Hoshizaki
Hoshizaki 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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1 beep (repeating)
Unit will not start; control board beeps once repeatedly and machine remains off
High Voltage or Control Board Power Supply Fault
2 beeps (repeating)
Unit powers on but does not start ice production; control board beeps twice repeatedly
Bin Control or Ice Level Sensor Fault
3 beeps (repeating)
Unit stops and will not restart; control board beeps three times repeatedly
Float Switch or Low Water Safety Fault
4 beeps (repeating)
Unit shuts down during or after harvest; control board beeps four times repeatedly
High Temperature or Thermistor Fault
5 beeps (repeating)
Unit stops and will not restart; control board beeps five times repeatedly
High Pressure or Refrigeration System Safety Trip
6 beeps (repeating)
Unit shuts down; control board beeps six times repeatedly
Low Voltage or Power Supply Fault
7 beeps (repeating)
Unit stops mid-cycle; control board beeps seven times repeatedly
Harvest Failure or Long Harvest Time
8 beeps (repeating)
Unit shuts down; control board beeps eight times repeatedly
Long Freeze Cycle or Freeze Time Exceeded
9 beeps (repeating)
Unit stops; control board beeps nine times repeatedly
Drain Pump or Drain Error (on models with built-in pump)
E1
Digital display shows E1 and ice production stops
Evaporator Thermistor Error
E2
Digital display shows E2 and unit will not run a normal cycle
Bin Thermostat or Bin Control Error
E3
Digital display shows E3; unit may stop during freeze
Freeze Thermistor or Freeze Cycle Error
E4
Digital display shows E4; unit shuts down on safety
High Discharge Temperature or Discharge Thermistor Error
E5
Digital display shows E5; unit may not enter harvest properly
Harvest Thermistor or Harvest Cycle Error
E6
Digital display shows E6; unit may not start compressor
Compressor Overload or Current Error
E7
Digital display shows E7; unit may run briefly then shut down
Water Supply or Fill Error
E8
Digital display shows E8; unit may stop with water remaining in reservoir
Drain Error or Long Drain Time
E9
Digital display shows E9; unit may not respond to keypad
Control Board Communication or Keypad Error
H1
Display shows H1; unit continues to run but with reduced performance
High Ambient Temperature Warning
H2
Display shows H2; unit may shut down intermittently
High Condenser Temperature or High Pressure Warning
Symptom
Clicking sound, compressor tries to start but shuts off repeatedly
Hard Starting / Short Cycling Compressor
Symptom
Cubes are too large, fused together, or bridging
Oversized Cubes / Bridging
Symptom
Ice appears cloudy or white instead of clear
Cloudy Ice
Symptom
Ice has a bad taste or odor
Contaminated Ice / Taste and Odor Issue
Symptom
Ice is wet, soft, or melts quickly in the bin
Soft Ice / Poor Storage
Symptom
Ice maker will not power on at all (no lights, no display, no sounds)
No Power / Dead Unit
Symptom
Ice production is very low compared to rating
Reduced Ice Capacity
Symptom
Unit displays lights but buttons do not respond or respond intermittently
Unresponsive Keypad / Control Interface
Symptom
Unit emits a burning smell or visible smoke from cabinet
Electrical Overheating / Component Burnout
Symptom
Unit frequently freezes up with ice bridging on evaporator, requiring manual defrost
Evaporator Freeze-Up / Ice Build-Up
Symptom
Unit is very noisy during operation (rattling, grinding, or loud humming)
Excessive Noise / Vibration
Symptom
Unit leaks water onto floor from under or around cabinet
External Water Leak
Symptom
Unit makes ice but cubes are too small or thin
Small or Incomplete Cubes
Symptom
Unit runs but makes no ice at all
No Ice Production
Symptom
Unit runs continuously and overfills bin, ice spilling out
Bin Control Failure (Won't Shut Off)
Symptom
Unit short cycles on and off frequently without making much ice
Short Cycling / Nuisance Shutdowns
Symptom
Unit trips the circuit breaker when it starts or shortly after
Electrical Overload / Short Circuit
Symptom
Visible frost or ice buildup on suction line or compressor
Refrigeration Floodback / Low Load Condition
Symptom
Water leaking inside bin, causing slushy ice or standing water
Internal Bin Leak / Incomplete Drainage
| Error Code | Symptom | Fault Type | Guide |
|---|---|---|---|
| 1 beep (repeating) |
Unit will not start; control board beeps once repeatedly and machine remains off
|
High Voltage or Control Board Power Supply Fault | View Details |
| 2 beeps (repeating) |
Unit powers on but does not start ice production; control board beeps twice repeatedly
|
Bin Control or Ice Level Sensor Fault | View Details |
| 3 beeps (repeating) |
Unit stops and will not restart; control board beeps three times repeatedly
|
Float Switch or Low Water Safety Fault | View Details |
| 4 beeps (repeating) |
Unit shuts down during or after harvest; control board beeps four times repeatedly
|
High Temperature or Thermistor Fault | View Details |
| 5 beeps (repeating) |
Unit stops and will not restart; control board beeps five times repeatedly
|
High Pressure or Refrigeration System Safety Trip | View Details |
| 6 beeps (repeating) |
Unit shuts down; control board beeps six times repeatedly
|
Low Voltage or Power Supply Fault | View Details |
| 7 beeps (repeating) |
Unit stops mid-cycle; control board beeps seven times repeatedly
|
Harvest Failure or Long Harvest Time | View Details |
| 8 beeps (repeating) |
Unit shuts down; control board beeps eight times repeatedly
|
Long Freeze Cycle or Freeze Time Exceeded | View Details |
| 9 beeps (repeating) |
Unit stops; control board beeps nine times repeatedly
|
Drain Pump or Drain Error (on models with built-in pump) | View Details |
| E1 |
Digital display shows E1 and ice production stops
|
Evaporator Thermistor Error | View Details |
| E2 |
Digital display shows E2 and unit will not run a normal cycle
|
Bin Thermostat or Bin Control Error | View Details |
| E3 |
Digital display shows E3; unit may stop during freeze
|
Freeze Thermistor or Freeze Cycle Error | View Details |
| E4 |
Digital display shows E4; unit shuts down on safety
|
High Discharge Temperature or Discharge Thermistor Error | View Details |
| E5 |
Digital display shows E5; unit may not enter harvest properly
|
Harvest Thermistor or Harvest Cycle Error | View Details |
| E6 |
Digital display shows E6; unit may not start compressor
|
Compressor Overload or Current Error | View Details |
| E7 |
Digital display shows E7; unit may run briefly then shut down
|
Water Supply or Fill Error | View Details |
| E8 |
Digital display shows E8; unit may stop with water remaining in reservoir
|
Drain Error or Long Drain Time | View Details |
| E9 |
Digital display shows E9; unit may not respond to keypad
|
Control Board Communication or Keypad Error | View Details |
| H1 |
Display shows H1; unit continues to run but with reduced performance
|
High Ambient Temperature Warning | View Details |
| H2 |
Display shows H2; unit may shut down intermittently
|
High Condenser Temperature or High Pressure Warning | View Details |
| – |
Clicking sound, compressor tries to start but shuts off repeatedly
|
Hard Starting / Short Cycling Compressor | View Details |
| – |
Cubes are too large, fused together, or bridging
|
Oversized Cubes / Bridging | View Details |
| – |
Ice appears cloudy or white instead of clear
|
Cloudy Ice | View Details |
| – |
Ice has a bad taste or odor
|
Contaminated Ice / Taste and Odor Issue | View Details |
| – |
Ice is wet, soft, or melts quickly in the bin
|
Soft Ice / Poor Storage | View Details |
| – |
Ice maker will not power on at all (no lights, no display, no sounds)
|
No Power / Dead Unit | View Details |
| – |
Ice production is very low compared to rating
|
Reduced Ice Capacity | View Details |
| – |
Unit displays lights but buttons do not respond or respond intermittently
|
Unresponsive Keypad / Control Interface | View Details |
| – |
Unit emits a burning smell or visible smoke from cabinet
|
Electrical Overheating / Component Burnout | View Details |
| – |
Unit frequently freezes up with ice bridging on evaporator, requiring manual defrost
|
Evaporator Freeze-Up / Ice Build-Up | View Details |
| – |
Unit is very noisy during operation (rattling, grinding, or loud humming)
|
Excessive Noise / Vibration | View Details |
| – |
Unit leaks water onto floor from under or around cabinet
|
External Water Leak | View Details |
| – |
Unit makes ice but cubes are too small or thin
|
Small or Incomplete Cubes | View Details |
| – |
Unit runs but makes no ice at all
|
No Ice Production | View Details |
| – |
Unit runs continuously and overfills bin, ice spilling out
|
Bin Control Failure (Won't Shut Off) | View Details |
| – |
Unit short cycles on and off frequently without making much ice
|
Short Cycling / Nuisance Shutdowns | View Details |
| – |
Unit trips the circuit breaker when it starts or shortly after
|
Electrical Overload / Short Circuit | View Details |
| – |
Visible frost or ice buildup on suction line or compressor
|
Refrigeration Floodback / Low Load Condition | View Details |
| – |
Water leaking inside bin, causing slushy ice or standing water
|
Internal Bin Leak / Incomplete Drainage | View Details |
No matching codes found
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