Bradley Brand Furniture TBD3103 - Manual (Page 20)

TDB3103, WF3203 Installation
20 3-5-08 Bradley Corporation • 215-1332 Rev. T; EN 08-009
I.R. Module Assembly Components S50-367
IR Actuator
WINDOW
269-1351
Troubleshooting Adaptive IR
There is a LED diagnostic light built into the small black box housing the circuitry for the sensor.
Below is a list of what the signals from the LED mean. Use this list to troubleshoot the sensor.
1. LED not illuminated — no power is getting to the sensor. Check for power at the 110 VAC wall
outlet and from the wires from the 24 VAC transformer. If there is 110 VAC power at the wall
outlet, but no power from the transformer, touching the leads from the transformer while plugged
in or a power surge may have burned out the transformer. Add surge protection at the outlet if a
power surge is suspected and replace the transformer. If 24 VAC power is being supplied from
the transformer, check for loose wire connections and check connections against the wiring
diagram (see Figure 9b).
2. Fast Blink — Sensor is detecting something in its view and water should be on (power is being
sent to the solenoid). If the sensor is blinking fast, the water is turning on and there is nothing in
the detection area, disconnect the power for at least 30 seconds. This will allow the sensor to
loose it’s memory and be reset. Reconnect the power and wait 2 full minutes to allow the sensor
to relearn the environment before attempting to activate. The sensor may take up to 8 minutes to
readjust if it activated during those 2 minutes. If the condition persists, make sure the LEDs at
the ends of the sensor cables are pushed all the way in to the backs of the lenses. If the sensor is
blinking fast and the water is not turning on, go through the troubleshooting guide for the
solenoid.
3. Slow Blink — Sensor is detecting something in its view and the water is off (power is not being
sent to the solenoid). The sensor has detected a stationary object in its view for more than 30
seconds and shut off power to the solenoid valve. Remove the object, if it is still in the bowl, and
repeat the part of Step 2 for resetting the sensor.
4. Blinking SOS (3 short, 3 long, 3 short) — The sensor has detected an overload condition and
shut down to protect it's circuits. Check connections against the wiring diagram. This condition
usually means the solenoid valve is not properly wired. After correcting any wiring error, it will
be necessary to restart the sensor by repeating the part of Step 2 for resetting the sensor.
If you need further assistance, please call your local Bradley Representative. Please call us at
1-800-Bradley if you need the name and telephone number of your local Bradley Representative.