A flipper does not move at all.

Fliptronic flipper dead: check the button first

Cause: The cabinet flipper button switch is not closing.

Checks

• In the switch edges test, press the button; its dot among the flipper grounded switches should turn into a square.
• If nothing shows, ground the button contacts with a test lead and watch the display again.
• Ground the button input at J805 (test point 6) to check the flipper board input.

Fix

• Clean and adjust the button contacts, or replace the switch.

Systems

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

Related tips

• How Fliptronic flipper drive works
• Flipper energises at power-on (Fliptronic)
• Flipper fires then falls straight back
• Earlier WPC flipper controller board connectors
• How Fliptronics flippers work
• Flipper button registers but the flipper does not move
• Fliptronics: flipper will not hold up (flutters)
• Upper flipper button wired but not used on some games

Source: Pinball Machines: How They Work & Troubleshooting, Norbert Snicer