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Fimer / ABB Error Codes

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

Quickly identify problems with your Fimer or ABB solar system and learn the correct response procedures

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Fimer / ABB Inverter Models

Fimer acquired ABB's solar inverter business and continues to produce high-quality inverters for residential, commercial, and utility-scale applications. Fimer/ABB inverters are known for their reliability, efficiency, and advanced technology. The product line includes PVI series (single-phase and three-phase), TRIO series (three-phase string inverters), and REACT series (hybrid inverters with battery storage). These diagnostic codes are applicable to the majority of Fimer and ABB inverter systems. Error indicators typically manifest as error codes displayed on the inverter LCD screen, LED status lights, or in the monitoring portal. Error codes follow the format "E" followed by a three-digit number (e.g., E010, E011, E012).

How to Read Error Codes

• Check inverter LCD screen for error code display
• Review LED status indicators on inverter
• Check monitoring portal for system status messages
• Note error code format (e.g., E010, E011, E012)
• Consult Fimer/ABB documentation for your specific model
• Error codes typically start with "E" followed by numbers

Fimer / ABB Product Series

• PVI Series - Single-phase and three-phase inverters
• TRIO Series - Three-phase string inverters
• REACT Series - Hybrid inverters with battery storage
• Outdoor and Indoor Models - Various installation options
• Monitoring Systems - Advanced system monitoring and control

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Understanding Diagnostic Codes

Fimer and ABB 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 monitoring portal. Error codes typically follow the format "E" followed by a three-digit number (e.g., E010, E011, E012). This intelligent diagnostic framework enables rapid problem identification and helps determine the appropriate response. All Fimer/ABB inverter series (PVI, TRIO, REACT) 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 Fimer/ABB installer for professional diagnosis and repair.

DC/DC Converter Errors

Problems with the DC/DC booster circuit and voltage conversion.

Code	Meaning	Possible Causes	Solutions
E010	Bulk Low - Low bulk voltage in DC/DC circuit	•Low input voltage at inverter •Low solar irradiation •Insufficient DC input power •String voltage too low •Shading on PV modules •Faulty PV string	If error occurs sporadically, it may be due to external factors like low irradiation Check PV string voltage with multimeter Verify sufficient solar irradiation is available Inspect PV modules for shading Check DC connections and wiring If error occurs regularly even with high irradiation, contact customer service Verify string configuration matches inverter specifications
E011	Ramp Fail - High response time of booster circuit	•Internal inverter error in DC/DC circuit response time •Booster circuit malfunction •Control circuit issue •Component failure	This is an internal error that cannot be checked externally Turn inverter OFF and ON again If problem persists after restart, contact customer service May require professional diagnosis and repair
E012	DcDc Fail - Error in booster circuit detected by inverter circuit	•Internal inverter error in DC/DC circuit function •Booster circuit failure •Component malfunction •Control board issue	This is an internal error that cannot be checked externally Turn inverter OFF and ON again If problem persists after restart, contact customer service May require professional diagnosis and component replacement

Configuration and Input Errors

Problems with inverter configuration and input settings.

Code	Meaning	Possible Causes	Solutions
E013	Wrong Mode - Incorrect input configuration (parallel instead of independent)	•Inverter configured for parallel inputs but input voltages differ by more than 20 Vdc •Incorrect IN MODE switch setting •Missing bridges between input channels •String configuration mismatch •Different number of modules per string •Different tilt/orientation of strings	Check that IN MODE switch is correctly set to PAR Verify bridges between both input channels are installed Ensure strings at input have same number of series-connected solar modules Verify strings have same tilt and orientation Check string voltage balance (should not differ by more than 20 Vdc) If both inverter configuration and PV generator properties match specifications, contact customer service

Temperature and Overheating Errors

Problems with inverter temperature and thermal protection.

Code	Meaning	Possible Causes	Solutions
E014	Over Temp. - Overtemperature in inverter	•Ambient temperature above 60°C •Insufficient ventilation •Direct sunlight exposure •Blocked air vents •High ambient temperature •Inverter installed in enclosed space	Ensure inverter is installed in well-ventilated area Verify ambient temperature is below 60°C Improve ventilation around inverter Ensure inverter is not exposed to direct sunlight Check that air vents are not blocked Verify adequate clearance around inverter Allow inverter to cool down before restart Relocate inverter if necessary to improve ventilation

Inverter Circuit Errors

Problems with the DC/AC inverter circuit and power conversion.

Code	Meaning	Possible Causes	Solutions
E016	Inverter Fail - Error in inverter circuit detected by booster circuit	•Problem in DC/AC inverter circuit •Inverter circuit failure •Component malfunction •Control board issue •Power stage failure	This is an internal error that cannot be checked externally Turn inverter OFF and ON again If problem persists after restart, contact customer service May require professional diagnosis and repair Component replacement may be necessary
E017	Start Timeout - High response time of inverter	•Internal error regarding response time of DC/AC circuit •Inverter startup failure •Control circuit issue •Low input power during startup	If error occurs sporadically, it may be due to external factors like low irradiation Check DC input voltage and power Verify sufficient solar irradiation is available Turn inverter OFF and ON again If error occurs regularly even with high irradiation, contact customer service May require professional diagnosis

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Critical Safety Notice

Do not attempt DIY repairs on your Fimer or ABB solar system. The majority of diagnostic codes relate to high-voltage DC and AC electrical systems, grid connection safety mechanisms, or critical safety features. Many error codes indicate internal faults that cannot be checked externally and require professional diagnosis. Upon encountering persistent error codes, contact a certified Fimer/ABB installer without delay. Always turn the inverter OFF and ON again before contacting service, as some errors may be resolved by a simple restart.

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

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Maintenance Guidelines

Scheduled Service Requirements

✓Professional inspection and service annually by certified Fimer/ABB 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 monitoring portal
✓Check inverter status and LCD screen monthly
✓Verify IN MODE switch setting matches system configuration

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 (ambient temp below 60°C)
✓Review system alerts and error codes promptly
✓Verify string voltage balance (should not differ by more than 20 Vdc)

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Frequently Asked Questions

What does error code E010 (Bulk Low) mean?

E010 indicates low bulk voltage in the DC/DC circuit. If this error occurs sporadically, it may be due to external factors like low solar irradiation. Check PV string voltage, verify sufficient solar irradiation is available, and inspect PV modules for shading. If the error occurs regularly even with high irradiation, contact customer service. Verify string configuration matches inverter specifications.

What should I do if I see error code E011 (Ramp Fail) or E012 (DcDc Fail)?

E011 and E012 indicate internal errors in the DC/DC booster circuit that cannot be checked externally. Turn the inverter OFF and ON again. If the problem persists after restart, contact customer service. These errors may require professional diagnosis and repair.

What does error code E013 (Wrong Mode) mean?

E013 indicates incorrect input configuration. The inverter is configured for parallel inputs but input voltages differ by more than 20 Vdc. Check that the IN MODE switch is correctly set to PAR, verify bridges between both input channels are installed, and ensure strings have the same number of series-connected modules with the same tilt and orientation. If configuration matches specifications, contact customer service.

What should I do if I see error code E014 (Over Temp.)?

E014 indicates the inverter temperature is too high (ambient temperature above 60°C). Ensure the inverter is installed in a well-ventilated area, verify ambient temperature is below 60°C, improve ventilation around the inverter, and ensure it is not exposed to direct sunlight. Check that air vents are not blocked and allow the inverter to cool down before restart.

How do I check error codes on my Fimer/ABB inverter?

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

What does error code E016 (Inverter Fail) or E017 (Start Timeout) mean?

E016 indicates an error in the DC/AC inverter circuit detected by the booster circuit. E017 indicates high response time of the inverter. Both are internal errors. Turn the inverter OFF and ON again. If E017 occurs sporadically, it may be due to low irradiation. If errors persist, contact customer service for professional diagnosis.

Can I reset error codes by turning the inverter OFF and ON?

Some error codes may be resolved by turning the inverter OFF and ON again, but many codes indicate serious internal conditions that require professional diagnosis. Always follow the recommended solutions for each specific error code. If an error persists after restart, contact customer service. Never attempt DIY repairs on high-voltage systems.