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Problem
Indicator
Faucet doesn't
Driver board display
work during normal
doesn't illuminate.
conditions.
Faucet doesn't work
Driver board display
during power outage.
doesn't illuminate.
Faucet does not
Unit doesn't calibrate. Noisy ground.
operate.
Troubleshooting / Dépannage
Cause
1. Verify wire connection as per "Wiring Diagrams / Schémas de câblage" on
5.
2. Connect the hardwire converter (or plug-in power supply) directly to the driver
board.
i. If driver board display illuminates, replace the battery backup.
ii. If driver board display does not illuminate:
Insufficient voltage
input.
3. Measure the battery voltage across the battery holder contacts
(1). If voltage is below 5V replace batteries.
4. Verify the driver board is getting power by connecting the battery
holder directly to the driver board;
i. If driver board display illuminates replace the
ii. If driver board doesn't illuminate replace the driver board. Refer to the
1. Verify wire connection as per "Wiring Diagrams / Schémas de câblage" on
5.
2. Measure the battery voltage across the battery holder contacts
(1). If voltage is below 5V replace batteries.
Insufficient voltage
3. Verify the driver board is getting power by connecting the battery
input.
holder directly to the driver board;
i. If driver board display illuminates replace the
ii. If driver board doesn't illuminates replace the driver board. Refer to the
1. Disconnect hardwire converter and connect direct to battery pack.
i. If faucet calibrates - Refer to the faucet M&I for trouble shooting instructions
Page - 6 of 8
213775, Rev. A
Solution
a. Plug-in Power Supply Models - Replace the plug-in power supply.
Refer to the faucet M&I for instructions and repair part numbers.
b. Hardwire Models - Refer to the faucet M&I for trouble shooting
instructions.
backup.
faucet M&I for instructions and repair part numbers.
backup.
faucet M&I for instructions and repair part numbers.
of the hardwire power connections.
page
1
battery
page
1
battery
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