Simplex 900: Combination Chamber & Button Lock Issues including Old Style Reset Teardown

Finally got around to doing this on the Simplex 900’s we replaced a couple months ago due to “codes not working” We are going to strip one down to show the issues and try to reset the old style combination chamber. Make sure and check out the “Reversing Latch and Install” video here:    • Simplex 900 Reversing Latch & Installation