Solar · Error codes
What is Huawei alarm 2032 Grid Loss / Grid Failure?
Short answer
Alarm 2032 means the SUN2000 inverter lost the mains grid: a power cut, or the AC circuit disconnected or its breaker switched off. It is a major alarm that stops generation and clears automatically once the grid is back. Check for a power cut and the inverter breaker (SUN2000-L1 manual Issue 06, checked 24 September 2026).
Last checked 24 September 2026 · 1 source
In more detail
- Huawei's online alarm reference calls it 'Grid Failed'; FusionSolar users often see 'Grid Loss'.
- 2033/2034 are under/over-voltage; 2036-2038 frequency alarms.
The facts, dated
- 01Huawei L1 manual: 2032 causes = power grid outage, AC circuit disconnected or AC circuit breaker OFF.
manufacturer · UK · checked 24 September 2026 · solar.huawei.com
Sources
- solar.huawei.com — solar.huawei.com/-/media/Solar/attachment/pdf/au/service/residential/SUN2000-2-6…
Last checked: 24 September 2026