If you find the dial on your EKG is sticky or not rotating as smoothly as it once was, there's a good chance something has become stuck beneath it. Fortunately, you can remove the knob and clean underneath, removing what is obstructing the path of the dial.
1. With a flat object (butter knife, flathead screwdriver, etc.), slowly pry between the dial and the base. Once the flat object is in place, gently turn it until you feel the dial give.
2. Remove the dial to reveal the internal spring (note how the spring is positioned).
3. Remove the spring and clean the dial and base with a cotton swab dipped in rubbing alcohol.
4. Place the spring back in place and line up the bottom of the dial to re-attach it to the base.
If you have any questions or concerns about this procedure, please reach out to us using the "Submit Request" link at the top right of this page and we'd be happy to help.