3x6E on a SolarEdge HD-Wave single-phase inverter: Energy Meter Comm. Error: Energy Meter communication error - refer to Energy Meter troubleshooting

What it means

The manual says: Energy Meter Comm. Error: Energy Meter communication error - refer to Energy Meter troubleshooting.

Part involved: Energy meter / CT clamp communication.

Likely causes:

• Modbus/RS485 wiring fault to SolarEdge Energy Meter.
• Meter unpowered or mis-addressed.

Is it safe?

The inverter keeps running with some functions stopped.

Resetting itself: yes - clears when communication is restored.

Manual reset: no.

What you can check

• Read and note the exact code and time from the inverter display or app (screenshot).
• Check the meter's display is lit (look only).
• Note any recent electrical work near the meter/consumer unit.
• If the code persists, contact the installer. SolarEdge's list says 'OFF/ON to reconnect' for some codes - that means the inverter's own ON/OFF switch; only use it if your installer has shown you how. Never open the inverter or touch DC cables/connectors.

What the engineer will check

• Check meter RS485/Modbus wiring polarity and termination.
• Check CT orientation (arrow towards grid/house per manual) and seating.
• Check meter address/baud settings.
• Check export-limit setting (G99) - some inverters stop if export control is on and meter lost.

Who to ask for: PV/battery installer.

Certification: Installer or electrician for meter/CT/comms cabling; homeowner can handle Wi-Fi/router issues.

What you might notice

• Error code shown on inverter or app
• Battery not charging
• Monitoring dongle / Wi-Fi / app connectivity problem

Sources

• Troubleshooting SolarEdge Systems, Addendum (Europe & APAC) MAN-01-00333-1.2 ↗ · MAN-01-00333-1.2 · page PDF p.5 · Reviewed 24 September 2026

A code explains what the controller detected, not a confirmed root cause.

Reviewed: 24 September 2026