Enphase › Problems
Enphase battery won't charge, discharge or follow its settings
The Enphase battery won't charge or discharge, or it charges, discharges or exports differently from what its settings should produce. This page covers what the battery and gateway lights and the app messages mean, what to check first, and the causes behind it.
What the lights mean
| What you see | What it means |
|---|---|
| Battery light slowly flashing green | The battery is charging. |
| Battery light slowly flashing blue | The battery is discharging. |
| Battery light solid green or solid blue | The battery is idle: not charging or discharging. |
| Battery light slowly flashing yellow | The battery is in sleep mode. |
| Battery light solid yellow | The battery is not operating because its internal temperature is high. |
| Battery light flashing red in sequences of two | The battery has an error. |
| DC disconnect light flashing red | The battery's DC disconnect switch is off. The battery can't charge or discharge until the switch is on, when the light goes solid green. |
| Gateway device communications light solid red | At least one device is not communicating with the gateway. |
Error codes that go with this problem
| Code | What it means |
|---|---|
| Battery Reporting Error, Battery lost the communication with BMU, or IQ Battery/IQ System Controller not communicating | The battery has lost communication with the rest of the system. |
| Battery Not Reporting | One or more battery modules are not reporting to the gateway. |
| System Controller not reporting | The System Controller has stopped reporting to the gateway. After more than 12 hours without contact, the system stays grid-tied and the battery stops charging and discharging. |
What to check first
- Look at the battery's status light. A slow green flash means it is charging, a slow blue flash means it is discharging, and solid green or solid blue means it is idle.
- Ask your installer to check the battery's DC disconnect light. If it flashes red, the switch is off and the battery can't charge or discharge until it is switched on.
- Write down any message the app shows, such as Battery Reporting Error or Battery lost the communication with BMU, and give it to your installer.
- Ask your installer whether Storm Guard shows as active. While it is active, the system won't export power whatever the schedule says, as a weather safety measure.
- Make sure your installer knows the rate plan you actually have with your utility. A rate schedule in the system that doesn't match it can stop the expected charging and discharging.
- In poor weather, too little sun to power the home can explain a battery not charging, with no fault present. If it still won't charge or discharge in good sun, call your installer.
The causes and the fixes
Partners see the causes behind this problem, most common first, the checks that tell them apart, and the fix for each, with part numbers and recent prices when a part is involved.