Gorenje Aerogor ECO COMPACT INVERTER 10A, Installation Manual

Page: 84 / 97

77
S01
Indoor anti-freezing
protection in cooling
Compressor
speed down or
stop
Compressor speed down if coil temp. lower than 2
℃
;
Compressor stops if coil Temp. lower than -1 ℃ ;
Compressor restarts if coil Temp. higher than 6
℃
.1.
Check whether set temperature for cooling is too low;
whether system has too small water flow rate; check water
system especially the filter.2. Check whether system has
not enough refrigerant inside by measuring the
evaporating pressure. 3.Check whether ambient
temperature is lower than 15
℃
.
S02
Too small water flow
rate
Compressor stops
System water flow rate is less than minimum allowable
flow rate. Check the water system, especially the filter;
check the working statue of water pump.
S03
Water flow switch
failure Warning but unit
keeps on working Water flow switch failed to work. Check whether flow
switch is broken or not well connected.
S04
Communication
failure
Unit stops
Communication data lost too much. Check whether
communication cable is longer than 30M; whether there
has a source of the disturbance nearby the unit. Unit
recovers when communication recovers.
S05
Serial port connect
error
Unit stops
Communication failure between operation panel and the
indoor or outdoor PCB. Check the cable connection in
between. Check whether the last three switches on
outdoor power PCB are set to 001; whether last three
switches on indoor PCB are set to 001. Unit recovers
when communication recovers.
S06
Water outlet Temp.
too low protection in
cooling
Compressor stops
Compressor stops if water outlet is lower than 5
℃
in
cooling mode. Check whether temperature sensor Tc is
OK and well connected; whether set water temperature
too low; whether system flow rate too small.
S07
Water outlet Temp.
too high protection in
heating/hot water
Compressor stops
Compressor stops if water outlet is higher than 57
℃
in
heating or hot water mode. Check whether temperature
sensor Tc and Tw is OK and well connected; whether set
water temperature too high; whether system flow rate too
small.
S08
Unit defrosting
failure
Unit Stops and
can only be
restarted by
repower the unit
System water temperature is too low for defrosting. Please
either set the temperature higher, have the back-up
heating source connected or close some heating circuit so
to let the system has enough high-water temperature for a
safe defrosting.
S09
Water outlet Temp.
too low protection in
defrosting Quit current
defrosting
operation
If water outlet temperature is lower than 15
℃
during
defrosting, water may freeze up in the plate heat
exchanger and cause damage, so unit will quit current
defrosting mode. It will try again in next defrosting cycle
but if it continuously failed to make the defrosting for 3
times, it shows S08 failure code and can only be restarted
by repower the unit. Please either set the temperature
higher, have the back-up heating source connected or
close some heating circuit so to let the system has enough
high-water temperature for a safe defrosting.
S10
Too small water flow
rate failure
Compressor stops
If "too small water flow rate protection" happens over 3
times in certain period of time, it gives this failure code and
unit stops until repower. This failure means the system
water flow rate is less than minimum allowable flow rate.
Check the water system, especially the filter; check the
working statue of water pump.
S11
Indoor anti-freezing
failure in cooling
Compressor stops
If "indoor coil anti-freezing protection in cooling mode"
happens over 3 times in certain period of time, it gives this
failure code and unit stops until repower. 1.Check whether
set temperature for cooling is too low; whether system has