The following article details how to modify a Guardian Model 628 to operate efficiently in an RF environment.

ARTICLE: Garage Door Opener RFI Modification

The following article details modifications made to a Guardian Model 628 to operate unimpared in an environment with radio frequency interference. Please follow the link below for full details.


2 Comments
  1. Brian's picture
    Jan 15, 2024

    Please send an email with your contact informaotion to my attention at info@adhguardian.com and someone from our engineering department will contact you.  Thanks

  1. Rick Kourey's picture
    Jan 14, 2024

    I am looking for an RFI remedy for my three Guardian 628 garage door openers. When I run 100 watts no problem. But when I run 600 to 1500 watts, the door openers go up and down and then remain open.

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