# 4 in 1 ESC caught fire!

Source: https://forum.modalai.com/topic/2958/4-in-1-esc-caught-fire
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Tags: esc
Posted: 2023-12-15 20:56:32 UTC by Guest
Replies: 3 · Views: 1146

## Moderator (ModalAI staff) · 2023-12-15 21:07:22 UTC

@AP123 

We are really sorry to hear that. Which ESC were you testing and with what motors and propellers?

You can burn out an ESC by connecting motors that are too large for that ESC. Can you please send a picture of your setup?

## Reply by Alex Kushleyev (ModalAI staff) · 2023-12-16 00:18:29 UTC

@AP123, can you please provide some details of your test:

- Motor and propeller used. Did you calibrate with propeller mounted?
- Which esc you are using (Mxxxx number)
- which esc firmware was installed?
- Input voltage. Battery or power supply
- What test was actually run? Do you have exact command?
- Do you have output of the calibration script?
- did you load any params on the esc before the test?
- Can you describe the behavior in more detail. - Specifically at which point of the test the ESC started misbehaving - beginning of the test, middle, or end. What was the current drae reported by the test script
- Can you send a picture of the esc with damage?

Thank you

Alex

## Reply by Alex Kushleyev (ModalAI staff) · 2023-12-18 19:48:58 UTC (in reply to Alex Kushleyev)

Just following up.. If you were testing using PX4, then you may have useful information in the PX4 log, you could upload it to https://review.px4.io/ (if you are comfortable sharing it publicly) or you can email it to our customer support ( I believe you contacted us via email already about this issue as well)

## Reply by Alex Kushleyev (ModalAI staff) · 2023-12-20 18:04:09 UTC (in reply to Alex Kushleyev)

@AP123 please contact us before testing a replacement ESC - we need to figure out what happened and prevent such failure in the future. I am working on enabling thermal protection on the ESC, which will reduce power and shut off ESC in order to prevent catching on fire. Before you test again, I would like you to use the updated firmware with such protection.

Thank you

Alex