Got a Monta or charger error code and not sure what it is? This guide explains what the error codes are and how to fix.
| Error code | Reason | Solution |
| 0100 0000 0000 0000 0000 0000 0000 0000 | Over temperature on mainboard. | If the issue occurs, turn off the charger for 10 minutes and then turn it back on. If the issue persists, it's possible that there's a problem with the charger. |
| 0400 0000 0000 0000 0000 0000 0000 0000 | Over voltage alarm | 1. In most cases, the issue with the charger is caused by an unstable power grid. Please wait for some time and check if the issue resolves itself. 2. Turn off the charger, wait a few seconds, and then turn it back on to see if the issue is resolved. 3. If the issue persists, use a multimeter to check if the voltage is normal, which should be around 230V. 3.1 If the measurement is not normal, the issue is related to the power grid. 3.2 If the measurement is normal, but the charger still reports an error, there may be an issue with the charger. |
| 0800 0000 0000 0000 0000 0000 0000 0000 | Under voltage alarm. This could be caused by unstable grid or faulty PCBA. |
1. In most cases, charging issues arise due to an unstable power grid. Please wait for some time before checking if the issue resolves on its own. 2.Turn off the charger, wait a few seconds, and then turn it back on to see if the issue is resolved. 3. If the problem persists, use a multimeter to check if the voltage is normal, which should be around 230V. |
| 2000 0000 0000 0000 0000 0000 0000 0000 | Over frequency alarm. This could be caused by unstable grid or faulty PCBA. | 1. In many cases, an unstable grid can cause the issue. Please wait for some time to see if it recovers on its own. 2. Try turning off the charger, and then turn it back on to see if the issue disappears. 3. If the issue persists, it's possible that there's a problem with the charger. |
| 4000 0000 0000 0000 0000 0000 0000 0000 | Under frequency alarm. This could be caused by an unstable grid or faulty PCBA. | 1. In most cases, the issue is caused by the unstable grid. So please wait for some time to check if it can recover itself. 2. Power off the charger and then power it on to check if the issue is gone. 3. If the issue is always there, please use a multimeter to check if the voltage is normal, about 230V. 3.1 if the measurement is not normal, it is related to the grid. 3.2 if the measurement is normal, there may be something wrong with the the charger. |
| 1000 0000 0000 0000 0000 0000 0000 0000 | Over current alarm. This can be due to a problem with either the EV or the charger's PCBA. |
In most cases, if you're having an issue with the charger, it's related to the EV (electric vehicle). To confirm this, try charging a different EV and see if the issue goes away. If the issue disappears when charging a different EV, it means that the charger is not the problem. However, if the issue persists when charging any EV, it suggests that there is something wrong with the charger. |
| 8000 0000 0000 0000 0000 0000 0000 0000 | DC leakage alarm A(200mA) |
1. Disconnect and then reconnect the RCD-DD cable.
|
| 0020 0000 0000 0000 0000 0000 0000 0000 | DC leakage alarm B(60mA) | 1. Disconnect and then reconnect the RCD-DD cable. 2. Try charging with a different EV, if possible, to see if the problem persists. If it is not possible to check with a different EV, then replacing the charger is suggested. 3. If the issue persists with any EV during charging, it suggests a problem with the charger. Replacing the charger is necessary. |
| 0040 0000 0000 0000 0000 0000 0000 0000 | Relay adhesion. The possible reason is the relay on PCBA is faulty. | Power off the charger and power it on. If the issue persists, the relay may be faulty. Replacing the charger is required. |
| 0080 0000 0000 0000 0000 0000 0000 0000 | GND warning. The PE cable is not connected properly. | When the error code appears, it does not affect charging. However, for safety, please ensure that the PE cable is properly and correctly connected. |
| 0000 0100 0000 0000 0000 0000 0000 0000 | Input phase reverse. | Please double check the input L, N, and PE cables are installed in the correct location. |
| 0000 1000 0000 0000 0000 0000 0000 0000 | ESP32 meter com fault. The issue is related to load balance. |
If the customer is not using the load balance function, they must disable it. This can be done through the app or platform, and once disabled, the issue will be resolved. If the customer is using the load balance function, please ensure that it has been set up correctly. Additionally, check if the cable of the CT or meter has been installed properly with the correct polarity. |
| 0000 0000 0000 0000 0000 0000 0800 0000 | Relay overtemperature |
When the issue occurs, the charger's charging current is reduced as a protective measure. The issue will automatically resolve itself when the charger is idle. |
| 0000 0000 0000 0000 0000 0000 0400 0000 | GND warning. The PE cable is not connected properly. |
Please check if the PE cable is connected properly and correctly or not. |
| 0000 2000 0000 0000 0000 0000 0000 0000 | Load balance CT fault |
Please check if the CT clamp is connected to the charger and with the correct polarity. |
| 0000 8000 0000 0000 0000 0000 0000 0000 | Control pilot voltage abnormal. The issue is related to the connection between the CP cable with PCBA. |
1. When the issue happens, please power off the charger and power it on to check if the issue is gone.
|
