28 BlueCool S-Series
Fault code
Possible cause Correction
Screen
LED
“Alive”
n.a. n/a
No pc-board output. Fuse faulty or break/
short-circuit in this electrical circuit.
Repair or replace fuse, rectify break/short-circuit in
electrical circuit or replace pc-board.
Pc-board damaged by high voltage (RT1
blown)
Replace pc-board.
Electronic relay (TRIAC) defective. Replace defective TRIAC or defective pc-board.
Compressor not running. Compressor defec-
tive or break/short-circuit in compressor wir-
ing.
Check electrical wiring or replace defective compres-
sor.
Compressor not running. Compressor over-
load or overload protection element on top of
compressor defective.
Allow to cool down for some time or replace defec-
tive overload protection element.
No or insufficient cooling or heating capacity.
Poor air or sea water flow, soiled or circula-
tion blocked.
Secure adequate air or sea water flow
(see A01 and/or A02).
No or insufficient cooling or heating capacity:
Refrigerant shortage.
A low refrigerant level is generally indicated by low
static pressure before start-up as well as non-fluctu-
ating low pressure in connection with low high pres-
sure reading.
Check for refrigerant leaks, repair if necessary and
top up required quantity of refrigerant.
No or insufficient cooling or heating capacity:
Oil block.
Leave air-conditioning system running in heating
mode. Call out a refrigerant specialist if necessary.
Technical datasheet available.
No or insufficient cooling or heating capacity:
Refrigerant circuit blocked. (capillary lines).
Have checked by refrigerant specialist. Technical da-
tasheet available.
No or insufficient cooling or heating capacity:
Compressor fault.
Have checked by refrigerant specialist.
Incorrect cabin/ambient temperature or water
temperature displayed. Temperature sensor
positioned incorrectly, subject to interference
or display values falsified.
Check whether the sensor is subject to direct fault
sources such as direct sunlight or devices radiating
heat. Calibrate sensor. Replace defective sensor.