Take doorknob to hardware store if necessary.
How to fix french door handle.
Insert one side of the handle into the opening in the door ensuring that the stem controlling the latch is inserted in the appropriate opening in the latch.
Insert any latching mechanism in the space provided on the inner edge of the door.
Identify the screw in the doorknob collar.
Attach each handle to one of the spindle halves which are the long shafts that penetrate the door and operate the latch within.
Get an allen wrench usually 3 32 or 1 8 to use to tighten the screw on the freezer door.
If screws are already exposed proceed to next step.
Where the door has expanded carefully shave off strips of the wood.
Use a wood chisel and hammer to carefully remove the vertical piece of casing along the side of the.
Place a plastic washer around each spindle half before sliding the.
If the door handle is not working as it should tighten the screws to determine whether this will solve the problem.
Open the door at the side where the jamb will be shimmed and stabilize it with a doorstop.
Take the handle off of the door.
Look around the collar on the doorknob and identify the set screw that is threaded into the collar.
If the knob or rose plate itself is screwed on with threading on the hardware there will be no screws to expose.
Most freezer door handle allen screw sizes are 3 32 or 1 8 you may also need a 10 mm socket and ratchet next open the freezer door side that has the loose handle or damaged handle.