Gardner Denver VS80A - Page 84

13-18-609 Page 83
15-4
SYMPTOM
POSSIBLE CAUSE
REMEDY
Excessive oil at
intake filter area
1. Intake valve seals leaking. 1. Check location ventilation and
improve if necessary. Inspect, repair
or replace valve.
2. Slow intake valve poppet
action
2. Inspect poppet and guide surfaces.
Replace if necessary.
3. Feed 3-way solenoid valve
malfunction
3. Repair, clean or replace valve.
Oil carryover
1. Overfilling oil separation
vessel
1. Drain excess oil from system.
2. Clogged oil return line orifice 2. Inspect and service.
3. Clogged oil return line strainer 3. Inspect and service.
4. Clogged, broken, or loose oil
return line fittings
4. Inspect and tighten or replace.
5. Ruptured oil separator
element.
5. Replace element.
6. Loose assembly 6. Tighten all fittings and gaskets.
7. Foam caused by use of
incorrect oil
7. Use Gardner Denver AEON 9000SP
oil only.
8. Minimum pressure valve
malfunction – discharge
pressure below 80 psig
8.
Repair or replace. Inspect, adjust or
replace regulator.
Low Discharge
Temperature
1. Oil mixing valve stuck on full
cooler flow mode
1. Check 24 Vdc power feed to servo.
Check ModBus connection to servo.
Check servo-to-valve coupling.
Check rotation of ball valve.
2. Short load/unload cycles do
not allow oil to reach normal
operating temperature
2. Adjust “Auto Timer” in AirSmart
controller to at least 5 min value.
This action forces package to
operate at min speed for set time
before stopping.