What you will see
- Alarm 7 or 8 after rain or on dewy mornings
Why it happens
Wet connectors or damaged cable let current reach earth.
Diagram
Damp morning, weak insulation
Dry day
Panels and cablesWell insulated
→InverterStarts
After rain or fog
Wet connector or cracked cableLeaks to earth
→InverterAlarm 7 / 8
If it stays on dry days, there is damage to find.
What you can check yourself
- Note whether it only happens in wet weather
- Check again when the weather improves, as Sineng advises
What not to do
- Do not unplug connectors
When to call us
- Insulation test strings and cables
- Check earthing
Monsoon
We test insulation on Sineng systems after the Punjab monsoon.
Send us
alarm photos with weather