BlueCool S-Series 29
12.4 Faults not displayed on control ele-
ment
1. After switching on, the system does not react.
Check:
–
power supply,
–
fuses in supply lines,
–
fuses on pc-board, etc.
2. The compressor starts up, however no sea water exits from
the sea water outlet:
If the sea water pump is running:
–
Check whether the shut-off valves are opened.
–
Check whether the sea water strainer is blocked.
–
There could be air in the pump head causing the pump to
malfunction. Bleed the air out of the sea water line, e.g. with
a bleeder valve downstream of the pump.
If the sea water pump is not running:
–
Check the power supply to the sea water pump.
–
The pump rotor may be blocked by dirt. If possible and acces-
sible, using a tool turn the pump rotor from the motor side
until it moves freely.
3. The compressor and the sea water pump are running, but ne-
ither the heating mode nor the cooling mode function satis-
factorily.
–
Allow the fan to run in the automatic fan mode.
–
Check the air ducts.
–
If the air flow is interrupted with the compressor running, the
evaporator can completely freeze, causing the entire air
stream to be blocked.
–
If the sea water flow rate is too low, the sea water in the con-
denser can freeze in heating mode, blocking and damaging
the system.
–
Check the fan speed setting, correct if necessary.
–
Check the voltage level. Do not operate the system continual-
ly with insufficient voltage (under 195V (230V) or 97 V
(115V)).
–
Heating mode takes a long time to start up. This is normal
when the sea water is very cold. When the temperature of
the sea water drops below approx. 6 °C, the heating efficien-
cy decreases and the air-conditioning system takes a long
time before producing the expected heat.
–
if the performance of the system is still unsatisfactory after
checking all of the above points, you should check the refrig-
erant filling.
–
Check the fan speed setting, correct if necessary.
4. The compressor does run, however it switches off continually
before the set setpoint temperature has been reached. The
high-pressure and low-pressure switch switch off the compres-
sor due to an excessively high or excessively low working pres-
sure.
–
Check the minimum flow rate in the sea water circuit.
5. An incorrect cabin temperature is displayed. Cabin tempera-
ture sensor positioned incorrectly, fault sources are present or
displayed values are not correct.
–
Check whether the cabin temperature sensor is subject to di-
rect fault sources, like direct sunlight or devices radiating
heat.
–
Calibrate sensor or replace defective sensor.
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