Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.
Also applies to:Axpert MAX II TWIN 8KWAxpert MAX II TWIN 11KWAxpert MAX II TWIN 12KWAxpert MAX II Duplex 8KW+33
Bus voltage is too low
Cause: Bus voltage is too low.
If the battery is connected well, please return to repair center.
Source: Voltronic manual, p.47
Also applies to:Axpert MAX 8K TWIN PV11KAxpert MAX E TWIN 11KWAxpert MAX E 11K DuplexAxpert MKS III TWIN 6KW+2
Bus voltage is too low — Fault code 52 shown on the display with the fault icon on: Bus voltage is too low.
Cause: Bus voltage is too low.
Restart the unit, if the error happens again, please return to repair center.
Source: Voltronic manual, p.39
Also applies to:Axpert VM II 1.2KVAAxpert VM II 2.5KVAAxpert VM II Plus 3KAxpert VM II 3KVA PF1+6
Bus voltage is too low — Fault code 52 shown on the display with the fault icon on: Bus voltage is too low.
Cause: Bus voltage is too low.
Reduce the number of PV modules in series.
Source: Voltronic manual, p.29
Bus voltage is too low — Fault code 52 shown on the display with the fault icon on: Bus voltage is too low.
Cause: Bus voltage is too low.
Reduce PV serial amount.
Source: Voltronic manual, p.27
Solar1 over temperature — Fault code 52 shown on the display with the fault icon on: Solar1 over temperature.
Cause: Internal temperature is too high.
Source: Voltronic manual, p.52
Bat Curr Avg CT — Fault code 52 shown on the display with the fault icon on: Bat Curr Avg CT.
Cause: Internal components failed.
Please contact your installer.
Source: Voltronic manual, p.51
Price incl. VATAED 917
Price incl. VATAED 1,482
Price incl. VATAED 1,585
Price incl. VATAED 1,438
Price incl. VATAED 1,395
Price incl. VATAED 844
It depends on the model — 30 devices use code 52. On the Axpert MAX II TWIN it means: Bus voltage is too low. The card for each model on this page gives its exact meaning and fix.
52 is a fault code: the inverter cuts its output and the red LED stays solid until it is cleared.
If the battery is connected well, please return to repair center. The exact steps for each affected model are listed on this page.
52 is in the "Fault" class on the Axpert MAX II TWIN: 29 of the 38 codes documented for it.
All Axpert MAX II TWIN codes All Axpert MAX II Duplex codes All Axpert MAX II codes All Axpert MAX codes All Axpert KING II TWIN codes All Axpert KING codes All Axpert MKS IV TWIN codes All Axpert MKS IV codes All Axpert MKS II codes All Axpert KS codes All Axpert V (PF1) codes All Axpert 3KP/5KP 24V codes All InfiniSolar V II codes All InfiniSolar V II 6KW (Split Phase) codes All InfiniSolar V II WP codes All InfiniSolar V codes All Galleon One 5KL 48V codes
52 is in the "Fault" class on the Axpert MAX TWIN: 29 of the 38 codes documented for it.
All Axpert MAX TWIN codes All Axpert MAX E TWIN codes All Axpert MAX E Duplex codes All Axpert MKS III TWIN codes All Axpert WP TWIN codes All ESS-A510 codes
52 is in the "Fault" class on the Axpert VM II: 16 of the 24 codes documented for it.
All Axpert VM II codes All Axpert VM II (PF1) codes All Axpert VM III codes All Axpert VM IV TWIN (VM4 TWIN) codes
52 is in the "Fault" class on the InfiniSolar V II 1.5KW: 18 of the 24 codes documented for it.
52 is in the "Fault" class on the InfiniSolar 15KW: 27 of the 42 codes documented for it.
52 is in the "Fault" class on the InfiniSolar TX-PA 30KW: 55 of the 76 codes documented for it.
Compiled from official Voltronic user manuals. Always consult your device manual and a qualified technician before performing repairs.