Latronics Solar Inverter Faults

Submitted by Nedjma.Loucif on Thu, 27/04/2017 - 16:32

Latronics is an Australian manufacturer which produced 1.2kW and 2.5kW solar power inverters. The older models, which were installed in 2009-2011, came with a 5-year warranty, but the more recent ones only carry a 3-year warranty. With refurbished units, this drops to 12 months.

As most Latronics customers are on the higher feed-in tariff, the capacity of the inverter cannot be increased if they want to keep receiving STCs.

Because their size isn't standard, 1.2kW models cannot be swapped for another manufacturer's. As such, Latronics customers with 1.2 kW units can purchase a new PVE1200 or a refurbished one.

The 2.5kW model can be replaced with a Fronius Galvo 2.5, but it would require the entire system to be rewired, incuring a $1000 fee in addition to the cost of the inverter. Consequently, it is more cost-effective to replace the whole system (including the panels) with a new one.

A flashing light only indicates a fault if all other lights are off. For example, if the 25% light is on solid and the 50% light is flashing, it simply means that the inverter is on the cusp of 50% production.

Latronics does not cover any labour costs as part of its warranty, given that its inverters are plug-and-play (and can, thus, be returned by the customers). As such, a health check fee will be charged if attendance is requested.

 

Fault Code Description Remedy  
50% Grid out of Range If the 50% light is on intermittently (i.e. flashing), it can be due to a legitimate grid voltage issue.
If it's lit constantly, though, you should check if the isolators - and particularly the solar supply main switch - are on. If they are, the unit may need replacing.
75% Grid out of Range If the 75% light is on intermittently (i.e. flashing), it can be due to a legitimate grid voltage issue.
If it is on permanently, though, you should check if the isolators - and particularly the solar supply main switch - are on. If they are, the unit may need replacing.
100% Overload The 100% light should only be lit when the system is overloaded during perfect solar conditions.
  Loud noise If you hear a loud noise, it is likely the fan is in the process of failing.
You can order a new fan for $260.
  Inverter dead If it appears your inverter is dead, you should check if the isolators - and particularly the solar supply main switch - are on. If they are, the unit may need replacing. We suggest you book a health check in order for a technician to verify if the problem can be fixed by replacing the internal DC switch (for an additional $110). If not, they will be able to replace your system.
  Production lights lower than expected If the lights on your inverter don't shine as brightly as you'd expect, we suggest you book it in for a health check and ask that our technicians check and replace the fuses on the roof if required.