature.

Air in the medium cycle.

Are automatic bleeders in-

stalled at the highest point?

Bleed manually or install automatic bleeders.

Condenser / evaporator tem-

peratures too high (cooling) / 

too low (heating).

Are the fins clean / free of ice 

and the operating limits  

complied with?

Comply with operating limits

Cooling: Clean fins, provide shade for the 

unit, heating: Reduce supply temperature

Incorrect parameter setting.

Check setting.

Change setting.

Pulse mode because of too 

little demand.

Is the system oversized?

Increase medium flow with the installation of 

a storage tank.

Medium 

discharge

Leak in the lines or insulation 

defective.

Are there leaks and are all of 

the lines insulated?

Seal and insulate.

Defrosting phase in heating 

mode.

Heating mode set?

Normal operating status.

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