Manitowoc Ice Makers Error Codes
Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.
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E01
Unit will not start ice making cycle, control shows E01 shortly after power-up.
High Pressure Switch Trip / Refrigeration High Head Pressure
E02
Ice maker stops and displays E02, unit may start then quickly shut down.
Low Pressure / Refrigerant Suction Pressure Fault
E03
Display shows E03 and machine shuts down; may occur during freeze cycle.
Discharge Temperature Sensor Fault / High Discharge Temperature
E04
Machine displays E04 and stops; often occurs during freeze cycle or shortly after start.
Evaporator Temperature Sensor Fault
E05
E05 displayed, unit may not start or may stop mid‑cycle.
Water Temperature Sensor Fault
E06
Display shows E06, machine may not fill or may shut down during fill.
Water Level Sensor / Water Probe Fault
E07
E07 displayed, unit may not detect bin full or may shut down unexpectedly.
Bin Level Control / Ice Thickness or Bin Switch Fault
E08
E08 appears and machine stops; often associated with long freeze or harvest times.
Freeze Time Exceeded / Slow Freeze
E09
E09 displayed, unit aborts cycle during harvest or does not release ice properly.
Harvest Time Exceeded / Slow Harvest
E10
E10 displayed, unit may not start or may shut down randomly.
Control Board Communication / Internal Control Fault
E11
E11 displayed, unit may not respond to keypad or may lock out.
User Interface / Keypad Communication Fault
E12
E12 displayed, unit may not fill with water or may overfill.
Water Inlet Valve / Fill Fault
E13
E13 displayed, unit may shut down due to sump or drain issues.
Drain Fault / Sump Overfill
E14
E14 displayed, unit may not defrost properly or may have ice buildup in non‑evaporator areas.
Defrost / Anti‑Freeze Sensor Fault
E15
E15 displayed, unit may not start compressor or may shut down quickly.
Compressor Overload / Thermal Protection Trip
E16
E16 displayed, unit may not detect ice thickness correctly or may produce irregular cubes.
Ice Thickness Probe Fault
E17
E17 displayed, unit may not sense door or curtain position correctly, causing cycle faults.
Curtain / Door Switch Fault
E18
E18 displayed, unit may not detect ambient temperature correctly, affecting cycle timing.
Ambient Temperature Sensor Fault
E19
E19 displayed, unit may not detect water flow correctly, causing fill or freeze issues.
Water Flow Sensor / Flow Switch Fault
E20
E20 displayed, unit may not start or may shut down due to power issues.
Line Voltage / Power Supply Fault
Symptom
Ice cubes are oversized, fused together, or form large slabs.
Oversized or Bridged Cubes
Symptom
Ice cubes are too small, thin, or hollow.
Small or Hollow Cubes
Symptom
Ice has a bad taste or odor (chemical, musty, or metallic).
Off‑Taste or Odor in Ice
Symptom
Ice maker cycles water but evaporator does not get cold or form ice.
No Cooling / Warm Evaporator
Symptom
Ice maker frequently freezes up with solid blocks of ice around the evaporator or in the sump.
Freeze‑Up / Ice Block Formation
Symptom
Ice maker is very noisy during operation (rattling, grinding, or loud humming).
Excessive Operational Noise
Symptom
Ice maker leaks water onto the floor from under or around the unit.
External Water Leak
Symptom
Ice maker powers on but will not start a cycle (stays idle).
Won't Start Cycle
Symptom
Ice maker produces ice but bin overflows or does not stop making ice.
Bin Overfill / Bin Control Failure
Symptom
Ice maker produces ice, but ice production is significantly lower than rated capacity.
Low Ice Production
Symptom
Ice maker runs a cleaning cycle but does not seem to remove scale effectively.
Ineffective Cleaning / Descaling
Symptom
Ice maker runs but ice is wet, soft, or melts quickly in the bin.
Soft or Wet Ice in Bin
Symptom
Ice maker runs but produces no ice at all.
No Ice Production
Symptom
Ice maker starts but shuts off after a short time without making ice.
Premature Shutdown
Symptom
Ice maker trips the circuit breaker or blows fuses.
Electrical Overload / Short Circuit
Symptom
Ice maker vibrates excessively or rattles against surrounding cabinetry.
Excessive Vibration
Symptom
Ice maker will not power on at all (no lights, no display).
No Power / Dead Unit
Symptom
Ice maker's condenser fan runs constantly even when not making ice.
Condenser Fan Control Fault
Symptom
Ice sticks to the evaporator and does not drop into the bin properly.
Poor Harvest / Ice Sticking
Symptom
Visible slime, mold, or heavy scale buildup inside the ice maker or bin.
Sanitation / Biofilm Contamination
Symptom
Water leaking inside the bin, causing slushy ice or water pooling under the ice.
Internal Water Leak into Bin
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| E01 |
Unit will not start ice making cycle, control shows E01 shortly after power-up.
|
High Pressure Switch Trip / Refrigeration High Head Pressure | View Details |
| E02 |
Ice maker stops and displays E02, unit may start then quickly shut down.
|
Low Pressure / Refrigerant Suction Pressure Fault | View Details |
| E03 |
Display shows E03 and machine shuts down; may occur during freeze cycle.
|
Discharge Temperature Sensor Fault / High Discharge Temperature | View Details |
| E04 |
Machine displays E04 and stops; often occurs during freeze cycle or shortly after start.
|
Evaporator Temperature Sensor Fault | View Details |
| E05 |
E05 displayed, unit may not start or may stop mid‑cycle.
|
Water Temperature Sensor Fault | View Details |
| E06 |
Display shows E06, machine may not fill or may shut down during fill.
|
Water Level Sensor / Water Probe Fault | View Details |
| E07 |
E07 displayed, unit may not detect bin full or may shut down unexpectedly.
|
Bin Level Control / Ice Thickness or Bin Switch Fault | View Details |
| E08 |
E08 appears and machine stops; often associated with long freeze or harvest times.
|
Freeze Time Exceeded / Slow Freeze | View Details |
| E09 |
E09 displayed, unit aborts cycle during harvest or does not release ice properly.
|
Harvest Time Exceeded / Slow Harvest | View Details |
| E10 |
E10 displayed, unit may not start or may shut down randomly.
|
Control Board Communication / Internal Control Fault | View Details |
| E11 |
E11 displayed, unit may not respond to keypad or may lock out.
|
User Interface / Keypad Communication Fault | View Details |
| E12 |
E12 displayed, unit may not fill with water or may overfill.
|
Water Inlet Valve / Fill Fault | View Details |
| E13 |
E13 displayed, unit may shut down due to sump or drain issues.
|
Drain Fault / Sump Overfill | View Details |
| E14 |
E14 displayed, unit may not defrost properly or may have ice buildup in non‑evaporator areas.
|
Defrost / Anti‑Freeze Sensor Fault | View Details |
| E15 |
E15 displayed, unit may not start compressor or may shut down quickly.
|
Compressor Overload / Thermal Protection Trip | View Details |
| E16 |
E16 displayed, unit may not detect ice thickness correctly or may produce irregular cubes.
|
Ice Thickness Probe Fault | View Details |
| E17 |
E17 displayed, unit may not sense door or curtain position correctly, causing cycle faults.
|
Curtain / Door Switch Fault | View Details |
| E18 |
E18 displayed, unit may not detect ambient temperature correctly, affecting cycle timing.
|
Ambient Temperature Sensor Fault | View Details |
| E19 |
E19 displayed, unit may not detect water flow correctly, causing fill or freeze issues.
|
Water Flow Sensor / Flow Switch Fault | View Details |
| E20 |
E20 displayed, unit may not start or may shut down due to power issues.
|
Line Voltage / Power Supply Fault | View Details |
| – |
Ice cubes are oversized, fused together, or form large slabs.
|
Oversized or Bridged Cubes | View Details |
| – |
Ice cubes are too small, thin, or hollow.
|
Small or Hollow Cubes | View Details |
| – |
Ice has a bad taste or odor (chemical, musty, or metallic).
|
Off‑Taste or Odor in Ice | View Details |
| – |
Ice maker cycles water but evaporator does not get cold or form ice.
|
No Cooling / Warm Evaporator | View Details |
| – |
Ice maker frequently freezes up with solid blocks of ice around the evaporator or in the sump.
|
Freeze‑Up / Ice Block Formation | View Details |
| – |
Ice maker is very noisy during operation (rattling, grinding, or loud humming).
|
Excessive Operational Noise | View Details |
| – |
Ice maker leaks water onto the floor from under or around the unit.
|
External Water Leak | View Details |
| – |
Ice maker powers on but will not start a cycle (stays idle).
|
Won't Start Cycle | View Details |
| – |
Ice maker produces ice but bin overflows or does not stop making ice.
|
Bin Overfill / Bin Control Failure | View Details |
| – |
Ice maker produces ice, but ice production is significantly lower than rated capacity.
|
Low Ice Production | View Details |
| – |
Ice maker runs a cleaning cycle but does not seem to remove scale effectively.
|
Ineffective Cleaning / Descaling | View Details |
| – |
Ice maker runs but ice is wet, soft, or melts quickly in the bin.
|
Soft or Wet Ice in Bin | View Details |
| – |
Ice maker runs but produces no ice at all.
|
No Ice Production | View Details |
| – |
Ice maker starts but shuts off after a short time without making ice.
|
Premature Shutdown | View Details |
| – |
Ice maker trips the circuit breaker or blows fuses.
|
Electrical Overload / Short Circuit | View Details |
| – |
Ice maker vibrates excessively or rattles against surrounding cabinetry.
|
Excessive Vibration | View Details |
| – |
Ice maker will not power on at all (no lights, no display).
|
No Power / Dead Unit | View Details |
| – |
Ice maker's condenser fan runs constantly even when not making ice.
|
Condenser Fan Control Fault | View Details |
| – |
Ice sticks to the evaporator and does not drop into the bin properly.
|
Poor Harvest / Ice Sticking | View Details |
| – |
Visible slime, mold, or heavy scale buildup inside the ice maker or bin.
|
Sanitation / Biofilm Contamination | View Details |
| – |
Water leaking inside the bin, causing slushy ice or water pooling under the ice.
|
Internal Water Leak into Bin | View Details |
No matching codes found
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