The touchpad will not start or stop the unit.
1. Unplug the touch pad and wire, then trigger the beam by passing a hand infront of it. If the clock starts when the wire is unplugged, but does not start when the wire is plugged in, the wire or the touchpad is worn out.
2. If the clock still does not start or stop, move the the next step.
The unit beeps, but does not start or stop the clock.
1. Replace the batteries with a 9 volt alkaline battery or if the current battery is new, remove the battery for 30 seconds then replace.
2. If the unit still does not work, it will need to be repaired.