Main Relay Open Error - H1-6.0-E Fault

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piergigi
Posts: 1
Joined: Wed Jul 05, 2023 6:07 pm

hi all, my inverter has always worked without problems. Today, precisely since 1:00 PM , a "Main Relay Open" error appeared.
I don't know what to do, I tried unplugging everything (restart inverter and batteries) and plugging it back twice but nothing to do.
I noticed that by turning off the exchange counter (feed-in), the error disappears.
However, obviously there is no input current, so the inverter does not work correctly and goes into EPS mode. PLEASEEE can you help me? Thank you
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calum
Posts: 400
Joined: Fri Feb 24, 2023 11:00 am
Location: Stockport

In the manual it says, about this fault message:
The grid relay keeps open.
• Disconnect PV, grid and battery, then reconnect.
• Or seek help from us, if not go back to normal state.
Unless your installer is in a position to help, you're going to need to contact Fox https://www.fox-ess.com/get-in-touch/
H1-3.7 / 6xHV2600 / 14x400W / RS485 Modbus->HA
FoxESS Modbus HA Integration
Contact Fox here
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