Sol-Ark
Sol-Ark hybrid inverters (5K, 8K, 12K, 15K, 18K residential; 30K and 60K three-phase commercial), the L3 HV and HVR high-voltage batteries, the SDM630MCT and External RGM meters, the Wi-Fi/Ethernet and 4G dongles and the MySolArk app; the residential units are Deye SUN-xxK-SG01LP1-family hardware with Sol-Ark firmware, so Deye-branded units share the fault codes and boards
Covered equipment
Failures by component
Battery Canbus / RS485 BMS port
- Inverter locks into battery mode, EG4 closed loop
- Battery comm never establishes, F58 or exclamation icon
- Inverter beeps F25 with no battery connected
- Communicating battery not recognized, Li-Batt Info blank
- Battery comm lost, inverter falls back to voltage mode
battery terminals and 200 A battery breakers
- Inverter shuts down on low battery, SOC reads high
- Battery Y busbar overheats or current capped at 160 A
- Battery shuts off right after breaker closes
AC output (LOAD terminal), grid terminal and neutral/ground busbars
grid relay / AC main contactor
parallel RJ45 ports and Modbus addressing
ON / OFF power button
auxiliary power supply
IGBT power stage, heatsink and cooling fans
PV MPPT inputs and PV DC disconnect
- DC LED stays off, PV reads zero volts
- Inverter shows F63 arc fault
- Inverter shows F20 or F55 DC overload
- Inverter shows F16 or F24 ground fault
- PV input terminal catches fire at inverter
GEN port and two-wire generator start relay
- AC-coupled PV inverter faults F35 at full battery
- Generator bogs or trips while charging battery
- Generator never starts on two-wire signal
- AC-coupled PV drops loads or feeds during generator run
- Generator shows 0 Hz or F60, never accepted
- AC-coupled PV keeps exporting with grid up
- Solar backfeeds generator on grid input during outage
inverter firmware (MCU / COMM) and remote updates
- Inverter output stops, display scrolls B0000
- One paralleled inverter keeps shutting off, screens differ
LCD touch screen
Wi-Fi / Ethernet / 4G dongle
CT limit sensors
main board / DSP control board
- Inverter dead with burn marks on main board
- Replacement board shows communication error, SunSync menu