STEMCO Aeris Inflation System Troubleshooting - Manual (Page 14)

Aeris System Troubleshooting
Sept 2013
Page 14 of 18
Condition: Light stays on after 3 flashes at power up (flashing or steady Driver Warning Lamp) and does
not go off
Possible causes: System has detected air flow or has no air supply (check air supply to trailer before
continuing)
Verify air supply valve on the
outside of the control box is in
the open position (See figure 1
on page 18)
Open Valve
Recheck
pressure
in all tires
Complete
Power on Test
again
Check pressure
regulator setting
inside control box.
Is regulator set to
desired pressure?
Low tire
found?
Set to desired
level
No problem
found
No
Yes
No
Yes
Yes
No
Repair
leak in tire
Complete
Power on Test
again
Complete
Power on Test
again
Inspect all air
lines, fittings
and hoses for
leaks
Repair leak
Leak
found?
Yes
No
Complete
Power on Test
again
Complete
Power on Test
again