Life Cycle Testing:

• No or delayed hot water flow.
• Water hammer during use of hot water.

Cleaning procedure:

1. Turn off water supply to hot water heater.
2. Disconnect the electrical connector from the water valve
3. Remove 4 cap screws from valve body
4. Remove cover from valve. (Do not lose spring)
5. Remove spring and diaphragm assembly from the valve body.
6. Using a paper clip or straight pin clean the port in the diaphragm assembly.
7. Using a paper clip clean the port in the valve body.
8. Using a 1/2" wrench, remove the nut from the coil.
9. Remove the washer, O-Ring, and coil.
10. Using a 11/16" wrench remove the stem assembly from the cover.
11. Using a paper clip clean the ports in the cover.
12. Using a cotton swab, clean the surface of the shuttle.
13. Reinstall and tighten stem into cover.
14. Reinstall the coil, O-Ring, washer and nut. Tighten the nut.
15. Reinstall diaphragm assembly and spring. Orient the port as shown.
16. Cover assembly and tighten the 4 cap screws.
17. Reinstall the electrical connector.
18. Open water valve and inspect for leaks.