Troubleshooting & Config
Look up an error code and work the fault.
Free to use without an account. A free installer account adds saved work, A4 previews and branded PDF exports.
Known error codes
Each code has a page with the meaning, likely causes, checks, fixes and when to escalate.
Deye
Troubleshooting looks up known inverter and battery error codes and returns the meaning, likely causes, checks to run in order, fixes and when to escalate. It also covers guided configuration settings.
How the Troubleshooting & Config works
Find the exact code
Read the code from the inverter display, app or manual. Codes differ between brands and firmware, so do not guess from a similar model.
Run the checks in order
Start with the safe, external checks: supply, breaker, battery voltage, communication cable and terminal torque.
Fix or escalate
Apply the listed fix only when it matches the cause you confirmed. Persistent faults with healthy equipment belong with the distributor or manufacturer.
Worked example
Deye F13
A hybrid inverter trips on grid loss despite the area having supply.
- Meaning: grid voltage or frequency outside the configured window
- Check supply at the main board and measure voltage
- Inspect AC input terminals for looseness
- Escalate persistent nuisance trips
Assumptions and limits
- Guidance only. Isolate and prove dead before working on AC or DC circuits.
- Error-code meanings vary by brand, model family and firmware version.
- A repeating fault with healthy batteries and correct settings needs a warranty assessment.
Frequently asked questions
How do I find an inverter error code?
Check the inverter display, app or manual for the exact code, then search it in the tool to see the meaning, common causes and recommended checks.
Does the tool fix the fault remotely?
No. It provides diagnostic guidance. Electrical faults should be checked by a qualified installer using safe isolation procedures.
What should I do if a fault repeats?
Record the code, operating conditions and battery state, then escalate to the manufacturer or a qualified solar technician if the recommended checks do not resolve it.
Related tools
Last updated 17 October 2026Maintained by Mishka Energy.
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