How do I change the panels in my large PlexiDor dog door?

The PlexiDor panels are sturdy and will not require replacement often, but after years of enthusiastic use and maybe even chewing, new panels will help the door look and work like new. The springs must be removed to replace the panels, and this is a good opportunity to replace these as well.

Remove the interior frame from the house door or wall. This is easy: just unscrew the four retaining screws in the frame and slide it out.

Unscrew and remove the spring hoods and spring assemblies. Instructions are available here.

• Slide the panel out of the frame.
• Insert the new panel in the frame, bottom pivot first.

Make sure the 0.094 gray nylon thrust washer is in place between the bottom of the panel and the aluminum frame.

• Replace the spring mechanism. Make sure you follow the instructions, so the springs are charged, or they will not work.
• Check that the panels open and close like they’re supposed to, and put the door back in your house door or wall.

Brand new panels with brand new weather seal can seem like an invitation to dogs who like to chew. It’s a good idea to smear the edges with “Bitter Apple” – a cream available in most pet stores.