A flipper does not respond to its button on a game with Type 2 flipper opto boards.

Flipper dead because the Type 2 plastic interrupter warped

Cause: The plastic interrupter on the flipper button has warped and no longer clears the opto slot.

Checks

• Watch the flipper button switch in switch test while pressing and releasing the button.
• Look at the interrupter blade as the button moves and check it passes cleanly through the slot.

Fix

• Straighten or replace the warped plastic interrupter.
• Use an interrupter that matches the board type; Type 1 and Type 2 parts do not swap.

Systems

• WPC DCS
• WPC-Security (WPC-S)
• WPC-95

Related tips

• Type 1 and Type 2 flipper opto boards
• Fliptronic flipper dead: check the button first
• One flipper dead and its button fails switch test: dirty flipper button opto board
• Fliptronic flipper dead though the button reads
• Flippers weak from the buttons but fine from the triggers: opto board headers
• Checking flipper buttons and EOS switches in switch test
• Fliptronics flipper does not work: test the flipper opto board
• Moving the spare opto on a flipper opto board (two-flipper games)

Source: Repairing Williams/Bally WPC Pinball Games from 1990 to 1999, Part Three, Clay Harrell (pinrepair.com)