Troubleshooting – Nortec AIRFOG Series User Manual
Page 38

34 | AirFog Installation Manual
Troubleshooting
Part
Possible Failure
Symptoms
Solution
Vacuum Valve
Diaphragm Failure
Nozzle sputter.
Low output.
No output.
Replace defective 
component. 
Pilot Safety Regulator 
Diaphragm Ripped 
Nozzles sputter. 
Air in water line. 
Low output.
No Output. 
Water drips from bonnet. 
Repair regulator using 
repair kit. 
Valve Seat O-Ring
Pressure water line resulting 
in heavy mist. 
Could damage main 
diaphragm. 
No control of output.
Replace o-ring, rebuilt 
vacuum valve. 
Other O-rings
Vacuum leak, low output, no 
output. 
Water leaks out.
Replace.
Cracked Housing
Vacuum leak or water dripping 
from valve. 
Replace damaged 
component. 
Blockage Reduced
output.
No output.
Clean.
Pilot Air 
Regulator 
Damaged Diaphragm
Loss in air pressure.
No air pressure.
Uncontrolled air pressure.
Repair.
Stuck Closed Or Open
Unable to adjust pressure.
Disassemble and clean.
Pilot Water 
Regulator 
Damaged Diaphragm
Loss in water pressure. 
No water pressure. 
Uncontrolled water pressure.
Repair.
Stuck Closed Or Open
Unable to adjust pressure.
Disassemble and clean.
Solenoid Valve 
 
Burnt Coil
Valve does not activate.
Replace.
Blocked
No pressure leaving the valve.
Clean.
Stuck Closed Or Open
Dirty plunger.
Clean and install 
external filters. 
Timer
Wrong Timer Settings
System will not come on.
System only stays on for a few 
seconds. 
Reduce the off cycle.
Increase the on cycle.
Burnt Timer
The timer lights are not on. 
Burnt smell from inside the 
control panel. 
Replace.
Panel 
Regulators 
 
Damaged Diaphragm
Loss in air pressure.
No air pressure. 
Uncontrolled air pressure. 
Repair.
AFE Nozzle
Stuck Cleaning Needle
Nozzle does not clean itself.
Lubricate seal and shaft 
of needle. 
Nozzle Drips
Water on the floor.
Replace damaged
o-ring on end of needle.
