Bradley Smoker MG-2/BIR3 - Manual (Page 16)

Express® Lavatory System - MG Series with Battery Infrared Control
MG-2/BIR3
Installation Instructions
16 8/23/07 Bradley Corporation • 215-1510 Rev. D; ECN 07-815
Troubleshooting BIR3 Components
CAUTION: Turn off water supplies to unit before troubleshooting.
Problem: An individual operating station drips and fails to shut off.
Cause: There is debris trapped between the diaphragm and the valve seat.
Solution: Remove debris between diaphragm and the valve seat.
Disconnect the plug from the battery to the circuit board of the problem valve. Remove the three #8 Phillips-head
screws that hold the solenoid valve assembly together. Be careful not to lose the armature or spring (see Figure 13
on page 17). Remove the diaphragm. Remove any particles that are trapped between the diaphragm and the valve
seat. Rinse off the diaphragm and inspect for damage. Make sure the center orifice and both small side orifices are
open. Reassemble in reverse order, being careful not to overtighten the Phillips-head screws or you may crack the
plastic valve body. Tighten until the armature plate makes contact with the plastic body. Reconnect the battery plug
per diagram on page 11. Turn on water supplies to the unit.
Problem: An individual operating station fails to turn on or off.
Cause: A dead or faulty battery.
Solution: Test the station to determine cause and replace battery if required.
Disconnect the plug from the battery to the circuit board of the problem valve. Disconnect the plug from the battery
to the circuit board of an adjacent valve. Connect the battery plug from the adjacent working valve to the problem
valve. Wait for ten seconds. Activate the problem station’s sensor ten times. The station should turn on. If the station
turns on, and cycles normally, replace the battery.
Cause: Faulty sensor eyes.
Solution: Test station to determine cause; replace sensor eyes if
required.
Disconnect the sensor cable from the circuit board of the problem valve.
Disconnect the sensor cable from the circuit board of an adjacent working
valve. Connect the sensor cable from the adjacent working valve to the
problem valve. Activate the problem station’s sensor. The station should turn
on. If the station turns on and cycles normally, replace the sensor eyes.
Cause: Faulty solenoid valve.
Solution: Test station to determine cause; replace solenoid valve if
required.
Remove the screw, circuit board and standoff from the problem valve.
Remove the battery holder. With a good working battery, briefly contact the
solenoid valve directly with the battery as shown in Figure 12a. The contact
should cause the valve to open. With the battery holder removed, briefly
contact the solenoid valve with the battery in the position shown in Figure
12b. This should cause the valve to close. If the valve does not operate when
directly contacted with a good battery, and the solenoid valve has already
been cleaned as outlined at the beginning of this troubleshooting section,
replace the solenoid valve.
If problems persist:
Pass your hand in front of the problem station, while at the same time looking
to see if the indicator light on the circuit board flashes (the indicator light is
located near the hole in the circuit board where the standoff is mounted). If it
does not flash, and the battery and sensor eyes have already been tested as
outlined above, the problem may be with the circuit board. Make a note of
the numbers printed on the circuit board, then contact your Bradley
representative for assistance.
CLOSED VALVE
Figure 12b
OPEN VALVE
Figure 12a