No Power in the Unit

If there is no power in the unit of your PULSE 500 Series door operator, follow these steps:

Check the fuse on the junction box:

Check incoming AC voltage:

  • If the Fuse is good but there are no voltages, check incoming voltage 120V/240V AC on the drive board.

Measure DC voltage:

  • If the AC power is good, then measure DC voltage across V+ and COM on the drive board.
    If there are no voltages on the drive board, then please contact technical support for further assistance.

Related Articles

Leave feedback on this article

Need more assistance?

  Click to Chat Now

Still can’t find the information you need?

By clicking “Allow All Cookies”, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. For more information please refer to our Privacy Notice.

iControls Inc. Logo

Privacy Preference Center

When you visit, we may store or retrieve information on your browser, mostly in the form of cookies. This information might be about you, your preferences or your device and is mostly used to make the site work as you expect it to. The information does not usually directly identify you, but it can give you a more personalized web experience. Because we respect your right to privacy, you can choose not to allow some types of cookies. Click on the different consent preferences below to find out more. As a reminder, blocking some types of cookies may impact your browsing experience on

For more information, please refer to our Privacy Notice .

Manage Consent Preferences