Troubleshooting - Nortec Airfog Series Installation Manual

1. TROUBLESHOOTING

Part Possible Failure
Vacuum Valve Diaphragm Failure
Pilot Safety Regulator
Diaphragm Ripped
Valve Seat O-Ring
Other O-rings
Cracked Housing
Blockage
Pilot Air Damaged Diaphragm
Regulator
Stuck Closed Or Open
Pilot Water Damaged Diaphragm
Regulator
Stuck Closed Or Open
Table 1. Troubleshooting
Symptoms
Nozzle sputter.
Low output.
No output.
Nozzles sputter.
Air in water line.
Low output.
No Output.
Water drips from bonnet.
Pressure water line resulting
in heavy mist.
Could damage main
diaphragm.
No control of output.
Vacuum leak, low output, no
output.
Water leaks out.
Vacuum leak or water dripping
from valve.
Reduced output.
No output.
Loss in air pressure.
No air pressure.
Uncontrolled air pressure.
Unable to adjust pressure.
Loss in water pressure.
No water pressure.
Uncontrolled water pressure.
Unable to adjust pressure.
Solution
Replace defective
component.
Repair regulator using
repair kit.
Replace o-ring, rebuilt
vacuum valve.
Replace.
Replace damaged
component.
Clean.
Repair.
Disassemble and clean.
Repair.
Disassemble and clean.
10-60
Page 42
2008-04-11