The button shows in the switch test but the flipper stays down.

Fliptronic flipper dead though the button reads

Cause: Blown flipper fuse (no +50 V), an open coil, or a fault on the flipper board.

Checks

• Briefly ground the coil middle lug (test point 1). If nothing happens, check the fuse and coil.
• A fuse that blows a second time means a shorted coil winding or coil diode.
• If the flipper rises on its own once the fuse is replaced, the driver transistor on the flipper board is shorted.
• If grounding the middle lug works, ground the power output at J802 (test point 2); if the flipper fires there, the flipper board is likely bad.

Fix

• Replace the fuse, or the shorted coil/diode.
• Check the coil windings and solder joints for continuity.
• Repair or replace the flipper board if it fails the J802 test.

Systems

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

Related tips

• How Fliptronic flipper drive works
• Flipper energises at power-on (Fliptronic)
• Earlier WPC flipper controller board connectors
• Fliptronics: flipper button does not register in switch test
• Flipper button registers but the flipper does not move
• Checking flipper buttons and EOS switches in switch test
• Two LM339s on the Fliptronics board read the flipper optos
• Fliptronics: flipper coil gets hot after a while of play

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