If your Nuvio Recovery Chiller displays an error code, don’t worry! These alerts are built-in safety features that help protect your unit and keep it running efficiently. Below is a guide to understanding what each code means and how to resolve it.
E1: High Water Temperature Alarm
What it means:
The water in the tank is too hot (above 122°F / 50°C). The chiller will automatically shut off and restart once the temperature drops back to a safe level.
What to do:
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Accidental use of hot water
You might have unintentionally filled your pod using hot tap water. Simply wait for the water to cool below 122°F (50°C), and the machine will automatically resume operation. -
Poor placement of your setup
If your chiller is placed in a hot or enclosed area, such as under direct sunlight, in a hot climate, or somewhere with poor airflow, the surrounding conditions could cause the water to overheat. Try relocating your chiller to a shaded, ventilated spot to improve cooling efficiency. -
Possible sensor issue
If the water doesn’t feel hot but the E1 error is still showing, the temperature sensor may be misreading the water temperature. This is rare but possible. In this case, please contact our support team for help diagnosing the issue.
E2: Low Water Temperature Alarm
What it means:
The water in the tank is too cold (below 34°F / 1.1°C). This safety limit is designed to prevent water from freezing inside the chiller. Ice can form quickly in the internal tank when temperatures fall too low, potentially causing damage to internal components.
What to do:
Let the water warm up
Simply wait for the water in your tub to rise above 34°F (1.1°C). Once it does, the chiller will resume normal operation automatically.Check that the pump is running
In some cases, this error can be triggered if the water pump is not working correctly. Without circulation, a small volume of water can remain stagnant inside the chiller and freeze much faster than expected. Make sure your pump is running and that water is flowing steadily through the outlet hose.Ensure smooth water flow
Confirm that no air is trapped in the pump, hoses are properly connected, and nothing is blocking the water path.
E3: Ambient Temperature Alarm
What it means:
This error occurs when the air temperature around your chiller is either too hot or too cold for safe operation. The system is designed to run only when the ambient temperature is within a safe range: 32°F–122°F (0°C–50°C). If the environment falls outside this range, the chiller will temporarily shut down to protect internal components.
What to do:
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If It’s Too Hot:
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Check your setup location
High ambient temperatures are often due to your chiller being placed in direct sunlight, a hot climate or state, or in a confined area with poor air circulation (e.g., a shed or garage with no ventilation). -
Recommended action
Move your chiller setup to a shaded, well-ventilated area. Avoid placing it near walls or objects that trap heat, and never leave it running outdoors during a heatwave or peak summer heat without sun protection.
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Check your setup location
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If It’s Too Cold:
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Why this happens
Extremely cold ambient temperatures, such as during winter months, can make the chiller's operation unnecessary, since your water may already be cold enough naturally. -
Recommended action
To extend the life of your chiller, we recommend storing it away during winter. Be sure to fully drain the chiller and pump before storing to prevent any water from freezing inside the unit.
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Why this happens
E4: Compressor Error
What it means:
This error indicates that the chiller's compressor may not be receiving proper power, or that there’s an issue with the power supply itself. It's a safety mechanism that prevents the unit from operating under unstable electrical conditions.
What to do:
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Check Your Power Supply
Confirm that the outlet is supplying the correct voltage: 110V / 60Hz is required for safe operation. -
Avoid Power Instability
Do not operate the chiller if your power source is prone to surges, drops, or unstable voltage (e.g., old extension cords, overloaded circuits). -
Try a Different Power Outlet
If you're unsure about the outlet, try plugging the chiller into a different, known-stable outlet to rule out localized electrical issues. -
Inspect the GFCI Plug
If your unit includes a GFCI plug, check that it hasn’t been tripped:- Press the “Reset” button to restore power.
- You can test the safety function by pressing “Test” and then “Reset” again.
- If the GFCI doesn’t reset, contact support.
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Restart the Unit
After verifying the power source and GFCI plug, unplug the chiller, wait 10–15 seconds, then plug it back in and turn it on again.
E5: Cooling System Error
What it means:
There’s a cooling system fault, often due to blocked airflow or obstructions.
What to do:
Make sure the cooling fan at the back of the unit is not blocked or covered.
Remove any foreign objects near the cooling vents.
Maintain a clearance of at least 20 cm (~8 inches) around the unit for proper ventilation.
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Once resolved, reconnect the power and restart the chiller.
Note: This error does not auto-recover, you must restart the machine manually.
E6: Pump Error
What it means:
The chiller is running without the pump operating. When the pump isn’t running, water cannot circulate properly. This causes the small volume of water inside the chiller’s tank to drop in temperature very quickly and potentially freeze, which can trigger the error.
What to do:
Ensure the pump is securely plugged into the chiller.
Check that water is flowing steadily through the outlet hose.
Ensure the hoses are properly connected with no blockages.
If you’ve been using the chiller frequently, it’s a good idea to clean the pump and the stainless steel filter.
Need Help?
If you’ve tried the above steps and your chiller is still showing an error code, don’t hesitate to reach out to our 24/7 customer support team is here. Please include any additional information so we can assist you faster.