Type
Code
Description
Solution
Unit working
statue
Blinking
times
4. Usage
Compressor stops
S08 Defrosting Failure
If unit continuously failed to finish the defrosting operation for three
times, it stops and give failure code S08. This can only be recovered
by re-powering the machine. Please check whether the actual water
temperature is too low for the unit to defrost, so the plate heat
exchanger has the risk of freezing up.
Compressor stops
and AH(or HBH)
works
S09
Water Outlet temp.
too low protection
in heating/hot water
If unit stops and AH(or HBH) starts if water outlet temperature is
lower than 15
℃
in heating and hot water mode. Compressor restarts
when the temperature is higher than 17
℃.
This is a protection for
protecting the safety of the compressor, as too low water temperature
in heating or hot water mode may kill the compressor.
Compressor stops
S07
Water outlet Temp.
too high protection
in heating/hot water
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.
1
.
LED indicator light on Indoor PCB
Dip switch on indoor PCB
2
.
Factory Default Setting
:
ON
OFF
1
2
Unit stops
S05
Serial port connect
error
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
four switches on indoor PCB are set to 1000. Unit recovers when
communication recovers.
Compressor stops
S06
Water outlet Temp.
too low protection
in cooling
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.
Protection
【
Indoor
PCB
】
Compressor stops
S10
Too small water
flow rate failure
If unit stops due to “too small water flow rate” protection(S02) over
three times in certain period of time, units stops and gives S10 failure
code. It can only be recovered by re-powering the unit. Check the
water system, especially the filter; check the working statue of water
pump.
Compressor stops
S11
Indoor anti-freezing
protection failure
in cooling
If unit stops due to “Indoor anti-freezing protection in cooling(S01)”
over three times in certain period of time, units stops and gives S11
failure code. It can only be recovered by re-powering the unit.
109
Содержание Thermal 12
Страница 119: ...5 Maintenance 5 1 119 Cable connected to fan motor capacitor 4 ...
Страница 127: ...6 Attached drawing Monoblock unit 1 127 Thermal 6 9 12 ...
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