33Fault

DEYE inverter error 33 (F033)

AC over current

Also displayed as F033 / F33 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-BM8

What it means

AC over current — The AC output current exceeded the over-current protection limit. The manual notes this code has hardly ever appeared in the field.

Cause: The AC output current exceeded the over-current protection limit.

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: sun-120k-g01p3-eu-bm8-sun-125k-g01p3-eu-bm8-sun-130k-g01p3-eu-bm8-manual.pdf, p.62

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

AC over current — AC over-current reported by the current measurement.

Cause: The AC current sensor or its circuit has an issue, or the configured inverter type does not match the machine.

How to fix it

Check the AC current sensor and its circuit; check whether the inverter type setting is right for this machine.

Source: sun-7k-g02p1-eu-am2-sun-7-5k-g02p1-eu-am2-sun-8k-g02p1-eu-am2-manual.pdf, p.52 · sun-9k-g02p1-eu-am2-sun-10k-g02p1-eu-am2-sun-10-5k-g02p1-eu-am2-manual.pdf, p.52

SUN G03/G01P3-AM8 Series

InverterFault

Also applies to:SUN-60K-G03SUN-70K-G03SUN-75K-G03SUN-80K-G03SUN-90K-G03SUN-100K-G03SUN-110K-G03SUN-60K-G01P3-EU-AM8-LV+7

What it means

AC over current — The AC output current exceeded the over-current protection limit.

Cause: The AC output current exceeded the over-current protection limit.

How to fix it

Restart the inverter; if the fault is not ruled out, contact the installer or the manufacturer's customer service.

Source: sun-70k-g03-sun-75k-g03-sun-80k-g03-sun-90k-g03-sun-100k-g03-sun-110k-g03-manual.pdf, p.62 · sun-120k-g01p3-eu-am8-manual.pdf, p.61 · sun-60k-g01p3-eu-am8-lv-sun-70k-g01p3-eu-am8-lv-sun-75k-g01p3-eu-am8-lv-manual.pdf, p.61 · +1 more official manuals

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+27

What it means

AC over current — Over-current detected on the AC output.

Cause: The AC output current exceeded the protection limit.

How to fix it

Restart the inverter; if the fault is not ruled out, contact the installer or manufacturer customer service.

Source: sun-6k-g06-lv-p1-manual.pdf, p.58

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

AC over current — Over-current detected on the AC output.

Cause: Usually the AC current sensor or its circuit has an issue, or the configured inverter type is not right.

How to fix it

Check the AC current sensor and its circuit; check that the inverter type is right.

Source: sun-2-7k-g04p1-eu-am1-sun-3k-g04p1-eu-am1-sun-3-3k-g04p1-eu-am1-sun-3-6k-g04p1-eu-am1-sun-4k-g04p1-eu-am1-manual.pdf, p.54

SUN G06P3-EU Series

InverterFault

Also applies to:SUN-3K-G06P3-EU-AM2-P1SUN-4K-G06P3-EU-AM2-P1SUN-5K-G06P3-EU-AM2-P1SUN-6K-G06P3-EU-AM2-P1SUN-7K-G06P3-EU-AM2-P1SUN-8K-G06P3-EU-AM2-P1SUN-9K-G06P3-EU-AM2-P1SUN-10K-G06P3-EU-AM2-P1+13

What it means

AC over current — Over-current detected on the AC output.

Cause: The AC output current exceeded the protection limit.

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: sun-7k-g06p3-eu-bm2-sun-8k-g06p3-eu-bm2-sun-9k-g06p3-eubm2-sun-10k-g06p3-eu-bm2-sun-12k-g06p3-eu-bm2-manual.pdf, p.57

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

AC Overcurrent Fault — AC_OverCurr_Fault - overcurrent on the AC (grid) side.

Cause: The grid-side AC current is too large.

How to fix it

  1. Check whether the grid current is too large
  2. Restart the inverter 3 times and restore the factory settings.

Source: sun-12k-sg01hp3-eu-am2-manual.pdf, p.50 · sun-29.9-30-35-40-50k-sg01hp3-eu-bm3-4-20260224-en-manual.pdf, p.51 · sun-60-70-75-80k-sg02hp3-eu-em6-20260224-en-manual.pdf, p.51

GB-A HV Battery

BatteryFault

Also applies to:GB-A

What it means

ALARM_ID_FUSE_VOLT_SAMP_ERROR — The fuse total-voltage sampling is abnormal (manual wording: 'the FUSE total pressure collection is abnormal').

Cause: The voltage measurement across the main fuse returned an invalid reading - a sampling-circuit fault or a degraded fuse connection.

How to fix it

  1. Restart the system.
  2. If the fault persists, contact Deye support for service.

Source: gb-a-pack6-gb-a4-gb-a10-gb-a16-manual.pdf, p.14

Frequently asked questions

What does error 33 mean on a DEYE inverter?
It depends on the model — 8 devices use code 33. On the SUN G01P3-EU-BM8 Series it means: AC over current. The card for each model on this page gives its exact meaning and fix.
Is error 33 a fault or a warning?
33 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 33?
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. 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

Other codes on the SUN G02P1-EU Series

All SUN G02P1-EU Series codes

Other codes on the SUN G03/G01P3-AM8 Series

All SUN G03/G01P3-AM8 Series codes

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

All SUN G04/G05/G06 3-Phase codes

Other codes on the SUN G04P1/G05P1 Series

All SUN G04P1/G05P1 Series codes

Other codes on the SUN G06P3-EU Series

All SUN G06P3-EU Series 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.