What you will see
- IE 20 on cold mornings
Why it happens
Panel voltage rises in cold weather.
Diagram
Cold mornings raise string voltage
Summer noonSpring morningCold winter morning
Illustration. IE 20: fewer panels in series.
What you can check yourself
- Note recent panel changes
What not to do
- Do not add panels yourself
When to call us
- Re-string with fewer panels
Winter mornings
We check SolaX strings for winter voltage.
Send us
alarm, panel model and panels per string