I bought a new generation on MotionSense faucet, can I use my old Moen AC adapter?
Verify your faucet by identifying the control box under your sink
No -- The new adapter is not compatible. Moen kit 169031 will be need. Only a Moen brand power supply will work.
In addition, please note that when using the AC Adapter, we recommend plugging it into an outlet that is not controlled by an ON/OFF switch. If the AC Adapter is plugged into the wall outlet designated for a garbage disposal, oftentimes that outlet is controlled by a switch, thereby not allowing the MotionSense faucet to function when the switch is in the OFF position.