Generac PWRcell › Problems
Generac PWRcell system has never worked properly since installation
The PWRcell system has never worked properly since it was installed, even after major parts were replaced and Generac technicians came out. This page covers what the inverter lights mean, what to check first, and the cause behind it.
What the lights mean
| What you see | What it means |
|---|---|
| Inverter status light red | The inverter is overloaded, or a serious fault has been found. Someone likely has to step in before it runs again. |
| REbus status light red | A serious fault has been found on a device or on the REbus wiring. |
| REbus status light yellow | One or more devices are disabled, or no devices are detected. |
What to check first
- Write down which parts have been replaced so far, and any new errors that started after a repair, such as ground fault or PV lockout errors.
- Look at the inverter status light and the REbus status light and note their colors.
- If parts have been replaced and the system still doesn't work, contact Generac and ask for an engineer to look at the whole system on site.
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.