Heiko Thermal 12, Руководство пользователя

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4. Usage
Type
Code
Description
Solution
Unit working
statue Blinking
times
F11
System evaporating
pressure too low
If system too low pressure protection detected by evaporating
pressure sensor happened 3 times in a certain period of time, it gives
this failure code and unit can't be restarted until repowered. Check
whether system has not enough refrigerant or leakage inside(more
likely it is not enough refrigerant that caused this abnormal
evaporating pressure); whether fan motor and water pump is working
OK; whether condenser is blocked; whether EEV whether EEV
works normally; whether water temperature too low, and whether
water inlet&outlet temperature has too big difference in cooling
(should no bigger than 8
℃ ).
F12
System condensing
pressure too high
If system too high pressure protection detected by condensing
pressure sensor happened 3 times in a certain period of time, it gives
this failure code and unit can't be restarted until repowered. Check
whether water flow rate is not enough (more likely it is not enough
water flow rate that caused system build up too high pressure);
whether fan motor and water pump is working OK; whether
condenser is blocked; whether EEV works normally; whether water
temperature too high, and whether water inlet&outlet temperature has
too big difference (should no bigger than 8
℃ )
27
Compressor stops
28
Compressor stops
Failure
E01
System
failure
Communication
between operation
panel and indoor
PCB or outdoor
PCB failure 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.
E02
Communication
between outdoor
main control PCB
and module PCB
Check the communication cable between outdoor power PCB and
deiver PCB. Check whether outdoor power PCB and deiver PCB is
broken.
E03
Compressor phase
current failure
(open/short circuit)
Check whether the power cable to compressor is broken or short-
circuit.
E04
Compressor phase
current overload
(over current)
Check whether the power cable to compressor is broken or short-
circuit.
E05
Compressor driver
failure
Check whether compressor drive PCB is broken, or cable to
compressor is wrong connected.
E06
Module VDC over
high/low voltage
failure
Input voltage too high or too low.
E07 AC current failure
Check the current to outdoor unit, and compare it with the unit
current shown on the operation panel. If the difference is not big,
check whether the system has enough refrigerant (more likely it is not
enough refrigerant that caused this abnormal low current). If the
difference is big, outdoor power PCB is broken. Please replace it with
a new one.
E08 EEPROM failure
Cut the unit power and short-circuit JP404 port on outdoor power
PCB, repower the unit, cut power again and cancel the short-circuit
on JP404 port. If still not OK, replace the outdoor power PCB.
Compressor stops
Compressor stops
Compressor stops
Compressor stops
Compressor stops
33
34
35
36
37
Compressor stops
38
39
Compressor stops
40
Compressor stops
F10
DC fan failure
(two)
Speed of both DC fans (for dual fan system) can't reach the required
value or no feedback signal. Please check whether the PCB or fan
motor is broken.
26
Compressor stops
107