Frequently Asked Questions

If you have a damaged or faulty Toowoomba solar inverter, there are a range of error codes you might see. These include, ‘output error’, ‘relay error’, ‘grid not present’, or the display may not be operating at all. Call Express Electrical for fast and cost effective solar fault finding and repairs.

If your Toowoomba solar power inverter isn’t operating, there are number of common faults that can occur in isolation or be caused by a combination of faults. These include:

• lightning strikes damaging solar panels and inverters
• a flash from a solar panel
• transients in the grid voltage
• wear and tear on old internal components
• excessive heat
• the system was operating beyond its design voltage or current limits
• wildlife! – ants, wasps, pigeons, geckos etc

If you experience solar inverter failure, then call Express Electrical for fast fault finding and repair of your home or commercial solar power system. (Accredited with the Clean Energy Council)

Yes. Express Electrical are accredited with the Clean Energy Council and are skilled at repairing and replacing  Toowoomba solar power systems. Technology updates constantly. Failure of an old solar inverter or solar panels may be an opportunity to upgrade to a more reliable, modern and high efficiency solar inverter/panels so that Toowoomba solar repairs are are as cost effective as possible. Talk to Brent or Anna at Express Electrical for solar upgrade options.

Express Electrical are authorised to repair all major brands of Toowoomba solar inverters. Some of the more common brands include:

• Fronius Solar power inverters 
• Power One Solar power inverters
• Sungrow Solar power inverter 
• SMA Solar power inverters
• Zever Solar inverters

The most common fault found with Toowoomba solar panels is when the glass cracks due to hail/storm damage and other circumstances. Other damage can include wiring and other connectivity problems. Depending on the type of fault, some can be repaired by our Toowoomba electricians, although the options are limited. Generally speaking, damaged or faulty panels will need replacing. Contact Express Electrical for options relating to repairing and replacing your Toowoomba solar panels.

Express Electrical are authorised to install all major brands of Toowoomba solar panels. We only recommend and install quality high efficiency solar panels to maximise the power generation and life of your system. Some of the more common brands include:

• DAQO Solar panels 
• Q-Cell Solar panels
• REC Solar panels 
• Risen Solar panels
• Sanyo Solar panels 
• Sharp Solar panels
• Suntech Solar panels 
• Trina Solar panels

The two types of solar panels available to the domestic and commercial market are Monocrystalline Solar panels and Polycrystalline Solar panels. The difference between polycrystalline and monocrystalline relates to the composition of the silicon substrate that’s used in making the solar cells in the panels. Monocrystalline refers to a single crystal whilst polycrystalline refers to many crystals. Contact the team at Express Electrical for more information of what Toowoomba solar panels are right for you.

Do not attempt to fault find or repair your solar inverter as it may pose a risk of electrocution. Contact Express Electrical Toowoomba for free advice and assistance to repair your system.

Your solar power inverter may be faulty if the display is not operating, or you can see an error code on the inverter display. Contact Express Electrical for free advice and assistance on repairing your Toowoomba solar system.

Yes. Express Electrical are accredited with the Clean Energy Council and are skilled at replacing or upgrading solar power systems across Toowoomba and the Darling Downs. Failure of an old solar inverter or solar panels may be an opportunity to upgrade to more reliable, modern and high efficiency solar inverter/solar panels where repairs are are more cost effective and possible. Talk to the Toowoomba electricians at Express Electrical for your upgrade options.

Express Electrical are licenced and authorised to sell and install all major brands of Toowoomba Solar inverters. Express Electrical recommend and install:

• Fronius Solar power inverters
•  Power One Solar power inverters
• Sungrow Solar power inverter 
• SMA Solar power inverters
• Zever Solar inverters

Yes. Express Electrical are accredited with the Clean Energy Council and are skilled at repairing and replacing Toowoomba solar power systems. Technology updates constantly. Failure of an old solar inverter or solar panels may be an opportunity to upgrade to a more reliable, modern and high efficiency inverter/panels where repairs are possible and more cost effective than ever. Talk to Brent or Anna about your options and get a Toowoomba electrician to upgrade your solar system anywhere in the Darling Downs.

Express Electrical are authorised to install all major brands of Toowoomba solar panels. We only recommend and install quality high efficiency solar panels to maximise the power generation and life of your system. Some of the more common brands include:

• DAQO Solar panels 
• Q-Cell Solar panels
• REC Solar panels 
• Risen Solar panels
• Sanyo Solar panels 
• Sharp Solar panels
• Suntech Solar panels 
• Trina Solar panels

The two types of solar panels available to the Toowoomba solar domestic and commercial market are Monocrystalline Solar panels and Polycrystalline Solar panels. 

The difference between polycrystalline and monocrystalline relates to the composition of the silicon substrate that’s used in making the solar cells in the panels. Monocrystalline refers to a single crystal whilst polycrystalline refers to many crystals.

The most common fault found with Toowoomba solar panels is when the glass cracks due to hail/storm damage and other circumstances. Other damage can include wiring and other connectivity problems. Depending on the type of fault, some can be repaired, although the options are limited. 

Generally speaking, damaged or faulty solar panels will need replacing. Contact Express Electrical for options relating to repairing and replacing your Toowoomba solar panels.

Upgrading your existing Toowoomba solar system may impact on your eligibility to continue receiving the Solar Bonus Scheme. 

The Queensland Government provides clear information regarding continued eligibility. Check out the following link for details: Visit the DEWS website for more details.

Express Electrical also recommends contacting your electricity supplier for further clarification.