Chinese manufacturer Macsolar sold inverters in Australia from 2011 to 2013. Unfortunately, the company is no longer around to honour the 5-year warranty its products came with.
However, Solargain customers with a Macsolar inverter under warranty will be covered, as we have continued to work with the Australian repairer which was contracted by Macsolar, to complete the repair process at our own expense. All out-of-warranty and non-Solargain customers will need to pay for a replacement.
Macsolar solar inverters are transformerless units, which means they can be replaced with Zeverlution, Growatt, Fronius Galvo 1.5 or 2 or Fronius Primo models in all larger sizes. Although, labour is not covered by the manufacturer, as the unit is plug-and-play and can be returned by the customer, so a health check fee is applicable.
If your Macsolar inverter was installed in late 2011 or after, you would not be receiving the higher feed-in tariff, so you can take this opportunity to increase your system size without compromising on STCs.
If the fault code is not written along the bottom of the inverter's screen (in number sequence), use the menu and scroll to "Record Info": click on the "OK" button, then the down button until the arrow on the left of the screen is on "record INfo", then press "OK". This will provide faults in numbers as per below.
| Fault Code | Description | Remedy | |
| 0 | Grid Voltage Fault | If the fault is intermittent, it may be a legitimate power distributor issue, which needs to be lodged. If it is constant, it can allude to an internal issue requiring replacement. | |
| 1 | Grid Overvoltage.10min Fault | If the fault is intermittent, it may be a legitimate power distributor issue, which needs to be lodged. If it is constant, it can allude to an internal issue requiring replacement. | |
| 2 | Grid Frequency Fault | If the fault is intermittent, it may be a legitimate power distributor issue, which needs to be lodged. If it is constant, it can allude to an internal issue requiring replacement. | |
| 3 | Grid Voltage Loss | Please check that the solar supply main switch is in the "ON" position. If it is and the fault is intermittent, it may be a legitimate power distributor issue, which needs to be lodged. If the fault is permanent, it can allude to an internal issue requiring replacement. | |
| 4 | DC Bus Overvoltage | This fault should only occur in perfect conditions and if the system is overloaded. If it is not the case, the inverter needs to be repaired. | |
| 5 | GFCI Fault | The inverter needs to be replaced. | |
| 6 | Inverter Overheat | This fault indicates a fan failure. The inverter requires replacement. | |
| 7 | Varistor Fault | A surge has occured. This fault is not covered by warranty; you will need to purchase a replacement. | |
| 8 | PV Overvoltage | This fault should only occur in perfect conditions and if the system is overloaded. If it is not the case, the inverter needs to be repaired. | |
| 9 | Consistence Fault | The inverter needs to be replaced. | |
| 10 | Isolation Fault | Please check that the isolators and the solar supply main switch are all in the "ON" position. If they are, you will need to book a maintenance service in order for a technician to check that your isolators are working and that there is no water ingress in your installation. If none is found and no earth fault is detected, then your inverter will require replacing. | |
| 11 | DC Injection Fault | The inverter needs to be replaced. | |
| 12 | Device Fault | The inverter needs to be replaced. | |
| 13 | GFCI Device Fault | The inverter needs to be replaced. | |
| 14 | Comm.Disturbed | This fault may be cleared by conducting a manual shutdown. If resetting the inverter does not fix it, then it will need to be replaced. | |
| 15 | Current Sensor Fault | The inverter needs to be replaced. | |
| 16 | CPU Ref 2.5V Fault | This fault may be cleared by conducting a manual shutdown. If resetting the inverter does not fix it, then it will need to be replaced. | |
| 17 | EEPROM R/W | This fault may be cleared by conducting a manual shutdown. If resetting the inverter does not fix it, then it will need to be replaced. | |
| 18 | DC Injection Device Fault | The inverter needs to be replaced. | |
| 19 | Relay Fault | The inverter needs to be replaced. | |
| 20 | AC Over Current | The inverter needs to be replaced. | |
| 21 | ARM | This fault may be cleared by conducting a manual shutdown. If resetting the inverter does not fix it, then it will need to be replaced. | |
| Communication Error | This fault may be cleared by conducting a manual shutdown. If resetting the inverter does not fix it, then it will need to be replaced. | ||
| Inverter dead | Please check that the isolators are in the "ON" position. If they are, your inverter will require replacing. |
