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SolaX Power Error Codes

Expert reference guide covering all SolaX Power inverter diagnostic codes with comprehensive troubleshooting procedures and professional repair guidance

Quickly identify problems with your SolaX solar system and learn the correct response procedures

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SolaX Power Inverter Models

SolaX Power produces a comprehensive range of solar inverters and hybrid energy storage systems for residential, commercial, and utility-scale applications. SolaX inverters are known for their advanced technology, high efficiency, and intelligent energy management capabilities. The product line includes single-phase (X1 series) and three-phase (X3 series) inverters, as well as hybrid inverters with integrated battery storage. These diagnostic codes are applicable to the majority of SolaX Power inverter systems, including X1, X3, and hybrid models. Error indicators typically manifest as error codes displayed on the inverter LCD screen, LED status lights, or in the SolaX monitoring portal.

How to Read Error Codes

• Check inverter LCD screen for error code display
• Review LED status indicators on inverter
• Check SolaX monitoring portal for system status messages
• Note error code format (e.g., IE 40, IE 41, IE 101)
• Consult SolaX documentation for your specific model
• Use ESC button to restart inverter when appropriate

SolaX Product Series

• X1 Series - Single-phase inverters for residential use
• X3 Series - Three-phase inverters for commercial applications
• Hybrid Inverters - Integrated battery storage solutions
• Energy Storage Systems - Complete battery solutions
• Monitoring Systems - Advanced system monitoring and control

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Understanding Diagnostic Codes

SolaX Power inverter systems incorporate sophisticated diagnostic capabilities that automatically detect operational issues. When a problem is identified, the system communicates through error codes displayed on the inverter LCD screen, LED status indicators, and status messages in the SolaX monitoring portal. Error codes typically follow the format "IE" (Internal Error) followed by a number. This intelligent diagnostic framework enables rapid problem identification and helps determine the appropriate response. All SolaX inverter series (X1, X3, hybrid) utilize continuous performance monitoring with real-time error detection. Error codes may vary slightly depending on firmware version and model. Always reference your specific model's installation manual for precise code definitions and consult with a certified SolaX installer for professional diagnosis and repair.

Arc Fault and Safety Errors

Critical safety errors related to arc detection and fire hazards.

Code	Meaning	Possible Causes	Solutions
IE 41	ArcFault - Arc fault detected in system	•Loose DC connections •Damaged DC wiring •Corroded connections •Faulty connectors •Arc in PV array •Poor cable connections between PV modules and inverter	Immediately shut down the system Do not attempt to restart Check cable connections between PV modules and inverter Inspect all DC connections for looseness Check DC wiring for damage Contact SolaX support if error persists This is a critical safety condition Professional inspection required before restart

Relay and Control Errors

Problems with relay control and bypass systems.

Code	Meaning	Possible Causes	Solutions
IE 40	BypassRelayFault - Bypass relay fault detected	•Bypass relay failure •Relay control circuit issue •Component malfunction •Internal relay fault	Press ESC button to restart the inverter If error persists, contact SolaX support This requires professional diagnosis May need relay replacement or repair
Relaisfehler	Relay Fault - General relay error	•Relay failure •Relay control circuit issue •Component malfunction •Internal fault	Disconnect PV+ and PV- and reconnect them Restart the inverter If error persists, contact SolaX support May require professional service

Power and Configuration Errors

Problems with power type detection and system configuration.

Code	Meaning	Possible Causes	Solutions
IE 101	PowerTypeFault - Power type detection error	•Power type configuration error •Software issue •System configuration problem •Firmware bug	Update the software/firmware Press ESC button to restart the inverter Verify power type settings in configuration If error persists, contact SolaX support May require firmware update
IE 102	Port OC Warning - EPS terminal overcurrent warning	•EPS (Emergency Power Supply) load exceeds system capacity •Overcurrent at EPS terminal •Off-grid load too high •EPS configuration error	Check if EPS consumers exceed system requirements Reduce EPS load if necessary Press ESC button to restart the inverter Verify EPS load capacity matches system specifications If error persists, contact SolaX support

Memory and System Errors

Problems with internal memory and system management.

Code	Meaning	Possible Causes	Solutions
IE 103	Mgr EEPROM Fault - Manager EEPROM error	•EEPROM memory corruption •Manager board issue •Memory write failure •Internal system error	Turn off the photovoltaic system, battery, and grid Turn them back on Allow system to reinitialize If error persists, contact SolaX support This may require professional service or component replacement

Temperature and Sensor Errors

Problems with temperature sensors and thermal monitoring.

Code	Meaning	Possible Causes	Solutions
IE 105	NTC Sample Invalid - NTC temperature sensor invalid	•NTC sensor not properly connected •NTC sensor failure •Sensor wiring issue •Installation environment problem •Sensor out of range	Ensure NTC is properly connected Check NTC sensor condition Verify sensor wiring connections Check installation environment Test NTC sensor resistance If error persists, contact SolaX support May require sensor replacement
IE 106	Bat Temp Low - Battery temperature too low	•Battery temperature below operating range •Cold installation environment •Battery heating function not activated •Insufficient battery heating duration •Battery in cold location	Check battery installation environment for proper heat dissipation Verify battery heating function is activated on inverter LCD screen Check that heating duration is set correctly Improve battery installation environment if necessary Ensure battery is in appropriate temperature range If error persists, contact SolaX support

Communication Errors

Problems with system communication and data transfer.

Code	Meaning	Possible Causes	Solutions
SPI-Fehler	SPI Communication Error - SPI communication fault	•SPI communication failure •Communication bus issue •Internal communication error •Wiring problem	Disconnect PV+ and PV- and reconnect them Check communication wiring Restart the inverter If error persists, contact SolaX support May require professional diagnosis

Grid Connection Errors

Problems with grid connection and grid status.

Code	Meaning	Possible Causes	Solutions
Netzausfall-Fehler	Grid Failure - Grid power outage or grid fault	•Grid power outage •Grid connection lost •Grid voltage out of range •Grid frequency out of range •Grid instability	System will automatically reconnect when grid returns to normal Wait for grid to stabilize Check grid connection Verify grid voltage and frequency are within acceptable range No action required if grid is temporarily down Contact utility company if grid issues persist

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Critical Safety Notice

Do not attempt DIY repairs on your SolaX solar system. The majority of diagnostic codes relate to high-voltage DC and AC electrical systems, grid connection safety mechanisms, or critical safety features. Specific codes requiring immediate professional intervention include: IE 41 (ArcFault), IE 40 (BypassRelayFault), and other safety-related errors. Upon encountering these codes, immediately shut down the system if safe to do so and contact a certified SolaX installer without delay.

Professional service is mandatory—contact a licensed solar installer or reach out to SolaX technical support for expert assistance.

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Maintenance Guidelines

Scheduled Service Requirements

✓Professional inspection and service annually by certified SolaX installer
✓Monthly visual inspection of solar panels for damage or soiling
✓Clean panels quarterly or as needed based on local conditions
✓Monitor system performance daily through SolaX monitoring portal
✓Check inverter status and LCD screen monthly
✓For hybrid systems, monitor battery status and health

Proactive Maintenance Strategies

✓Keep panels clean to maximize energy production
✓Trim trees and vegetation to prevent shading
✓Inspect DC wiring and connections for damage or corrosion
✓Monitor production trends for early problem detection
✓Ensure adequate ventilation around inverter
✓Review system alerts and error codes promptly
✓Keep firmware and software updated

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Frequently Asked Questions

What does error code IE 41 (ArcFault) mean?

IE 41 indicates an arc fault has been detected in the system. This is a critical safety condition. Immediately shut down the system and do not attempt to restart. Check cable connections between PV modules and inverter, inspect all DC connections for looseness, and check DC wiring for damage. Contact SolaX support if the error persists. This requires professional inspection before restart.

What should I do if I see error code IE 40 (BypassRelayFault)?

IE 40 indicates a bypass relay fault. Press the ESC button to restart the inverter. If the error persists, contact SolaX support. This may require professional diagnosis and potentially relay replacement or repair.

What does error code IE 101 (PowerTypeFault) mean?

IE 101 indicates a power type detection error. Update the software/firmware and press the ESC button to restart the inverter. Verify power type settings in configuration. If the error persists, contact SolaX support. This may require a firmware update.

How do I check error codes on my SolaX inverter?

Error codes can be viewed on the inverter LCD screen, through LED status indicators on the inverter, or in the SolaX monitoring portal. Check the LCD display for error messages (typically in IE format), observe the LED status lights, and log into your SolaX monitoring account to view system status and error history.

What should I do if I see error code IE 103 (Mgr EEPROM Fault)?

IE 103 indicates a manager EEPROM error. Turn off the photovoltaic system, battery, and grid, then turn them back on to allow the system to reinitialize. If the error persists, contact SolaX support. This may require professional service or component replacement.

What does error code IE 106 (Bat Temp Low) mean?

IE 106 indicates the battery temperature is too low. Check the battery installation environment for proper heat dissipation, verify the battery heating function is activated on the inverter LCD screen, and check that the heating duration is set correctly. Improve the battery installation environment if necessary. If the error persists, contact SolaX support.

Can I reset error codes by pressing the ESC button?

Some error codes may be resolved by pressing the ESC button to restart the inverter, but many codes indicate serious conditions that require professional diagnosis. Safety-related codes (arc faults, relay faults) should never be reset without professional inspection. Always follow the recommended solutions for each specific error code and contact a certified installer if the error persists.