Vaillant VA 6-050 MXNHDI, Руководство по установке

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Multi Split Type Installation Manual
38
16 Error Codes
Failure Code State of LED
5-4-3-2-1 Trouble Shooting Possible Reasons
24

High voltage protection VDC>400V, too high voltage from power source
25

Abnormal communication
between main PCB and
SPDU (or ISPM) Communication cables broken, or not be well con-
nected, or faulty main PCB, or faulty SPDU (or
ISPM)
26

Compressor be locked Faulty compressor or SPDU (or ISPM)
27

Compressor vibration too
big Faulty compressor
28

Compressor lose position Faulty SPDU (or ISPM)
29

Faulty compressor start Faulty compressor or SPDU (or ISPM)
30

Faulty position checking cir-
cuit Faulty SPDU (or ISPM)
31

Compressor broken Faulty compressor or SPDU (or ISPM)
Note!
Take off the plastic cover on the left side of the
unit, you can find the LEDs near the
communication terminal.
Symbol

means the LED is ON.
Symbol

means the LED is OFF. FF FF