Aircon Error Code Guides
Select your brand to check common codes, likely meaning, and next checks.
Choose your brand
Open the brand page to view all common codes in a single table. If your exact model or code is not listed, send us the sticker photo and we'll verify it for you.
How to read code results properly
Error codes narrow the likely fault path, but they do not always confirm the failed part by themselves. Use code output as triage, then validate with symptoms and model details.
- Match your brand first, then verify the exact code format shown on your controller.
- Cross-check what the unit is doing physically, not just what the display says.
- If code and behavior disagree, follow behavior-first diagnosis before approving work.
When code lookup is not enough
If no code appears, if your pattern is inconsistent, or if the table does not include your model-series variation, continue with these routes.
Need help with a code right now?
Tell us the brand, code, and what the unit is doing. We'll advise before recommending any work.
Chat with us about the error code