LED flashers glow or stay on: use bulbs in System 11 flasher sockets

System 11 flasher circuits have warming resistors that pass a little current to the flashers all the time. That isn't enough to light an incandescent flasher, but LED flashers glow or appear stuck on. Use incandescent bulbs in the flasher sockets; LEDs are fine for controlled lamps.

Systems

• Williams System 11

Games

• High Speed

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Source: Pinball Repair help group!! (Facebook group)