What you will see
- Will not start after rain or fog
- PV ISO-PRO01 or 02
Why it happens
Wet connectors, cracked cables or rodent damage 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
→InverterPV ISO-PRO
If it stays on dry days, there is damage to find.
What you can check yourself
- Note whether it only happens in wet weather
- Look for visible cable damage safely
What not to do
- Do not unplug connectors or open DC isolators
When to call us
- Insulation test each string
- Repair damaged cable
Monsoon and fog
ISO-PRO alarms rise in the Punjab monsoon. We test each string to find the fault.
Send us
alarm photos with weather and times