The motorized diverter's down-position switch stops registering once the playfield is lowered, but works normally in switch test with the playfield raised.
Diverter down switch works with the playfield up but not down: adjust the switch lever
Cause: The microswitch lever had enough play that, with the playfield down, the mechanism could shift and release the switch button.
Checks
- Watch the switch in switch test while lowering the playfield and moving the mech by hand.
- Rule out pinched wiring, a loose ground and loose node board connectors behind the playfield.
Fix
- Remove the motor mechanism and bend or adjust the switch lever so the plate presses the switch firmly when it comes down.
Games
Source: Pinball Repair help group!! (Facebook group)