Enphase IQ Battery Solid Yellow Light: What It Means
A solid yellow light on an Enphase IQ Battery means the battery is too hot to run. Make sure nothing blocks its vents, then book a technician visit.
What it means
The battery is too hot to run. This is common in Florida summers.
A solid yellow light is different from a flashing red light. A flashing red light on an IQ Battery needs a technician, with no homeowner steps.
What you can safely try
Here is what you can check before you book:
- Make sure nothing blocks the battery's vents.
- Make sure nothing is stacked against it.
- Leave the battery's switches and cover alone.
- Book a technician to check it.
Battery shut down during an outage? If the alert is Battery shutdown - overload (charge above 2 percent), turn off the big load right away; it restarts within about 5 minutes. Motors and pumps are hard to start, so turning off something like the oven may let a pump run. If it is Battery shutdown - depletion (charge 2 percent or lower), turn off appliances so it can recover when the sun returns.
When to stop and call
Stop and call us if:
- The battery shows a solid yellow light, even after you have checked the vents.
- The battery shows a flashing red light.
- The battery does not recover after a depletion shutdown.
- A burning smell, smoke, sparks, heat, buzzing, melting, water on or in equipment, or visible damage: stay away from the equipment, keep children and pets away, call 911 if there is smoke or fire, and book an urgent technician visit.
More error code help
More alerts are in our guide to Enphase App alerts, and every brand is in our solar and battery error codes guide.
Frequently Asked Questions
What does a solid yellow light on an Enphase battery mean?
The IQ Battery is too hot to run. Make sure nothing blocks the vents and nothing is stacked against it, then book a technician.
Is an Enphase battery yellow light common in Florida?
Yes, it is common in Florida summers. Make sure nothing blocks the vents, then book a technician.
What does a flashing red light on an Enphase IQ Battery mean?
A flashing red light needs a licensed technician, with no homeowner steps. Book a diagnostic visit.
My Enphase battery shut down during an outage. What can I do?
If the alert is Battery shutdown - overload (charge above 2 percent), turn off the big load right away; it restarts within about 5 minutes. If it is Battery shutdown - depletion (charge 2 percent or lower), turn off appliances so it can recover when the sun returns. If it does not recover, book a technician.
Can I flip the switch on my Enphase battery?
No. Any step involving the battery's switch or cover is for a licensed technician.
Send Sunny a photo
Not sure which alert you are looking at? Sunny, the chat assistant on this site, can read a photo of the screen. Open the chat on this page, tap the paperclip, and send a photo of your app or the equipment screen. Sunny answers day or night, tells you what the alert generally means and whether there is a safe step to try, and can take your address and a good time for a technician if one is needed.
Book a diagnostic
If the alert keeps coming back, or the steps above do not clear it, book a $395 on-site diagnostic visit. A licensed technician looks at the system and you get a written report with photos. Call or text (813) 285-4505, or request a visit on our solar repair page or our contact page. To keep a working system in good shape, see our solar maintenance plans.
About us: Fused Solar and Roofing is a licensed electrical, roofing and building contractor (EC13014750, CCC1331058, CBC1252064) serving Hillsborough, Pinellas, Pasco and Manatee counties since 2007, and certified with Enphase.
