Hussmann LBN - Troubleshooting Common Issues; Compressor Runs Continuously Too Warm; High Head Pressure Issues; Warm Storage Temperatures

TROUBLE SHOOTING
SYMPTON
PROBABLE CAUSE (S) POSSIBLE SOLUTION
Compressor runs
continuously product too
warm
1. Short of refrigerant 1. Leak check, change
drier, evacuate, and
recharge
2. Inefficient compressor 2. Replace
3. Dirty condenser 3. Clean
4. Evaporator oil logged 4. Blow oil out of
evaporator
High Head Pressure 1. Cabinet location too
warm
1. Relocate cabinet
2. Restricted condenser
air flow
2. Clean condenser to
remove air flow
restriction
3. Defective condenser
fan motor
3. Replace
4. Air or non-
condensable gases in
system
4. Leak check, change
drier, evacuate, and
recharge
Warm storage
temperatures
1. Temperature control
not set properly
1. Reset control
2. Short of refrigerant 2. Leak check, change
drier, evacuate, and
recharge
3. Cabinet location too
warm
3. Relocate
4. Too much refrigerant 4. Change drier,
evacuate, and recharge
5. Low voltage.
Compressor cycling on
overload
5. Check power
6. Condenser dirty 6. Clean
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