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EcoFlow RIVER 2 Pro Failure of communication between main control board and AC

What it means: Indicator flashes when the main control board and the AC module cannot communicate.

What to do

Restart the product. Normal operation resumes automatically after restart. If the warning persists after restart, stop using the product and consult EcoFlow customer service.

When to call service

The manual lists steps the owner can take. If the code comes back after them, or you are unsure, contact an authorized service dealer. A warning: the unit may keep running, but the cause needs attention.

Source: official EcoFlow manual, page 11, read . Summary of the manual, not a reproduction.

Models this manual covers

EcoFlow RIVER 2 Pro, EcoFlow RIVER 2 Max.

Other RIVER 2 Pro codes

AC output high temperatureAC output low temperatureAC output overloadBattery charging high temperatureBattery charging low temperatureBattery discharge high temperatureBattery discharge low temperatureCharging overloadCommunication failure between main control board and ACFan blockedUSB-C or car charging output overload

Questions

What does EcoFlow Failure of communication between main control board and AC mean?

Indicator flashes when the main control board and the AC module cannot communicate. (EcoFlow manual for the RIVER 2 Pro, page 11.)

How do I fix EcoFlow Failure of communication between main control board and AC?

Restart the product. Normal operation resumes automatically after restart. If the warning persists after restart, stop using the product and consult EcoFlow customer service.

Fuel, gas and electrical work on a power station is for qualified technicians; follow the safety section of the manual. All 12 RIVER 2 Pro codes →