You can program the Philips Sonicare electric toothbrush Quadpacer yourself. Easily. Just follow these steps.
Place the handle on the charger that is plugged into a live socket
Press the Dual Speed Control button briefly and note which LED lights up
Press and hold the Dual Speed Control button
Continue to hold the button while the LEDs slowly cycle through the timing interval setting options: Green LED in position 4: Programmable Quadpacer active (default factory setting). Green LED in top (5th) position: 2 1/2 Minute setting - the Programmable Quadpacer active with an additional 30-second timing interval.
To program the desired setting, release the button when the LED corresponding to your choice lights up