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Status code index · Enphase microinverter system

Enphase Panel Status Code Index

Every Enphase microinverter panel status code from the Enlighten portal — what it means, the most likely cause, and what to do. Enphase is a microinverter system: each panel has its own inverter and reports its own status code, unlike string inverter systems.
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  • Sourced from Enphase commissioning guides
  • Covers IQ7 and IQ8 microinverters
  • Enlighten portal panel status codes
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Excellent service from Solar Tech Support. Extremely quick to respond, easy to deal with and clearly very talented engineers. They were persistent throughout a complex GivEnergy battery issue and resolved everything completely. Highly knowledgeable, professional and reassuring support from start to finish. Highly recommended.

David Harris · May 2026

My 90-year-old father-in-law had a solar system installed nearly three years ago that never worked properly and kept tripping out. Neither the original installer nor GivEnergy could resolve the issues, and we were even pushed towards replacing the system entirely when GivEnergy went bust. I contacted Ron at Solar Tech Support via WhatsApp, and within a few hours he had diagnosed multiple faults — including incorrect wiring that posed a potential fire risk. He carried out a home visit in Nottingham for £295 (including parts), fixed everything, completed firmware updates, and ensured the system was fully operational. Since then, it has worked perfectly. Ron was knowledgeable, responsive, and took the time to explain everything clearly. Highly recommended — excellent value and complete peace of mind.

Julian F · Jun 2026 Google

I can add to the list of customers who had already 'given up' on GivEnergy due to their appalling customer service, and that was before they went into administration. So you can imagine my desperation when, having changed my ISP and my Inverter, predictably, proving to be the only device that didn't connect automatically to my new network, I found zero prospect of any customer support with GivEnergy having called in the administrators just five days earlier! The salvation came from Solar Tech Support. My IT advisor stumbled across their web site and some very helpful tips for beleaguered GivEnergy customers, as well as an offer to provide direct assistance. Nothing ventured, I decided to drop them an E-Mail, with very low expectations based on my experience of GivEnergy customer support. Within an hour Ron had responded with some pin point advice, and after a few exchanges of E-Mails he had nailed the problem, enabling the combined efforts of my IT advisor and solar installer to resolve it and reconnect my Inverter. Thank you Solar Tech Support, and Ron in particular, for coming to the aid of a deserted and despondent GivEnergy customer. Expert, razor sharp advice and first class customer service, even though I wasn't officially a customer.

customer · Apr 2026

My GivEnergy hybrid inverter + battery system had worked faultlessly for 3 years when it suddenly stopped charging and discharging the battery. On contacting my supplier, who had used a sub-contractor for the installation work, I was provided with an email address at GivEnergy but, as it turned out, this is only for GivEnergy Software who are not able to assist. A Google search led to the Solar Tech Support web site, which contains a wealth of helpful information. I requested a remote solar diagnostic, and after providing Ron access to my inverter, he was able to identify and fix the problem within minutes. I am very impressed by Ron’s expertise and knowledge, which included useful information on the current state of GivEnergy Ltd. I would thoroughly recommend Solar Tech Support.

Simon Riddle · Jun 2026 Google

STS were incredibly responsive and helpful In diagnosing an issue with my GivEnergy inverter. Although distance meant it was impractical for me to use them to fully solve the issue, I’m grateful for the help and detail they provided. Don is a real professional gent and a hero in my eyes.

Adam Miller · Jun 2026 Google

I work for a Solar Company and had a customer with a GivEnergy system that we are not versed in. Ron took the time to explain the issues my customer was having and between us managed to rectify the issues. 10 Stars ... Thanks again STS

Craig Daly · Jun 2026 Google
How to find your panel status code. Enphase panel status codes appear in the Enlighten Manager portal (enlighten.enphaseenergy.com) and the Enphase app. Click on any individual panel in the system map — the panel detail shows its current status code. A panel showing in yellow, red, or grey in the system map has a status code. Take a screenshot of the full system map and note which panels are affected.
Not producing status codes

Panel status codes when the microinverter is not generating power. Some are normal (night, low light), others indicate a fault.

Power too lowGenerating below minimum
The microinverter is reporting that the panel is generating less than expected. Check for shading, soiling, or a bird strike on the affected panel. If a single panel is affected while neighbours are producing normally, the panel itself or the microinverter may be faulty.
Sleeping (night / low light)Normal nighttime state
Expected status when irradiance is below the minimum threshold for generation. Not a fault. Clears automatically at dawn.
GridlessNo grid connection
Microinverter has lost grid connection. Check AC isolator and consumer unit. If one microinverter shows this while others are producing, the affected unit may have a relay or internal fault.
Not communicating / Unknown Offline
Microinverter is not sending data to the Envoy. Check the Envoy LED — three solid green LEDs indicate normal operation. A panel showing Unknown for more than 24 hours during daylight may have a power line communication fault or a hardware failure.
Communication / Envoy faults

Status codes related to communication between the Envoy gateway and microinverters, and to internet connectivity.

Envoy offline No Envoy comms
The Envoy gateway has lost internet connection. Check Envoy ethernet cable or WiFi connection. A flashing amber broadband LED on the Envoy indicates connectivity loss. Power cycling the Envoy (unplug for 30 seconds) often restores connection.
Microinverter not discoveredDevice discovery failed
New microinverter not found by the Envoy. Ensure the microinverter has been installed on a powered panel, wait 20 minutes for discovery, then re-scan in Enlighten Manager.
PLC communication errorPower line signal lost
Power line communication between microinverter and Envoy has failed. Check that the Enphase power line carrier module (if fitted) is plugged in at the distribution board. If no PLC module, the microinverter uses the AC wiring — check there are no arc fault breakers or AFCI breakers interrupting the signal.
Grid events

Grid voltage and frequency events that cause the microinverter to disconnect as a safety protection.

Grid frequency out of rangeFrequency protection trip
Grid frequency outside acceptable range (49.5–50.5 Hz). Transient events clear automatically. Recurring issues indicate a grid-side fault — contact DNO.
Grid voltage out of rangeVoltage protection trip
Grid voltage outside acceptable range (207–253V). Check AC connections. Contact DNO if recurring.
G98 / G99 tripProtection disconnect
Microinverter tripped on G98 or G99 protection. Check grid conditions — this is a safety protection function, not a fault.
Microinverter hardware faults

Status codes indicating hardware faults in the microinverter unit itself.

DC voltage too highPanel voltage high
Panel open-circuit voltage too high for microinverter input. Check panel Voc specification against IQ8 or IQ7 microinverter maximum input voltage.
Over temperatureMicroinverter overheating
Microinverter temperature too high. Check that the panel mounting has adequate clearance for airflow beneath. A microinverter on an inadequately ventilated flat roof can overheat in summer.
Microinverter fault Hardware fault
General microinverter internal fault. Power cycle the affected string (AC isolator off, wait 2 minutes, back on). If the fault persists after 2 power cycles and the panel is producing zero, the microinverter unit may need replacement.
Enlighten / monitoring faults

Status codes related to the Enlighten monitoring portal and data reporting.

System not reportingPortal data gap
Enlighten has not received data from the system. Check Envoy LED status. If Envoy is online but Enlighten shows no data, there may be a cloud-side processing delay — common after firmware updates. Wait 24 hours before escalating.
Array count mismatchInventory mismatch
Enlighten is expecting a different number of microinverters than are discovered. This occurs after adding panels or if a microinverter goes offline permanently. Re-scan from Enlighten Manager.
Code not listed here?

Enphase releases firmware updates that may introduce new status codes. If your code isn't listed, share the exact status from your Enlighten system map and we'll identify it.

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Full diagnostic guides by status type
Not communicating · Unknown
Microinverter not communicating

Envoy power cycle, PLC signal checks, and microinverter replacement indicators.

Envoy offline
Envoy gateway offline

Broadband LED status, router checks, and port 443 requirements.

Power too low · panel fault
Panel producing below expected

Shading diagnosis, soiling checks, and individual panel hardware faults.

FAQ

Enphase status code questions

Panel status codes appear in the Enlighten Manager portal at enlighten.enphaseenergy.com and in the Enphase app. Click on any panel in the system map to see its current status and code. Panels showing in yellow are warning status, red indicates a fault, and grey means the panel is not reporting. Take a screenshot of the full system map showing all panel statuses before contacting support — this is the most useful diagnostic information we can have.
A single panel showing as not communicating usually means that specific microinverter has lost power line communication with the Envoy gateway, or the microinverter itself has stopped responding. First, check whether the panel is shaded (shaded panels can drop to zero without a fault). If it is unshaded and neighbouring panels are producing normally, try a power cycle — turn the AC isolator off, wait 2 minutes, then back on. If the panel still shows unknown after a full day of generation, the microinverter unit may need replacement.
The Envoy goes offline when it loses its internet connection. Check the broadband LED on the Envoy — a solid green LED means internet is connected. A flashing amber LED means connectivity is lost. Check your router and ethernet cable (or WiFi signal if using wireless). Power cycling the Envoy by unplugging it for 30 seconds usually restores the connection. If the Envoy's broadband LED remains off, check that your router is functioning and that port 443 outbound is not blocked.
Yes, many Enphase microinverter faults can be initially assessed through the Enlighten monitoring platform. STS offers free remote diagnostics (you only pay £75 if we fix it remotely), and if an on-site visit is needed, our engineers are experienced with the full Enphase product range.
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