This Article Lists all the Possible Errors that Appear on the Epsilon Touchscreen.
During the use of your BCN3D Epsilon, it's possible that you stumble on an Error screen from time to time. In this article, we will explain all the Error screens that can appear and how you can solve them to get back to printing as usual:
Heating Failed Errors
A "Heating Failed" error screen will appear when the unit is trying to heat up a certain heater (in this case the hotends or the hotbed), and it doesn't warm them up at the optimal speed.
There are a number of reasons for this to happen. It is usually an issue with the connection of the heaters (hotend flat cables or hotbed cable) or a defective component.
Heating Failed on Left/Right Hotend
Check 1. When this type of error pops up, it means the hotends are not well connected, defective, or there's not enough power to completely heat them. To diagnose the issue, first check that the flat cables are well connected:
How to check the flat cable connections
Check 2. If the error still pops up, swap the hotends from side to side. If the error then changes to the other side, the issue is located in the hotend, which will have to be replaced. This article will help with that process:
Check 3. If the issue persists on the same head, try swapping the extruder boards from one side to the other. If the error shoots on the other head after this change, the extruder board will have to be swapped out for a new one.
How to change the extruder board
Check 4. If the issue still persists on the same head, it's possible that the hotend flat cable is damaged. It will have to be replaced as well.
How to change the hotend cable
Check 5. If this error shoots on both hotends and the hotbed, and you're not able to move the printing platform, it's possible that the mainboard fuse has blown due to a shortcircuit. In this case, you'll have to replace it.
How to check and change the mainboard fuse
Heating Failed on Hotbed
This can happen due to a failure in the Hotbed power supply or in the hotbed itself. If keeps happening after resetting the printer, get in contact with the BCN3D Support Team.
Thermal Runaway Errors
These errors pop up when the printer triggers the Thermal Runaway Protection feature. This protects your printer against a thermistor malfunction that could cause damage on the printer.
If a thermistor fails, it will read a temperature lower than the actual measurement. The system will turn the heater on nonstop, burning up the filament and anything else around it. This Thermal Runaway Protection turns off the heater once it detects a thermistor malfunction.
In this case, this is related to the Thermistor itself. You'll have to replace the component that the display indicates. If this error pops up for the hotbed, please contact our BCN3D Support Team.
Max Temperature Triggered Errors
This error occurs when the printer reads a temperature above the machine's maximum temperatures:
BCN3D Epsilon Series max Hotend temperature: 300ºC
BCN3D Epsilon Series max Hotbed temperature: 120ºC
If your unit reads a value above the maximum temperature and the issue does not solve when resetting the controller, this is a sign that the heater thermistor, the printer's electronics or the mainboard is malfunctioning.
Max Temperature Triggered on Left/Right Hotend
When this type of error pops up, it means the hotend thermistors are defective, or the electronics of the printer deliver too much power to the hotend . To locate the actual issue, follow these steps:
Check 1. Swap the hotends from side to side, if the error then shows on the other side, the issue is located in the hotend, which will have to be replaced. This article will help you with that process:
Check 2. If the issue persists on the same head, try swapping the extruder boards from one side to the other. If the error shows on the other head after this change, the extruder board will have to be swapped out for a new one.
How to change the extruder board
Check 3. If this error indicates both hotends and the hotbed, and you're not able to move the printing platform, it's possible that the mainboard fuse has blown due to a shortcircuit. In this case, you'll have to replace it.
How to check and change the mainboard fuse
Max Temperature Triggered on Hotbed
This can happen due to a failure in the Hotbed power supply or in the hotbed itself. If this happens, get in contact with the BCN3D Support Team.
Min Temperature Triggered Errors
This error occurs when the printer reads a temperature of 0ºC or below. If your unit reads a value below the minimum temperatures and the issue does not solve when resetting the controller, this is a sign that the affected controlled is not connected, or the heater thermistor, the printer's electronics or the mainboard are malfunctioning.
Min Temperature Triggered on Left/Right Hotend
Check 1. When this type of error pops up, it means the printer is not detecting any thermistor, or the electronics of the printer is not delivering any power to the hotend . To locate the actual issue, follow these steps:
Check 2. Check that the hotends are well connected and the flat cable connections are good.
How to check the flat cable connections
Check 3. Swap the hotends from side to side, if the error then shows on the other side, the issue is located in the hotend, which will have to be replaced. This article will help you with that process:
Check 4. If the issue persists on the same head, try swapping the extruder boards from one side to the other. If the error indicates the other head after this change, the extruder board will have to be swapped out for a new one.
How to change the extruder board
Check 5. If this error indicates issues with both hotends and the hotbed, and you're not able to move the printing platform, it's possible that the mainboard fuse has blown due to a shortcircuit. In this case, you'll have to replace it.
How to check and change the mainboard fuse
Min Temperature Triggered on Hotbed
Check that the connection between the hotbed and mainboard is correct, this can also happen due to a failure in the Hotbed power supply or in the hotbed itself. If this keeps happening and the connection looks good, contact the BCN3D Support Team.
Firmware Flashing Error
This happens when the firmware is not properly loaded in the mainboard. The most possible cause is an irregular BCN3D Cloud connection, make sure your Wi-Fi signal is strong enough to be detected by the printer. If this keeps happening, try loading the firmware this way:
If the error still pops up, get in contact with our BCN3D Support Team:
Machine Configuration Errors
This usually happens when you start using your brand-new BCN3D Epsilon, in most cases this is fixed by simply reconfiguring the printer.
However, if the following message appears, contact BCN3D's Support team:
Emergency Stop Error
This message appears when the printer is not able to detect any endstop or one of these is malfunctioning. This article will help you locate and solve this issue.
Endstop issues and how to fix them (Epsilon Series)
Unknown Error
This error pops up by default if the error is not related to any of the issues above. Reset the printer, if this doesn't solve the issue, contact BCN3D's Support Team.
Forum community
Still having issues? Check out our forum community for troubleshooting help.
It's important to keep your printer in good shape to make the most out of it. In this chart you can find a list of the extruder maintenance procedures and how frequently these should be done. Maintenance Plan.
Take your e-waste to a certified recycler. Check how we do it in BCN3D.
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