2068 on a Huawei SUN2000-L1 single-phase hybrid-ready inverter: Battery faulty, disconnected or battery breaker OFF while running (Minor)
Short answer
On a Huawei inverter, 2068 means: Battery faulty, disconnected or battery breaker OFF while running (Minor). The inverter keeps running with some functions stopped. An engineer is needed to fix the cause.
Reviewed 24 September 2026 · 1 source
What it means
The manual says: Battery faulty, disconnected or battery breaker OFF while running (Minor).
Part involved: battery link.
Likely causes:
- Cause 1 comms abnormal; 2 port overcurrent; 3 enabling cable; 4 port voltage abnormal.
Is it safe?
| Does the inverter stop? | Partly |
|---|---|
| Engineer needed? | Yes |
The inverter keeps running with some functions stopped.
Resetting itself: unknown.
Manual reset: Check battery; power-cycle sequence; support.
What you can check
- Read the full code and message on the inverter screen or in the FusionSolar 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).
- Look at the battery's fault indicator - if steady/blinking red, contact your installer/battery supplier.
What the engineer will check
- Check battery enabling/power/comms cables and RS485 settings; auxiliary power switch; shutdown and restart sequence.
Who to ask for: Battery/hybrid installer trained on the specific battery (manufacturer-approved installer).
Certification: Battery and hybrid-inverter DC work: installer trained/approved by the manufacturer; electrical work under BS 7671 by a competent person.
What you might notice
Sources
- SUN2000-(2KTL-6KTL)-L1 User Manual (Copy, AU) ↗ · Issue 06 · page PDF p.97 · Reviewed 24 September 2026
A code explains what the controller detected, not a confirmed root cause.
Reviewed: 24 September 2026