Eaton ETN2000 Solar Inverter | Gold Coast Solar Power Solutions

The Eaton ETN2000 solar inverter can develop a number of different faults and when a fault is present an error message will be displayed on the screen and usually the fault light will be lit. Below is a list of error messages, explanations on the error or fault and a list of possible actions to take to resolve the issue.

View the Eaton ETN2000 Solar Inverter manual here.

Fault	Display	Possible actions
System Fault	Ground I Fault	1. The ground current is too high. 2. Unplug the inputs from the PV generator and check the peripheral AC system 3. After the cause is cleared, re-plug the PV panel and check PV-Inverter status. 4. If the problem persists please call service.
	Grid Fault	1. Wait for 5 minutes, if the grid returns to normal, PV-Inverter automatically restarts. 2. Make sure grid voltage and frequency meet the specifications 3. If the problem persists please call service
	No Utility	1. Grid is not connected. 2. Check grid connection cables. 3. Check grid usability.
Inverter Failure	PV over Voltage	1. Check the open PV voltage, see if it is greater than or too close to 500VDC 2. If PV voltage is less than 500VDC, and the problem still occurs, please call local service
	Consistent Fault	1. Disconnect PV (+) or PV (-) from the input, restart the PV-Inverter 2. If it does not work, call service
	Over Temperature	1. The internal temperature is higher than specified normal value 2. Find a way to reduce the ambient temperature. 3. Or move the inverter to a cooler environment 4. If it is not effective, call local service
	Relay Failure DC INJ High EEPROM Failure SCI Failure High DC Bus Low DC Bus Ref 2.5V Fault DC Sensor Fault GFCI Failure	1. Disconnect ALL PV (+) or PV (-) 2. Wait for few seconds 3. After the LCD switches off, reconnect and check again 4. If the message reappears, please contact Eaton.

Here are some error messages and descriptions that you may see on the Eaton ETN2000 Solar Inverter display screen.

Operating conditions	Display	Description
System Fault
Isolation failure	Isolation fault	Earth fault of the PV-panels or failure of surge voltage protection
GFCI active	Ground I fault	Leakage current detected from ground conductor is too high
Grid failure	Grid fault	Grid measured data is beyond the specification (voltage & frequency)
No utility	No Utility	Utility is not available
Input voltage too high	PV over voltage	Input voltage is higher than the maximum input voltage
Inverter Fault
Consistent failure	Consistent Fault	The readings of 2 microprocessors are not consistent. It could be caused by CPU and/or other circuits do not function well.
Temperature too high	Over temperature	The internal temperature of inverter higher than normal value
Output relay failure	Relay Failure	The relay between inverter and functional
Output DC injection too high	DC INJ High	Output DC injection is higher than expected
EEPROM problem	EEPROM Failure	EEPROM inside has data access problem
Communication failure between microprocessors Communication failure	SCI Failure	The communication between MCU inside is abnormal
DC bus voltage is too high	High DC Bus	The DC BUS voltage is higher than expected
DC bus voltage is too low	Low DC Bus	The DC BUS voltage is lower than expected
2.5V reference voltage inside problem	Ref 2.5V Fault	The 2.5V reference inside are abnormal
Output DC sensor abnormal	DC Sensor Fault	Detection of DC output sensor is abnormal
GFCI detection problem	GFCI Failure	The GFCI detection circuit is abnormal

For more details checkout the Eaton ETN2000 Solar Inverter manual’s Troubleshooting section. If you still have an issue after following the recommendations listed above we recommend that you contact a professional solar power expert. If you’re in the Gold Coast or Brisbane area contact Gold Coast Power Solutions here and we will be in touch to provide you with further assistance.

View the Eaton ETN2000 Solar Inverter manual here.

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