Vaillant VA 6-050 MXNHDI, Руководство по установке

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Multi Split Type Installation Manual
35 EN
Error Codes 16
Trouble Shooting
(indoor unit) Failure Code
(Check the wired remote controller) Possible Reasons
System low pressure
protection
1F*
Low pressure switch is disconnected, or
low pressure switch worked, or Te too
low and faulty outdoor fan motors when
heating, or faulty indoor fan motor when
cooling, or refrigerant shortage
IPM protection 20
IPM over current, or short circuit, or IPM
temperature too high, or IPM input voltage
too low,or faulty SPDU(or ISPM).
EEPROM fault 21 Faulty outdoor unit PCB
Over hot protection of compressor 22
Serious lack of refrigerant of the system,
or the ambient temperature too high, or
PMVs be blocked
Over hot protection of SPDU (or ISPM) 23
Ambient tempreatrue too high, or outdoor
fan be blocked, or bad air circulation of
outdoor unit
DC fan motor fault 24 Fan is blocked, or the terminal is disconnected
from the PCB
Faulty 4-way valve switching on 25 Coil of 4-way valve is disconnected, or
faulty outdoor PCB
Faulty sensor Tc 26 * Sensor disconnected, or broken, or short circuit
Faulty sensor Toci 2A* Sensor disconnected, or broken, or short circuit
Low voltage protection 2C VDC<194V, too low voltage from power source
High voltage protection 2D VDC>400V, too high voltage from power source
Abnormal communication between main
PCB and SPDU(or ISPM)
2E
Communication cables broken, or not be
well connected, or faulty main PCB, or
faulty SPDU (or ISPM)
Compressor be locked 32 Faulty compressor or SPDU(or ISPM)
Compressor vibration too big 33 Faulty compressor
Compressor lose position 34 Faulty SPDU(or ISPM)
Faulty compressor start 35 Faulty compressor or SPDU(or ISPM)
Faulty position checking circuit 37 Faulty SPDU(or ISPM)
Compressor broken 38 Faulty compressor or SPDU(or ISPM)