ISE smart connect Modbus Vaillant Product Manual page 23

Value Error number
geoTHERM/3
548 21
549 22
550 23
551 24
552 25
553 26
554 84
555 33
556 34
557 52
558 53
561 97
–
562
–
563
–
564
–
565
–
566
–
567
–
568
–
569
–
576
577 27
578 28
579 29
580 36
1471 55
1472 54
1478 98
1480 35
1495 37
1496 39
1497 89
1498 64
1499 59
1500 56
1501 85
1502 86
–
65535
Order No. S-0002-007
Description
Op Interlock: Heat source anti freezing protection : T5<4°C
Op Interlock: Heat source anti freezing protection : T6<-10°C
Op Interlock: No water flow
Op Interlock: C-H circuit anti freezing protection
Op Interlock: C-H flow temperature too high
Op Interlock: Compressor outlet overheat
Refrigerant pressure out of range
Error C-H circuit pressure sensor
Error Brine circuit pressure sensor
Hydraulic scheme / external sensors do not match
Appliance code / internal sensors do not match
no power for compressor
reserved EHP
MSG check refrigerant charge
Heat source temperature too high
High pressure cut-off during cooling operation
4WV did not switch
CH circuit freezing protection during cooling operation
Low pressure during cooling operation
Refrigerant temperature too low during cooling operation.
CH flow-return temperature difference too negative during cooling operation
Op Interlock: Refrigerant pressure too high
Op Interlock: Refrigerant pressure too low
Op Interlock: pressostates opened
Pressure brine low (<0.6bar for >1 minute)
Exchanger temperature sensor error
Air inlet temperature sensor error
Too low evaporation temperature: retrying.
Too high evaporation temperature: retrying.
fluid flow reversed (warning)
air flow blocked (warning)
fan blocked or defective or air flow fully blocked
lost communication with outdoor unit
de-icing was incomplete (warning)
STB ODU is open (error)
CH pump failure
brine pump failure
No fault existing
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Product Manual Page 23 (45)