Troubleshooting Guide - Delta Commercial 300 T4128ARI Serie Instructions D'installation

If the faucet is not working properly, first check for error codes by doing the following:
Press and hold TOGGLE (white pushbutton on right hand side) button for 5 seconds. Once you see the "E", press TOGGLE
button to cycle through and note the error codes:
● E01 - Related to Sensor
● E03 - Related to Controller
● E06 - Related to power (replace batteries)
Check to ensure faucet was installed
according to the M&I sheet.
Test for operation. If unit does not
operate:
Step 1
If faucet shuts off due to interference:
Faucet makes beeping noise.
Step 2
The faucet stops working. No water
flow. Check the function of the solenoid.
Step 3
If faucet does not activate or works
erratically;
Step 4
If after completion of all above steps, the valve still does not function correctly; Call Technical Service for further assistance at 1-800-387-8277
Step 5
(Canada) or 1-877-509-2680 (U.S.A.).
ADDITIONAL REPAIR PARTS
061256A
36" Sensor Cable Extension
TRANSFORMERS
060704A
Transformer 110 to 24 VAC 20VA
up to 5 Electronic Valves
060771A
Transformer 110 to 24 VAC 40VA
up to 10 Electronic Valves

TROUBLESHOOTING GUIDE

Note: See attached M&I, pages 1 to 3.
Check lens to be sure it is not blocked with foreign matter. Remove
vinyl scratch protector from sensor, if present.
Check to be sure power cable is properly secured in fitting.
Check to be sure batteries are fresh and properly installed.
Check two wires to solenoid to be sure they are connected correctly.
Check to be sure water supply is turned on.
When the faucet detects an object for longer than 45 seconds, it will
automatically shut off until the object is removed.
Once the object is removed for at least 1 second, the faucet will
operate normally.
Sensor blocked by dirt or water.
BATTERY POWERED Faucet beeps twice and LED blinks when
turning off: indicates batteries are low and need to be replaced (1500
cycles or 2 weeks left).
Faucet beeps continuously when hands in front of spout, LED blinks
and no water. Faucet locked out because batteries are too low.
HARDWIRE Check voltage from converter and transformer. It should
be approximately 6.4 volts DC coming from converter to the driver board.
The solenoid should "click" when activated.
If there is a This indicates that both the sensor and the solenoid are functioning.
clicking sound;
Ensure inlet screen on solenoid is not plugged with debris.
Check the incoming water supply. Turned on, proper pressure and
volume, etc.
If no Check for a pressure lock between the mixing valve and the solenoid.
clicking sound; Turn off the water supply and undo the connection to the inlet of the
solenoid, this will eliminate any built up pressure.
Then activate sensor and test fire the solenoid.
If after above there is no clicking sound;
Defective solenoid.
Check for electrical interference.
Check for interference from other electrical devices within close
proximity to the spout or battery box. Devices such as other infrared
devices, transformers, etc.
w w w . s p e c s e l e c t . c o m
● E02 - Related to Sensor
● E05 - Related to Solenoid
● E07 - Related to power (replace batteries)
060680A
48" Solenoid Cable Extension
061210A - Cold
061209A - Hot
SS Plate, Controller & Sensor
(Controller set to 8" range,
10 second duration - settings
are adjustable)
Page 5
Clean sensor window.
Replace batteries.
Replace batteries.
Replace Hard Wire
converter 060683A, if
required.
Clean as required.
Correct as required.
Replace 060671A
Solenoid.
Call Technical Service if
any such conditions
found.
060671A
Solenoid & Washers
060684A
Square Battery Holder
(4 "C" cell batteries)
212290 Rev. A