Solar · Error codes · Zhejiang Deye Electrical Appliances Co., Ltd.
F13Zhejiang Deye Electrical Appliances Co., Ltd. · Deye SUN-SG04LP1-EU single-phase hybrid
F13 on a Zhejiang Deye Electrical Appliances Co., Ltd. Deye SUN-SG04LP1-EU single-phase hybrid: Working mode change
Short answer
On a Zhejiang Deye Electrical Appliances Co., Ltd. inverter, F13 means: Working mode change. The inverter keeps running with some functions stopped.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: Working mode change.
Part involved: operating mode.
Likely causes:
- Grid type/frequency changed; battery mode set to 'No battery'; old firmware on work-mode change.
Is it safe?
| Does the inverter stop? | Partly |
|---|---|
| Severity | Information only |
| Engineer needed? | No |
The inverter keeps running with some functions stopped.
Resetting itself: yes.
Manual reset: Usually disappears automatically; else DC and AC switches off one minute, then on.
What you can check
- Read the full code and message on the inverter screen or in the Deye Cloud / installer app and note the date/time for your installer.
- Check the inverter's AC isolator next to the inverter and the solar/battery breaker in the consumer unit are ON (do not reset a breaker that trips again - call your installer).
What the engineer will check
- Settings review; firmware update.
Who to ask for: Qualified electrician / MCS PV installer.
Certification: Firmware/config change via installer portal; no special certification but installer access normally required.
What you might notice
Sources
- Hybrid Inverter User Manual SUN-3K/3.6K/5K/6K-SG04LP1-EU ↗ · Deye Hybrid Inverter User Manual SUN-3K/3.6K/5K/6K-SG04LP1-EU (file dated 2026-04-27) · page 46 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026