# Pudu BellaBot error messages: what they mean and how to fix them

Pudu BellaBot does not use number codes. It shows a message on its screen, such as I'm lost, or stops with an alarm. This page covers the alarms and troubleshooting entries in the BellaBot and BellaBot Pro manuals, with the fix Pudu gives.

Updated Nov 9, 2026. HTML version: https://robotsforthat.com/guides/pudu-bellabot-error-messages/

## Short answer

As of November 9, 2026, the BellaBot message staff see most is I'm lost, a positioning failure. Pudu's fix is to push the robot directly under its positioning mark (the boot point on the BellaBot Pro), check the right map is selected, and clean the vision sensor. Motor and sensor errors during a run are cleared by tapping OK or Continue operation, then rebooting if needed. If the robot will not start, check the emergency stop switch first: turn it clockwise to release it.

| Message | What it means | What to do |
|---|---|---|
| I'm lost. Please push me under the positioning mark | Robot lost its position on the map | Push it directly under the positioning mark, check the right map is selected, clean the vision sensor |
| Location failed, please click retry button | Robot could not find its position | Check it is under the positioning mark and the map is right, then tap retry |
| I'm lost. Please push me to the starting location (BellaBot Pro) | BellaBot Pro lost its position | Push it to the boot point facing the right way, pick the right map, tap reposition |
| Battery is too low | Battery too low to work | Push the robot back to charge |
| Suspended | Robot is not on flat ground | Put the robot on flat ground |
| The drive wheel, the auxiliary wheel is stuck or entangled | A wheel is stuck or tangled | Clean the drive and auxiliary wheels |
| Motor parameters error / Motor rotation anomaly | Motor fault during operation | Tap OK or Continue operation; reboot if it will not carry on |
| Sensor parameters error / Sensor connection error | Sensor fault during operation | Tap OK or Continue operation; reboot if it will not carry on |
| Self test fails at power on | Power on self test did not pass | Restart the robot under the positioning mark |
| Robot will not power on | Robot does not start | Release the emergency stop, charge it, check the battery and rear cover |
| Charging failure | Robot will not charge | Check the battery, key switch and rear cover; the charger may be damaged |
| Task does not finish after dishes are taken | Tray sensor misreads whether dishes were taken | Reseat the trays and clean the tray sensor |
| Robot stops or does not move smoothly | Robot moves unevenly or stops | Clear the path, clean the depth sensors, cover mirrors with matte stickers |
| Emergency stop pressed | The emergency stop switch was pressed | Turn the switch clockwise, then tap the screen to resume |
| Bottom light strip red while charging | Battery is at 0 to 10% | Keep charging; green means 90 to 100% |

## How BellaBot error messages work

BellaBot shows problems as plain messages on its face screen or as an alarm, not as number codes. Pudu's manuals group them into a few areas: positioning failures, operation errors from motors and sensors, charging and power on failures, tray detection, and the robot not moving smoothly.

The wording can change between software versions. Older V1.2 manuals say I am lost, please push me directly below the positioning mark, while newer manuals say I'm lost. Please push me under the positioning mark. The BellaBot Pro says push me to the starting location.

## Fixing I'm lost and location failed

BellaBot uses a vision sensor and positioning marks to find itself on its map. If it cannot place itself, it says it is lost. Pudu lists four causes: it was not powered on at the startup spot, the wrong map is selected, or too much has changed at the startup spot or on the site.

Push the robot directly under the positioning mark, tap Map selection if the map is wrong, and reboot if it still fails. Clean the vision sensor with a lens kit if oil has built up, and check its fill light is red. If the fill light is not red, Pudu says to contact its engineers.

## When the robot stops or misreads trays

If BellaBot keeps stopping on a route, clear the path and wipe oil and soup off the depth vision sensors. Narrow aisles and mirrors also cause trouble. Pudu says to check the aisle is wider than the minimum travel width and to put matte stickers on mirrors or shiny metal 16 to 20 cm above the floor.

If the robot does not leave after dishes are taken, or leaves too early, the tray sensor is the cause. Reseat the trays and clean the tray sensor with a soft cloth or lens cleaner.

## When to contact Pudu

Contact your local Pudu distributor first. Pudu's manuals give techservice@pudutech.com for technical service, and the BellaBot Pro guide lists the headquarters hotline +86 755-86952935. Pudu says warranty periods vary by part, and the warranty requires intact serial labels and proof of purchase, so keep both.

## Questions people ask

### What does I'm lost mean on a BellaBot?

It is a positioning failure. The robot cannot match what its vision sensor sees to the map. Push it directly under the positioning mark, check the right map is selected, and clean the vision sensor.

### Why will my BellaBot not turn on?

Check the emergency stop switch first and turn it clockwise to release it. Then check the battery level, the battery and rear cover fit, and that the key switch is ON.

### What do I do about a BellaBot motor or sensor error?

Follow the screen prompt and tap OK or Continue operation. If the robot cannot carry on, reboot it and start the task again. If it keeps happening, contact Pudu technical support.

### Why does BellaBot keep stopping in one aisle?

Pudu lists obstacles, dirty depth sensors, an aisle narrower than the minimum travel width, and mirrors or reflective metal. Put matte stickers on reflective surfaces 16 to 20 cm above the floor.

## Sources

1. [Pudu: BellaBot User Manual, troubleshooting chapter (Pudu help center PDF)](https://resource-wangsu.helplook.net/docker_production/nqpdhq/article/2ByanRUk/attachments/BellaBot_User_Manual-multilanguage.pdf)
2. [Pudu: BellaBot User Manual V1.2, BL100, BL101 and BL110 (RobotShop copy)](https://cdn.robotshop.com/media/P/Pud/RB-Pud-11/pdf/bellabot-User-manual.pdf)
3. [Pudu: BellaBot Pro Operation Guide V1.0 (RobotShop copy)](https://cdn.robotshop.com/media/P/Pud/RB-Pud-20/pdf/bellabot-pro-guide-v-1-240624.pdf)
4. [Pudu Academy: BellaBot Pro Operation Guide V1.0](https://academy.pudutech.com/en/docs/bei-la-Pro-ji-qi-ren-yong-hu-cao-zuo-zhi-nan-V1-0240624)
5. [Pudu: BellaBot User Manual, BL100, BL101 and BL102 (manuals.plus copy)](https://manuals.plus/m/b22ae3d0895c4a3eb2f767c9f8a97e51aa99a38c3d79323326b8e9c72fe50d3d)