Product Manual

Operating Instructions
28
Troubleshooting Chart
Problem Possible Causes
Resolutions
Excessive oil
consumption
(Continued)
4. Oil level too high 4. Drain oil then check at sight glass for
proper level
5. Lubrication system leak 5. Check all pipes, connections and
components. Repair as needed
6. Low minimum pressure in
separator tank
6. Minimum pressure should be 65 psi
Pressure relief valve
opens repeatedly 1. High pressure shut-down preset
is improperly programmed
1. Reprogram high pressure safety setting to
155 psi (10.7bar)
2. Defective pressure relief 2. Replace valve.
3. Clogged air/oil separator filter 3. Replace filter
AL02-Motor Overload
Fault
1. Motor overload protection tripped
1. Allow unit to cool; reset overload protection
2. Bad wire connections causing
over amperage of motor
2. turn unit off and check unit for loose or bad
connections
3. Overload relay set too low 3. Check the overload setting on relay
Water in air system
1. Defective moisture
separator/Drain trap
1. Inspect & clean if required; Replace
separator if necessary
2. Trap drain or drain piping
blocked
2. Inspect & clean
3. After cooler core dirty 3. Inspect & clean
4. No after cooler on unit 4. Install after cooler
5. Drain line/drip leg incorrectly
installed
5. Slope drain line away from trap; Install drip
leg
6. No refrigerated or desiccant
dryer in air system
6. Contact Eaton Compressor
Excessive noise level
1. V-belts slipping 1. Adjust belt tension or replace belts
2. Compressor defective (Bearing
failure or rotor contact)
2. Replace bearing; Contact Eaton
Compressor
3. Enclosure panels not in place 3. Install enclosure panels
4. Loose component mounting 4. Inspect & tighten
5. Shipping brackets in place 5. Remove shipping brackets