TM 10--3510--221--24
0047 00--1
TYPICAL WATER CONTROL VALVE NOT OPENING/CLOSING
0047 00
THIS WORK PACKAGE COVERS:
Troubleshooting Typical Water Control Valve Not Opening/Closing Fault
INITIAL SETUP:
Maintenance Level
Materials/Parts
Unit
Tools and Special Tools
Equipment Conditions
Tool Kit, General Mechanics (Item 1, WP 0272 00)
Power must be applied at main control
enclosure (WP 0010 00).
NOTE
Pressure in air system must be maintained above 80 psig while performing this procedure.
All water control valves are normally closed when de--energized except the steam eductor
bypass valve (FV114).
1. Use maintenance menu to open suspect water control valve.
Does valve open?
YES Go to step 2.
NO Go to step 3.
2. Use maintenance menu to close suspect water control valve.
Does valve close?
YES Return to normal operation.
NO Go to step 3.
3. Open door on main control enclosure. Verify SW1 and SW2 are ON.
4. Using maintenance menu attempt to open suspect water control valve while monitoring LED on associated
solenoid valve.
Does LED come on?
YES Go to step 5.
NO Go to TYPICAL DC OUTPUT SIGNAL FAULT (WP 0106 00) to check operation of solenoid
valve.
5. Push in manual operator on solenoid valve associated with suspect water control valve.
Does water control valve open?
YES Replace solenoid valve (WP 0209 00).
NO Go to step 6.
6. Disconnect tube from to top port on solenoid valve associated with suspect water control valve.