BLHeli ESC Error: “Found 2 ESC with similar unique ID numbers”

by Oscar

If you get error in BLHeliSuite “Found 2 ESC with similar unique ID numbers”, here are the possible causes and solutions.

Some of the links on this page are affiliate links. I receive a commission (at no extra cost to you) if you make a purchase after clicking on one of these affiliate links. This helps support the free content for the community on this website. Please read our Affiliate Link Policy for more information.

#1 Signal Wires Shorted

ESC signal wires are shorted/touching each other.

If you are using standalone (separate) ESC’s, check ESC signal with a multimeter to confirm (in continuity mode). If you are using 4in1 ESC, check the header pin connector, and make sure the pins are not bent and shorted.

#2 Motor Remapping

Wrong motor remap config. Try to reset resource for the motor pins and try again.

#3 Motor Signal Shorted to Frame

It’s possible that your ESC signal might have shorted to the carbon fibre frame, or metal standoff.

Leave a Comment

By using this form, you agree with the storage and handling of your data by this website. Note that all comments are held for moderation before appearing.