Troubleshooting
Table 3-2 Possible Problems if Utility Power is Not Available
Problem | Probable Cause | Solution |
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Display is ON, AC is not | Low input voltage | Recharge the battery; check the |
available on both | (error code E01) | connections and cable. |
hardwired and unit |
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AC socket. | High input voltage | Make sure the unit is connected to a 12 V |
| (error code E02) | battery. Check battery is not overcharged. |
| Unit is overload protected | Reduce the amount of loads connected to |
| (error code E03) | the unit or the start up surge on the load |
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| exceed surge limit of the unit. |
| Unit is thermal protected | Allow the unit to cool off. Reduce the |
| (error code E04) | load if continuous operation is required. |
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| Improve ventilation. Make sure the |
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| inverter's ventilation openings are not |
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| obstructed. |
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| Reduce the ambient temperature. |
| Unit is ground fault protected | Turn the unit off. Check all DC Input |
| (error code E09) | connections (PV, wind etc.) and repair |
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| any faults or damage. Replace the ground |
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| fault fuse (see page |
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| unit |
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Digital display or LED is | Display is normal | N/A |
flickering especially in a |
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dark environment. |
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Inadequate run time. | Internal battery is not fully | Charge the internal battery by leaving the |
| charged. | charger backup power system plugged |
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| into a wall outlet at least 20 hours. |
| Internal battery has aged past its | Replace the internal battery. The internal |
| warranted shelf life, the available | battery also ages prematurely if the |
| run time decreases. | system is installed in a hot environment. |
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Products connected to unit | Products connected to backup | Your application is not compatible with |
malfunction or overheat. | power system do not accept | backup power system modified sine wave |
| modified sine wave form. | output. |
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| See “Rechargeable Devices” on page |
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