Clicking sound from SolarEdge AC disconnect when it's hot outside

[Ampster]

No, not all night, but continuously when it's hot. We recently had a 102 degree day, and it kept clicking until after dark.

Okay, one solution would be earplugs if you want to go to bed before it gets dark.

[akirmse]

No, not all night, but continuously when it's hot. We recently had a 102 degree day, and it kept clicking until after dark.

[Mike 134]

My solar edge makes the same sound as you posted right around sundown as it transitions to sleep mode. lasts maybe 2 mins. Yours do it all night?

[akirmse]

We have 8kW of panels (producing ~6kW max) connected to a SolarEdge inverter, model SE7600H-US, which is connected to this backup interface, part number BI-EUSGN-02. We also have a 16kWh LG RESU battery connected to the inverter. The backup interface is behind a new main panel we had installed, which connects to utility power.

[oregon_phil]

akirmse , that is a SolarEdge backup interface which is way mor than an AC disconnect. I don't know anything about it, but you might get more thoughts on it if you posted what equipment you own, model numbers, and how it's wired up.

[solarix]

I quit doing SolarEdge stuff years ago, but that sounds like a relay is trying to engage and immediately clicks back off. Don't worry, it won't last long - the relay will die in a few days at that cycle rate.
Are you saying this happens at night? Definitely call Solar Edge tech support and get some help.

[akirmse]

When it's over about 85 degrees F outside, our newly-installed SolarEdge AC disconnect box makes a clicking sound every 2-3 seconds or so. It's pretty loud, and since the box is installed outside of some bedroom windows, it's difficult to sleep on hot evenings. Our installer has so far indicated it's "normal" without saying what the sound is. To me it sounds like a relay switching. It's coming from the right side of the box. There is also a quiet fan that turns on that doesn't bother me.

Outside of the box: https://photos.app.goo.gl/APTghdYf1V6MoNti7
Inside of the box: https://photos.app.goo.gl/BXykCs6C1Njw2Qgg8
Short video and audio containing the clicking sound: https://photos.app.goo.gl/xZW9Q63gPYCVxJY6A

Does anyone know what this is and what can be done about it?

Thanks!
---Andrew