Eaton PRS0100001, User Manual

Page: 35 / 43

Operating Instructions
35
Compressor shuts down under
compression mode/while load-
ing
(Continued)
Line pressure exceeds upper
preset safety limit
Air pressure is too low
2. Loss of Control Voltage
3. Low incoming Voltage
2. Reset-Press Enter button on controls. If
trouble persists, check line pressure
does not exceed maximum operating
pressure of the compressor (specified on
nameplate)
3. Wire size for power supply too small.
Contact local power company.
1. Check pressure sensor for leaks and/or
air restriction. Repair as needed.
2. Check for damage to diaphragm and
contacts. Replace if necessary.
3. Replace valve
4. Check that sump pressure is exhausted
to the atmosphere when machine is
unloaded. Repair or replace if necessary
1. Control system leak causing
pressure signals to be lost.
2. Defective pressure sensor
3. Defective solenoid valve
4. Defective blow-down valve
1. Decrease air consumption or increase
number of compressors in system
2. Clean or replace air filter
3. Disassemble and clean suction valve.
Apply lubricating oil to valve
4. Adjust pressure regulator to proper
settings. Refer to PLC manual
5. Disassemble and clean solenoid valve.
Replace if needed. Check for proper
voltage – 220V required
6. Check maintenance parameter. Make
sure operating time does not exceed
preset limit. Reset Maintenance Timer –
see page 17
7. Add oil
8. Adjust belt tension
9. Check compressor & complete air
system for air leaks
10. Check pressure settings in PLC; make
sure unload pressure is set properly
1. Air demand too high
2. Blocked air filter
3. Suction valve not opening properly
which reduces incoming air flow
4. Improperly adjusted pressure
regulator
5. Load solenoid not operating
properly
6. Improper maintenance/Failed to
reset hours
7. Low oil level
8. V-belts slipping
9. Air leak
10. Compressor running in unload
mode
Problem Possible Causes Resolutions