SUN-5-12K-SG01HP3-EU-DM2 three-phase hybrid (F-series table)
Deye F10 error code
Auxiliary power-supply board failure.
Likely causes
- Inverter on/off switch left open
- Auxiliary supply board failure
- Control board or ribbon-cable fault
- DC input voltage too low
Checks to run, in order
- 1Confirm the inverter on/off switch is on
- 2Measure the DC input voltage
- 3Inspect the internal ribbon cables for a loose connection
- 4Restart the inverter
Fixes
- Switch the inverter on and restart
- Restore factory settings after a successful restart
When to escalate
If the display stays dead or F10 returns with correct DC input, the auxiliary supply board needs distributor replacement.
Fix it with the right tools
Check the system around the fault before replacing parts: load, battery bank, PV string and commissioning settings. If you need a second opinion, send the code and your inverter model to our team.
Before you open the inverter
- Isolate both the AC and DC sides, then confirm the display is dead before touching terminals.
- Use insulated tools and one hand where possible. DC arcs do not self-extinguish like AC.
- If you see burnt terminals, swollen cells, leaking electrolyte or a burning smell, stop and escalate instead of resetting the fault.
Questions installers ask
What does Deye F10 mean?
Auxiliary power-supply board failure.
How do I fix Deye F10?
Switch the inverter on and restart Restore factory settings after a successful restart
When should I escalate Deye F10?
If the display stays dead or F10 returns with correct DC input, the auxiliary supply board needs distributor replacement.
Can I reset Deye F10 myself?
Only after isolating the AC and DC sides and running the checks above. If Deye F10 returns immediately, stop resetting it and escalate; a repeating fault usually points to a real circuit, battery or hardware problem.
Which models show Deye F10?
Deye F10 is documented for SUN-5-12K-SG01HP3-EU-DM2 three-phase hybrid (F-series table). Confirm the code on your own unit's display or manual before ordering parts.
More Deye error codes
- Deye F01PV input polarity is reversed at one or both DC inputs.
- Deye F02PV insulation resistance to earth is below the safety limit.
- Deye F03Ground fault detected on the PV array (GFDI).
- Deye F04GFDI ground-failure alarm: the PV array or inverter is not properly earthed.
- Deye F05Control-board EEPROM read failure.
- Deye F06Control-board EEPROM write failure.
Guidance reviewed 17 October 2026 by the Mishka Energy installer team. Error codes vary by brand, model family and firmware; confirm against the manufacturer manual.
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