Troubleshooting Chart - Ingersoll Rand VTR20 Manuel De Maintenance

Troubleshooting Chart

Symptom
Compressor runs hot
Interstage pressure relief valve pops
Air leaking from unloading solenoid
valve when unit is running
System does not alternate
(Duplex units only)
(cont'd)
Possible Cause(s)
1. Improper flywheel rotation
2. Defective compressor valves
3. Dirty air filter
4. Dirty cylinder and/or intercooler
1. Defective compressor valves
1. Check valve stuck in open
position
2. Incorrect wiring of solenoid valve
3. Defective solenoid valve
1. Starter tripped
2. Loose wiring in alternator
3. Defective alternator
4. Defective motor
IF3163 Rev A Page 20
Corrective Action
1. Check for correct rotation
(Counter clockwise when viewed
from drive side
2. Install new valve plate assembly
3. Clean or replace
4. Clean cylinder fins and/or
intercooler
1. Install new valves
1. Replace check valve
Warning – Relieve tank
pressure before servicing
2. Check all wiring. Check for loose
or faulty wires. Check for correct
voltage
3. Replace solenoid valve
1. Reset starter. If starter trips
repeatedly, have electrical system
inspected by an electrician
2. Check and tighten all wiring
connections
3. Replace alternator
4. Replace motor