Labconco Protector XLE Fume Hoods 9970801 - Manual (Page 35)

Chapter 8: Troubleshooting
Product Service 1-800-522-7658 31
PROBLEM
CAUSE CORRECTIVE ACTION
Service valves no
longer operate Faulty building
supply. Inspect building supply shut off valves
and appropriate pressures below 40 PSI.
Valve no longer
operates. Replace valve and check for leaks.
Supply line or outlet
line has leaks. Inspect line for leaks and fix any leaking
plumbing connections.