When a Naixer commercial ice machine displays an error code, the code is designed to help identify where the problem may be occurring.
A fault code does not always mean that a major component has failed. It may indicate a sensor issue, water shortage, ice thickness problem, overheating condition, or another operating abnormality.
This Naixer error codes guide brings the available fault codes and common machine problems into one place, so you can quickly find the code or symptom you are seeing and identify the recommended next step.
Quick answer: Find your Naixer fault code in the reference table below. The table shows the possible reason and recommended resolution. For repeated faults, internal component failures, or problems that cannot be resolved by the listed checks, contact Naixer technical support.
In this guide, you will learn:
Naixer Error Codes Quick Reference
The table below follows the Naixer troubleshooting reference provided for the machine documentation.
Important: The .. entry is reproduced as shown in the supplied Naixer reference. It should not be automatically changed to E2 without model-specific documentation confirming that code.
| Fault | Possible Reason | Recommended Resolution |
|---|---|---|
| A1 | Ice tank is full of ice. | Remove ice and allow the machine to run automatically. |
| E1 | Condenser temperature sensor is faulty or disconnected. | Replace the temperature sensor or reconnect the wire. |
| .. | Water temperature sensor failure. | Replace the water temperature sensor. |
| E3 | Ice fall switch failure or line disconnection. | Replace the ice fall switch or reconnect the wire. |
| E4 | Ice is too thick or too thin. | Adjust the ice thickness. |
| E5 | Water shortage in the circulating water tank or sensor failure. | Add water to the water box or replace the sensor. |
| E6 | Compressor temperature is too high. | Check heat dissipation. |
| E7 | Compressor temperature is too high. | Check the cooling-water switch and water pressure. |
| -- | The ice machine is in the ice-falling process. | This is a normal operating condition. |
This reference is intentionally compact: a user searching for Naixer error codes should be able to identify the displayed fault without scrolling through a long troubleshooting article.
What Do the Naixer Error Codes Mean?
A1 — Ice Tank Full
Possible reason:
The ice tank is full.
Recommended resolution:
Remove ice from the tank and allow the machine to continue operating automatically.
An A1 indication does not necessarily mean that the ice-making system has failed. It can simply indicate that the storage area has reached its available ice level.
E1 — Condenser Temperature Sensor Fault
Possible reason:
The condenser temperature sensor is faulty or its connection is disconnected.
Recommended resolution:
Check the sensor connection. Replace the temperature sensor if required.
Because sensor-related faults can affect the machine’s control logic, avoid replacing unrelated components simply because the E1 code appears.
.. — Water Temperature Sensor Failure
Possible reason:
The water temperature sensor has failed.
Recommended resolution:
Replace the water temperature sensor.
The supplied Naixer troubleshooting reference displays this fault as ... Because error-code numbering can be model-specific, it should remain exactly as documented unless the manual for a particular model identifies it differently.
E3 — Ice Fall Switch Fault
Possible reason:
The ice fall switch has failed or the connecting line is disconnected.
Recommended resolution:
Check the switch connection and replace the ice fall switch or reconnect the wire as required.
The ice-fall function is important because the machine needs to detect the transfer of ice during the harvest stage.
E4 — Ice Thickness Fault
Possible reason:
The ice is too thick or too thin.
Recommended resolution:
Adjust the ice thickness setting.
This type of issue is different from a complete machine failure. The machine may still be operating, but the ice thickness setting needs to be corrected.
For broader information about operating and adjusting a commercial machine, you can also visit our commercial ice machine guide.
E5 — Water Supply or Circulation Problem
Possible reason:
The machine has insufficient water in the circulating water tank, or the sensor has failed.
Recommended resolution:
Add water to the water box or replace the sensor, depending on the condition found.
Before assuming that an internal component has failed, confirm that the machine has an adequate water supply and that the water system is operating as expected.
E6 — Compressor Temperature Too High
Possible reason:
The compressor temperature is too high.
Recommended resolution:
Check heat dissipation.
For an air-cooled commercial ice machine, restricted airflow can reduce heat removal and affect operating performance. Naixer’s current troubleshooting content also links reduced performance and E6-type conditions with airflow and condenser issues.
Check first: Make sure the machine’s ventilation path is not blocked and that the heat-dissipation area can operate normally.
If the fault returns after the basic check, contact technical support rather than repeatedly restarting the machine.
E7 — Compressor Temperature Too High / Cooling-Water Check
Possible reason:
The compressor temperature is too high.
Recommended resolution:
Check the cooling-water switch and water pressure.
Unlike E6, the supplied Naixer troubleshooting table specifically points to the cooling-water switch and water pressure for E7. Follow the model-specific manual rather than treating E6 and E7 as identical faults.
-- — Normal Ice-Falling Condition
Possible reason:
The ice machine is in the ice-falling process.
Recommended resolution:
No repair is required. This is a normal operating phenomenon.
This is an important distinction because not every symbol shown on the display represents a fault.
Naixer Ice Machine Troubleshooting Without an Error Code
Not every operating problem produces a numerical fault code.
The Naixer troubleshooting reference also identifies several common conditions that may occur without a specific error number.
Ice Maker Does Not Start
Two listed possibilities are:
- Poor contact at the socket
- The water baffle is not reset
The recommended actions are to check the power connection and adjust the water baffle so that it can reset freely.
For safety, electrical faults or internal electrical work should be handled according to the machine’s model-specific manual and by qualified personnel where required.
The Ice Maker Stops After Running
The supplied troubleshooting reference identifies several possible causes:
Water source is not open or the connection is not firm
→ Recheck the water source and connection.
Ice maker is not horizontal
→ Adjust the feet and place the machine horizontally.
Over-temperature shutdown protection
→ Investigate the operating temperature and heat-dissipation condition.
This last condition is especially important because repeated overheating should not simply be treated as a reset problem.
Significant Reduction in Ice Production
A noticeable drop in ice production can have several causes:
- The machine has not been cleaned for more than two months
- High water temperature
- High ambient temperature
- A narrow or closed installation environment
- Flume overflow
The reference recommends checking the surrounding conditions and keeping the air circulation path clear.
Naixer’s current cleaning guidance also notes that mineral scale can restrict water flow and affect ice production, which is why cleaning is part of the broader troubleshooting process.
Need Help Identifying a Naixer Error Code?
Can’t find your code in the table?
Send Naixer:
Your machine model + fault code + photo of the display + a short description of the problem.
This gives the support team the information needed to identify the issue more efficiently.
For replacement equipment or a new commercial ice machine project, you can also use the Naixer commercial ice machines page to review the current product range.
Naixer Error Codes FAQ
What do Naixer error codes mean?
Naixer error codes indicate abnormal operating conditions such as sensor faults, water-related problems, ice thickness issues, ice-fall switch problems, or excessive compressor temperature. The exact response depends on the displayed code.
What does E1 mean on a Naixer ice machine?
E1 indicates that the condenser temperature sensor may be faulty or disconnected. The supplied Naixer troubleshooting reference recommends replacing the temperature sensor or reconnecting the wire.
What does E4 mean on a Naixer ice machine?
E4 indicates that the ice is too thick or too thin. The recommended resolution is to adjust the ice thickness.
What does E6 mean on a Naixer ice machine?
E6 indicates that the compressor temperature is too high. The recommended resolution in the Naixer troubleshooting reference is to check heat dissipation.
What does E7 mean on a Naixer ice machine?
E7 indicates that compressor temperature is too high, with the troubleshooting reference specifically directing the user to check the cooling-water switch and water pressure.
Do all Naixer ice machines use the same error codes?
Not necessarily. Error-code behavior can vary by machine series and control system. Always confirm the code against the manual for the specific Naixer model.
What should I do if my Naixer error code is not listed?
Record the exact code, machine model and a photo of the display, then contact Naixer technical support for model-specific assistance.
