FELICITY ERROR CODE DIRECTORY · TROUBLESHOOTING REFERENCE

Felicity Solar error codes — find any code, see the fix.

Type the error code shown on your Felicity inverter, battery, or ESS unit. We show you what it means, why it triggered, and the recommended fix — sourced directly from the official Felicity Solar user manuals.

1,309codes
44devices
6categories
45manuals
severity
category
Showing 44 of 44
Battery27
Charge controller1
Energy storage system2
EV charger1
Inverter12
Micro-inverter1

How to use this directory

Three ways to find what you need — fast.

1
Search by code
Type the error code (F07, C05) into the search above. Press Enter — you go straight to the cause and fix.
2
Browse by device
Find your inverter, battery, or ESS unit by model number, then scan its full code list with severity at a glance.
3
Filter to focus
Use the severity and category filters to narrow the catalog to exactly what you’re troubleshooting.

How to use this directory

There are three ways to find what you need. Type the code (F07, C05, E021) into the search above and press Enter — you go straight to the cause and fix. Or browse by device: find your model number in the grid below and you get the full code list for that unit. Or use the severity filter to focus on critical faults first when you need to keep a system online.

How Felicity error codes work

Felicity Solar uses a few different code formats depending on the product line. F-codes (F01–F30) and E-codes (E01–E50) are inverter and ESS faults — usually output, voltage, or hardware issues. C-codes (C01–C20) are battery and BMS protection events — overcharge, over-discharge, cell-balance, temperature. W-codes are warnings that don't shut the system down. Severity tags on every row tell you whether the unit will keep operating, derate, or trip offline.

When to call a technician

Most warning-level codes (W-prefix, "Warning" tag) are safe for an experienced installer to clear after the recommended fix. Critical codes — short-circuit faults, IGBT failures, BMS hardware errors — should be handled by an authorized Felicity service partner. Every device page lists the source manual and page number so your technician can reference the exact context. Always disconnect AC, DC, and battery before opening any enclosure.

Batteries

Lithium-ion battery packs and BMS protections. Codes here are typically cell-level events — overvoltage, undervoltage, temperature, balance, communication.

Charge controllers

MPPT charge controllers for off-grid systems. Codes cover PV-side faults, battery-side faults, and over-temperature events.

Energy storage systems

All-in-one ESS units combine inverter, battery, and management. Codes here cover PV input faults, hybrid inverter operation, and battery integration alarms.

EV chargers

AC and DC charging units for residential and commercial use. Codes cover plug detection, communication faults, and safety interlocks.

Inverters

Hybrid, off-grid, and grid-tie inverters across the Felicity range. Codes cover output faults, grid-protection events, MPPT issues, and protection thresholds.

Micro-inverters

Module-level micro-inverters. Codes cover per-module faults, grid handshake errors, and communication issues.

Common questions about Felicity error codes

These are the questions installers and homeowners ask most often when troubleshooting Felicity Solar equipment.

What does the F07 error code mean on a Felicity inverter?
F07 indicates that the battery voltage exceeds the maximum allowed value for your inverter. Check that the battery pack specifications and the number of batteries in the bank match the inverter's rated input range. If the configuration is correct, the issue is usually a charge-controller setpoint that needs adjustment.
How do I clear a critical Felicity error code?
For most critical codes you should disconnect AC and DC, wait 60 seconds, then power back on. If the error returns immediately, do not bypass it — the inverter has detected a hardware issue or unsafe operating condition. Note the exact code, the device model number, and contact an authorized Felicity service partner. Every code in this directory shows the source manual and page so your technician has the exact context.
Is the difference between F-codes and C-codes important?
Yes. F-codes are inverter or ESS faults — typically PV, output, or hardware events. C-codes are battery or BMS protection events — overcharge, over-discharge, cell-balance, or temperature. The fix path is different: F-codes usually involve checking inputs and outputs at the inverter, C-codes involve the battery configuration and may require BMS reset.
Are these the same codes that appear in the Felicity user manual?
Yes. Every entry in this directory is sourced directly from official Felicity Solar user manuals. The "Source" line at the bottom of each code lists the exact manual filename and page number. We compile across 46 source manuals so you don't have to search each one separately.
My device is not in the list — what should I do?
The directory currently covers 44 Felicity devices across batteries, inverters, ESS units, charge controllers, and EV chargers. If your device isn't listed, check whether your model is covered as a variant of a similar device — the device pages list "also covers" model numbers. If still not found, contact Felicity support with your model number; we update this directory as new manuals are released.
Can I troubleshoot a Felicity inverter myself?
Many warning-level codes (W-prefix) and operational issues can be safely cleared by following the recommended fix in this directory. Critical and fault-level codes — especially those involving short-circuits, IGBT failures, or BMS hardware errors — require an authorized Felicity service technician. When in doubt, the recommended-fix block on each code page tells you whether the action is safe for an end user or requires a professional.