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THE SOLAR & BATTERY EXPERTS SINCE 2007
Do you have a SolaX inverter which is showing a fault code? You’ve come to the right place! Browse the table below to find out what each fault code / error message means.
Carbon Management Solutions (CMS) are no longer in business and as such are not honoring any warranties. If your CMS inverter isn’t working, chances are you may be up for a new inverter to get your solar system operational again.
| Inverter Screen | Error Type | Description & Solution |
|---|---|---|
| SPI Fault | SPI communication fault | Disconnect the panel array by turning the DC isolator switch to the off position. If the inverter doesn’t return to normal operations, contact your local solar expert for further guidance. |
| SCI Fault | SCI communication fault | There is an internal SCI communication fault. Disconnect the panel array by turning the DC isolator switch to the off position. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| CAN1 Fault | CAN communication fault | Disconnect the panel array and battery by turning the array DC isolator switch and battery isolator switch to the off position, shut-down the inverter by switching the AC isolator switch off and then reconnect. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| PV Config. Fault | PV array connection fault | Reset the PV connection by turning the system off and back on. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| Inv. EEPROM | Internal ROM fault | The ROM in the internal inverter circuit is damaged and requires replacement. Contact Goodhew for further guidance. |
| Relay Fault | Internal relay fault | There is an abnormality with the internal relay. Turn your solar system off and contact Goodhew for further guidance. |
| Sample Fault | Detection circuit fault | The detection reference circuit in the inverter is operating abnormally. Please contact Goodhew for further guidance. |
| RCD Fault | Residual current device fault | The Residual Current Device (RCD) is operating abnormally. Please check the impedance of DC input and AC output. Disconnect the panel array and battery by turning the DC isolator switch and battery isolator switch to the off position, shut-down the inverter by switching the AC isolator switch off and then reconnect. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| Fan1 Fault / Fan2 Fault | Fan device fault | The internal fan within the inverter is operating abnormally. Restart the inverter by following the shutdown procedure on your installation. Check if there is visible dust or foreign matter blocking the fan from spinning. DO NOT attempt to open the inverter housing or clean the fan. Contact your local solar expert for further guidance. |
| AC HCT Fault | AC current sensor fault | Disconnect the panel array by turning the DC isolator switch to the off position. If the inverter doesn’t return to normal operations, contact your local solar expert for further guidance. |
| Overload Fault | Overload in EPS Mode | Turn off the high-power device or appliance, press ‘ESC’ to restart the inverter. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| EPS OCP Fault | Overcurrent in EPS Mode | Make sure the load power is within the EPS power range. Check is any non-linear load is connected on the EPS, remove this load to check recovery. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| DCI Device Fault | DCI device fault | Disconnect the panel array and battery by turning the DC isolator switch and battery isolator switch to the off position, shut-down the inverter by switching the AC isolator switch off and then reconnect. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| EPS Relay Fault | EPS relay fault | Disconnect the panel array and battery by turning the DC isolator switch and battery isolator switch to the off position, shut-down the inverter by switching the AC isolator switch off and then reconnect. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| TZ Protect Fault | Overcurrent fault | Wait to see if the inverter returns to normal operations. Disconnect the panel array and battery by turning the DC isolator switch and battery isolator switch to the off position, shut-down the inverter by switching the AC isolator switch off and then reconnect. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| Inverter Screen | Error Type | Description & Solution |
|---|---|---|
| Grid Lost Fault | No grid connection | The system will automatically reconnect once the utility connection returns to normal. |
| Grid Volt Fault | Abnormal grid voltage | The grid voltage is out of range. The system will automatically reconnect once the utility connection returns to normal. |
| Grid Freq Fault | Abnormal grid voltage | The grid voltage is out of range. The system will automatically reconnect once the utility connection returns to normal. |
| PLL Lost Fault | Abnormal grid connection | The grid connection is abnormal. The system will automatically reconnect once the utility connection returns to normal. |
| Bus Volt Fault | Bus Voltage out of range | The bus voltage is out of the normal range. Disconnect the panel array and battery by turning the array DC isolator switch and battery isolator switch to the off position, shut-down the inverter by switching the AC isolator switch off and then reconnect. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| AC5M Volt Fault | Grid voltage is out of range for 5 minutes | The grid’s voltage has been out of range for the last 5 minutes. The system will automatically reconnect once the utility connection returns to normal. |
| Inv OCP Fault | Inverter over current protection fault | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| PV Volt Fault | PV voltage fault | Check the output of the PV voltage via the inverter screen. Compare this to the PV voltage on your system voltage nameplate. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| AC10M Volt Fault | Grid voltage is out of range for 10 minutes | The grid’s voltage has been out of range for the last 10 minutes. The system will automatically reconnect once the utility connection returns to normal. |
| Isolation Fault | Isolation fault | Check the connection of the inverter. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| Temp Over Fault | Temperature over the limitation | Check if the fan is running normally. Check if the environmental temperature is over limitation. If the inverter doesn’t return to normal operation, contact Goodhew for further guidance. |
| Fan1 Speed Fault / Fan2 Speed Fault | Abnormal fan speed | The fan speed is out of the normal range. Restart the inverter by following the shutdown procedure on your installation. Check if there is visible dust or foreign matter blocking the fan from spinning. DO NOT attempt to open the inverter housing or clean the fan. Contact your local solar expert for further guidance. |
| C1 CAN | Battery communication fault | The battery CAN communication module is operating abnormally. Check that the charger communication cable is connected. If the inverter doesn’t return to its normal state, contact Goodhew for further guidance. |
| C1 TEMP | Battery charger over temperature | The battery charger is over temperature. Check is the air ducting on the charger is blocked. Ensure that the ambient temperature of the area is within range. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 FAN | Battery charger fan fault | The battery charger fan is not operating. Check if there is visible dust or foreign matter blocking the fan from spinning. DO NOT attempt to open the inverter housing or clean the fan. Contact your local solar expert for further guidance. |
| Inverter Screen | Error Type | Description & Solution |
|---|---|---|
| C1 TZ Fault | Charger protection fault | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 EEPROM | Charger EEPROM fault | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 HCT1 Fault | Charger current detection fault | Disconnect and reconnect the charger. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 HCT2 Fault | Charger current detection fault | Disconnect and reconnect the charger. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 Bus OVP | Charger BUS voltage fault | The BUS voltage of the charger is over the operating limit. Wait to see if the charger returns to normal and clears the fault code. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 Temp Low | Charger temperature below temperature | The charger is below temperature. Check the environmental temperature (i.e. cold conditions) and improve where possible. Wait for the inverter fault to clear. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 Boost OVP | The boost voltage of the charger is over limit | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 Bat OVP | Battery voltage over limit | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 Charger OCP | Charger over current protected | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| C1 Boost OCP | Charger boost current over limit | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| CT Fault | CT or smart meter fault | Check the smart meter status in your switchboard. Restart the inverter to see if the fault clears. DO NOT attempt to open the switchboard to access the CTs or smart meter wiring. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| RC Fault | DCI over current protection fault | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| DCI OCP Fault | DCI over current protection fault | Wait to see if the inverter returns to normal operations. If the inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| DM9000 | Network DSP fault | Restart the system by following the shutdown procedure on your installation. If your inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
| RTC fault | RTC fault | Restart the system by following the shutdown procedure on your installation. If your inverter doesn’t return to normal operations, contact Goodhew for further guidance. |
Goodhew Electrical and Solar offers maintenance and servicing for all inverters and solar systems. Contact our team today for more information.RC
SolaX is growing in popularity for low cost installations. SolaX is still operating today and is honoring warranties. Contact us today for more information.
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