Hans Grohe Talis S 32111XX1 Installation Instructions Manual page 8

Battery replacement -- models 32110XX1 /
32111XX1 only
If the LED in the sensor window flashes, the battery is low,
but the faucet can still be used.
If the LED lights continuously, the battery must be changed
before the faucet can be used.
Remove the four screws and the battery pack cover.
Remove the old battery (1). Install the new battery (2).
Reinstall the battery pack cover.
2
1
Wait 30 seconds (1).
Activate the faucet by placing a hand in front of the
sensor (2).
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