Solid or flashing, we help you read the fault code and identify the cause. Share your SetApp alert or monitoring portal screenshot.
Book remote diagnosticBack to SolarEdge hubSafety: If you see AFCI (arc fault) in SetApp, do NOT restart. Isolate DC and AC switches and contact an engineer.
I reached on behalf of a friend, who had lost control of their battery following a storm. A couple giv energy “dealers” had attempted and said different fixes. None worked. Solar tech support solved it remotely on the first attempt almost instantly. Genuinely a 10/10 service.
Very very helpfuland so quick. Made sure that a non expert like myself understood what the problem was and how to resolve it.
Ron want out of is way to help, nothing was to much. He was very thorough in what he did Very knowledgeable I would highly recommend Ron and his company He did a fantastic job for me. if you have any problems, he'll do his best to help you out and resolve your problem. I wouldn't hesitate to recommend them
Absolutely wonderful. Would recommend without hesitation. I had an issue I was thinking would never be fixed and they fixed it. Help, advice and support every step of the way. I can't recommend highly enough. Thank you so much ⭐
Contacted Solar Tech Support in desperation. After explaining the issues I had with my system a diagnosis was made and a solution proposed. Fantastic service, even contacted a manufacturer to arrange replacement parts for me. Great communications, explained all they were doing and what I had to do, clearly and precisly. Followed up to confirm all was ok. Excellent service.
A superb service from Ron who went beyond the normal service received from other Tech support companies. I live abroad and was badly let down when my givenergy system failed (and the company went bankrupt) and the local supplier ran away from the problem. Ron sorted the problem and even accessed specialist coding for the inverter that would not be available for suppliers. Ron also ran a full diagnostic to insure that all was in good working order afterwards. Without Rons support and patient assistance I doubt I would ever have got the system back up and running. Well done and thankyou and you have a customer for the future.
Safety: If SetApp shows "Arc Fault Detected" (AFCI), do NOT restart the system repeatedly. AFCI is a safety protection indicating a potential dangerous condition. Isolate the DC and AC switches and contact a qualified engineer immediately.
Work through these steps in order. The fault code from SetApp or the monitoring portal is your key to understanding the exact issue.
Look at the red light on the inverter's LED panel. Is it:
The inverter has a persistent fault and has stopped producing. This requires investigation or intervention.
The inverter has a transient fault and is attempting recovery. Often clears automatically in 5–10 minutes.
In both cases, immediately open SetApp or the monitoring portal to find the exact fault code — this will tell you the cause.
Open SetApp (via Bluetooth) or the online monitoring portal (monitoring.solaredge.com). Look for the Alerts, Status, or Error Code section. Write down the exact code. Common red-light codes are:
Note: If no fault code appears in SetApp but the LED is red, try closing and reopening the app, or refreshing the monitoring portal.
SolarEdge inverters have three LEDs: DC (usually leftmost), Communication (middle), and AC/Grid (usually rightmost). Each turns red when that system has a fault. Look at the inverter panel and note which LED is red:
If the monitoring portal shows a grid voltage or frequency code (G70–G99) and the red light is flashing, this is usually a brief grid quality issue. The inverter is designed to disconnect if grid voltage goes outside safe limits (typically 207–253V for single-phase UK) — this is a safety feature. Here's what to do:
Do NOT restart the inverter repeatedly if you see a grid fault code — wait for it to recover naturally.
If SetApp or the portal shows "Arc Fault Detected" or P700/P701, this is a safety event, not an arbitrary trip. Arc fault detection (AFCI) means the inverter detected abnormal current patterns on the DC side — typically a damaged cable, corroded connector, or failed optimiser. Do not attempt to restart or reset the system.
AFCI faults require on-site investigation to identify the underlying wiring or component issue. Repeated resets without fixing the cause can lead to further damage or safety risks.
SolarEdge inverters use three LED indicators on the front panel, each representing a different system: DC power, internal communication, and AC grid connection. When operating normally, all three are green. A red light on any of these indicates a fault in that system. The monitoring portal or SetApp provides the specific fault code — the LED colour and pattern narrow the category, but the code tells you the exact problem.
The key distinction is between transient faults (flashing red) and persistent faults (solid red). Flashing red usually means the inverter is attempting recovery — most often from a brief grid quality dip. Solid red means the fault is persistent and the inverter has stopped producing. A solid red light that doesn't clear within 10–15 minutes requires investigation.
Arc Fault Circuit Interrupter (AFCI) is a critical safety feature. Unlike other fault codes, arc faults should never be ignored or reset repeatedly. AFCI detection means the inverter has identified abnormal current patterns consistent with an arc in the DC wiring — a serious electrical hazard. The system stops producing to prevent further damage. Investigation and repair by a qualified engineer is mandatory.
Return to the SolarEdge brand hub to explore other common faults and services.
SolarEdge support hubShare your SetApp fault code or monitoring screenshot. We identify what the red light means and guide you through the next steps.
We use cookies to measure traffic and improve our ads — including sharing limited, hashed details with Meta (Facebook) and Google to measure ad performance. Accept, or decline for essential cookies only. Privacy policy
