10Fault

DEYE inverter error 10 (F010)

Auxiliary switch power supply failure

Also displayed as F010 / F10 on some models.

Fault — the inverter cuts its output and the red LED stays solid until the fault is cleared.

The exact meaning depends on your model:

SUN G01P3-EU-BM8 Series

InverterFault

Also applies to:SUN-120K-G01P3-EU-BM8SUN-125K-G01P3-EU-BM8SUN-130K-G01P3-EU-BM8SUN-135K-G01P3-EU-BM8SUN-136K-G01P3-EU-BM8SUN-60K-G03SUN-70K-G03SUN-75K-G03+12

What it means

Auxiliary switch power supply failure — The internal auxiliary switching power supply has failed; the DC 12 V rail is missing.

Cause: The internal DC 12 V auxiliary supply is not present (the manual: 'It tells the DC 12V is not existed').

How to fix it

Restart the inverter; if the fault still exists, please contact your installer.

Source: 041_BManual_SUN-120_125_130_135_136K-G01P3-EU-BM8_20251021_en_a2166559.pdf, p.61 · 033_BManual_SUN-70_75_80_90_100_110K-G03_20260702_en_a9db1e1b.pdf, p.60 · 042_BManual_SUN-120_125_130_135_136K-G01P3-EU-AM8_20260702_en_05f936e3.pdf, p.60 · +2 more official manuals

SUN G02P1-EU Series

InverterFault

Also applies to:SUN-7K-G02P1-EU-AM2SUN-7.5K-G02P1-EU-AM2SUN-8K-G02P1-EU-AM2SUN-9K-G02P1-EU-AM2SUN-10K-G02P1-EU-AM2SUN-10.5K-G02P1-EU-AM2

What it means

Auxiliary switch power supply failure — The internal auxiliary switching power supply has failed; the DC 12 V rail is missing. The manual notes this code has hardly ever appeared in the field.

Cause: The auxiliary switching power supply inside the inverter has failed, so an internal supply rail is missing.

How to fix it

Restart the inverter; if the code persists after the restart, contact your installer or Deye service and provide the inverter serial number, the installation date and the displayed error code.

Source: 065_BManual_SUN-7_7.5_8K-G02P1-EU-AM2_20260625_en_4466f08b.pdf, p.51 · 032_BManual_SUN-9_10_10.5K-G02P1-EU-AM2_20260625_en_df0f2106.pdf, p.51

SUN G04/G05/G06 3-Phase

InverterFault

Also applies to:SUN-6K-G06-LV-P1SUN-8K-G06-LV-P1SUN-6K-G06P3-EU-BM2-LV-P1SUN-8K-G06P3-EU-BM2-LV-P1SUN-10K-G05-LVSUN-12K-G05-LVSUN-15K-G05-LVSUN-15K-G06P3-EU-BM2-P1+48

What it means

Auxiliary switch power supply failure — The auxiliary switching power supply of the inverter failed.

Cause: The internal DC 12 V auxiliary supply that feeds the control electronics is absent.

How to fix it

Restart the inverter; if the fault still exists, contact your installer or Deye service.

Source: 063_BManual_SUN-6K-G06-LV-P1_20250923_en_30a96699.pdf, p.56 · 036_BManual_SUN-3_4_5_6_7_8_9_10_12_15K-G06P3-EU-BM2_20250506_en_0eb78440.pdf, p.56

SUN G04P1/G05P1 Series

InverterFault

Also applies to:SUN-1K-G04P1-EU-AM1SUN-1.5K-G04P1-EU-AM1SUN-2K-G04P1-EU-AM1SUN-2.2K-G04P1-EU-AM1SUN-2.5K-G04P1-EU-AM1SUN-2.7K-G04P1-EU-AM1SUN-3K-G04P1-EU-AM1SUN-3.3K-G04P1-EU-AM1+15

What it means

Auxiliary switch power supply failure — The auxiliary switching power supply of the inverter failed.

Cause: The auxiliary switch-mode power supply that feeds the control electronics failed.

How to fix it

Deye states this code has hardly ever appeared in the field; contact your installer or Deye service if it occurs.

Source: 031_BManual_SUN-1_1.5_2_2.2_2.5_2.7_3_3.3_3.6_4K-G04P1-EU-AM1_20260624_en_15adc00c.pdf, p.53

SUN SG01HP3/SG02HP3 Hybrid

InverterFault

Also applies to:SUN-5K-SG01HP3-EU-AM2SUN-6K-SG01HP3-EU-AM2SUN-8K-SG01HP3-EU-AM2SUN-10K-SG01HP3-EU-AM2SUN-12K-SG01HP3-EU-AM2SUN-15K-SG01HP3-EU-AM2SUN-20K-SG01HP3-EU-AM2SUN-25K-SG01HP3-EU-AM2+9

What it means

Auxiliary Power Board Failure — AuxPowerBoard_Failure - the auxiliary power supply board reported a fault.

Cause: The auxiliary power supply board is faulty; this can also be reported when the inverter's power switch is not turned on.

How to fix it

  1. First check whether the inverter switch is on
  2. Restart the inverter 3 times and restore the factory settings.

Source: 037_BManual_SUN-5_6_8_10_12_15_20_25K-SG01HP3-EU-AM2_20260224_en_9ef2717c.pdf, p.49 · 050_BManual_SUN-29.9_30_35_40_50K-SG01HP3-EU-BM3_4_20260224_en_544e1b2f.pdf, p.50 · 062_BManual__SUN-60_70_75_80K-SG02HP3-EU-EM6_20260224_en_38cbc9f6.pdf, p.50

GB-A HV Battery

BatteryFault

Also applies to:GB-A

What it means

ALARM_ID_CELL_LOW_VOLT_LEV_2 — Cell undervoltage.

Cause: A single cell fell below the level-2 under-voltage limit - over-discharge or a weak cell.

How to fix it

  1. Recharge the battery promptly.
  2. If the same cell keeps triggering the fault, contact Deye support.

Source: 008_deye_ess_user_manual_gb_a_jpnen_v02_20250829_3fea617e.pdf, p.13

Frequently asked questions

What does error 10 mean on a DEYE inverter?
It depends on the model — 8 devices use code 10. On the SUN G01P3-EU-BM8 Series it means: Auxiliary switch power supply failure. The card for each model on this page gives its exact meaning and fix.
Is error 10 a fault or a warning?
10 is a fault code: the inverter cuts its output and the red LED stays solid until it is cleared.
How do I clear or fix error 10?
Restart the inverter; if the fault still exists, please contact your installer. The exact steps for each affected model are listed on this page.

Related error codes

Other codes on the SUN G01P3-EU-BM8 Series

All SUN G01P3-EU-BM8 Series codes All SUN G03/G01P3-AM8 Series codes

Other codes on the SUN G02P1-EU Series

All SUN G02P1-EU Series codes

Other codes on the SUN G04/G05/G06 3-Phase

All SUN G04/G05/G06 3-Phase codes All SUN G06P3-EU Series codes

Other codes on the SUN G04P1/G05P1 Series

All SUN G04P1/G05P1 Series codes

Other codes on the SUN SG01HP3/SG02HP3 Hybrid

All SUN SG01HP3/SG02HP3 Hybrid codes

Other codes on the GB-A HV Battery

All GB-A HV Battery codes

Prefer the full written guide? Read the complete DEYE inverter error-code guide

Compiled from official DEYE user manuals. Always consult your device manual and a qualified technician before performing repairs.