Welbilt KOLPAK - Compressor Troubleshooting

36
Problem
Possible Cause
Corrective Action
Compressor loses oil
Lack of refrigerant
Locate and repair leak, recover, evacuate
and recharge
Excessive compression ring blow-by
Replace compressor
Refrigerant flood back
Maintain proper superheat at compressor
Improper piping or traps
Correct piping
Compressor thermal protector switch
open
Operating beyond design
Add facilities so that operating conditions
are within allowable limits
Discharge valve partially shut
Open valve
Dirty condenser coil
Clean coil
Overcharged system
Correct charge
Notes: