Terreon® Quadra-Fount™ Wall-Hung Washfountain with Adaptive Infrared Control
Installation Instructions
MF2949/IR
13
Bradley Corporation • 215-1249 Rev. H; EN 03-045
9-15-2003
Solenoid Valve Troubleshooting
CAUTION: Turn off electrical and water supplies to unit before troubleshooting.
Problem:
An individual operating station fails to shut off and drips.
Cause:
There is debris trapped between the diaphragm and the valve seat.
Solution:
Remove debris between diaphragm and the valve seat.
1. Disconnect the wires to the appropriate solenoid valve by firmly pulling the fully insulated disconnects
(not the wires) from the coil located on top of the valve.
2. Loosen the screw on top of the coil and remove.
3. Using a small wrench, loosen the bonnet nut, unscrewing counterclockwise, and gently tip forward
to remove from the valve body. Be careful not to lose the armature or spring.
4. Remove the diaphragm. Remove any particles that have been trapped between the diaphragm
and the valve seat. Rinse off the diaphragm and inspect for damage. Make sure both orifices are
open.
5. Reassemble in reverse order. Do not overtighten the bonnet nut or you may crack the plastic
valve body. Hand tight plus 1/8 turn is sufficient.
6. Reconnect the wiring per Figure 9 on page 9.
Problem:
An individual operating station fails to turn on.
Cause:
A failed coil for the valve, or loose electrical connection to the terminal.
Solution:
Test the station to determine cause.
1. Disconnect the wires from the coil of an adjacent valve. Disconnect the wires from the problem
valve and reconnect to the adjacent valve.
2. Turn on electrical and water supplies to the unit. Pass your hand in front of the sensor of the
problem station, and the adjacent station should operate.
If the adjacent station operates and cycles normally, replace the coil on the problem valve.
If the adjacent valve fails to turn on, inspect the wires from the sensor cable and preform the
following:
•
make sure there are no breaks and that the fully insulated disconnect terminals are firmly
crimped in place;
• turn off electrical and water supplies;
• reconnect to the adjacent valve and turn on electrical and water supplies to the unit;
• pass your hand in front of the sensor. If the station still fails to turn on, replace the sensor.