# Generac PWRcell battery blinking red: what it means and what to do

On a Generac PWRcell battery, a red status light blinking rapidly (every half second) means the battery is in an Error state. A slow red strobe about every 8 seconds means Sleeping, which is normal after the battery runs down during an outage.

## Common causes

- The battery has detected an error condition. Generac's owner manual does not list specific causes for the Error light; a dealer identifies the cause from the system's error details.

## Safe steps to try

1. **Read the light carefully** Fast red blinking (0.5 s) is Error. Red strobing about every 8 seconds is Sleeping. Green solid is charging, green fast blinking is discharging, green slow strobe is standby, and solid orange is disabled.
2. **Write down the code** Check the battery's device page on the PWRcell inverter control panel and write down or photograph any message or code shown. This helps your dealer diagnose the fault.
3. **Keep vents clear** Generac asks owners to keep snow, leaves and debris away from the battery's intake and exhaust vents.
4. **Do not open the battery** Generac warns the battery front cover must be removed by a qualified technician only.

## When to call a professional

Contact your installer or a Generac Independent Authorized Service Dealer (IASD) whenever the battery shows Error. If you see smoke, smell burning or notice heat from the battery, leave the area and call 911.

## Frequently asked questions

### Is red strobing every 8 seconds a fault?

No. Generac lists it as Sleeping. During a long outage the battery sleeps when it reaches its minimum charge and wakes every hour to look for solar power.

### What does a code like 7004 mean?

The owner's manual does not list the battery's numeric error codes. Give the exact code to your dealer, who can look it up with Generac.

### Can I reset the battery myself?

Generac's owner manual sends error conditions to a qualified technician; do not switch off disconnects or open the cabinet.

Canonical page: https://otovo.com/repair/generac/battery-error-red-led