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How to find your fault code in the maker's manual

Up to date as of November 10, 2026

The only list of codes that counts is the one written for your exact robot. Not a forum post. Not a video about a different model. The maker's manual.

Here's how to get to it, even if the paper copy went out with the packaging.

Get your model name first

Everything starts with the model. Makers often sell several robots that look alike and signal differently.

Look over the robot body and the power unit or charger for a label or print. Write down the model name and any serial number. A support page from one maker tells you to note the exact model, serial number, precise behaviour of the unit before contacting after-sales support1.

Take a photo of the label too. It's a good habit, and it saves a trip back to the pool deck later.

Where the code list usually sits

Most manuals follow the same rough layout. Look for a section named something like troubleshooting, indicator lights, error codes or LED guide.

Inside it you'll normally find a table. Light color or blink count on the left, the likely cause and the suggested step on the right.

Read the whole row, not just the cause. The step usually says what to check, and often says when to stop and call support.

If you lost the manual

You've got a few options.

  • The maker's support site. Makers post manuals per model. One maker's download page lists a separate user manual for each robot, with names like "Aiper Scuba L1 Cordless Robotic Pool Cleaner"2.
  • The product's own support page. Another maker's FAQ page for a single robot has a "Niya User Guide" section with a download button, described as everything you need to know about that robot3.
  • The dealer who sold or installed it. They can often tell you the model and point you to the right file.

Use the maker's own site, not a stranger's upload. A copy for the wrong model, or an old revision, can describe lights your robot doesn't have.

Finding your code listNote your exact model nameOpen the maker's support siteDownload the user manualFind the lights or fault section
Start with the exact model, then go to the maker's own site.

Check you've got the right one

Before you trust a code table, confirm three things:

  • The model name on the manual matches the label on your robot.
  • The manual covers your robot's power setup, whether it's corded with a power supply or cordless.
  • The table lists lights or beeps like the ones you see.

If the table doesn't match, you probably have the wrong manual. Go back and look again.

Don't assume the reset step is the same

Makers differ here too. One support page puts it simply: the procedure varies by brand1. Only do a reset if your manual names it for that light.

A different maker's page makes the same point about its own robots4.

Still stuck

No table, or your lights aren't in it? Contact the maker's support. Give them your model name, serial number and what the lights did. Photos help.

Before you open anything up, read the safe first steps. To see why patterns differ, there's the overview of how the lights work.

Sources used

  1. Pool robot that does not start or stops during the cycle, Beatbot
  2. Download User Manual, Aiper
  3. Niya Sonar 50 / F5 support FAQ, Maytronics
  4. Robotic Cleaner - Troubleshooting, Kokido