Solar inverter replacements
From inverter faults and error messages to ageing equipment, we’ll help identify the problem and work out the right next step for your solar system.
Inverter faults
When your solar system stops generating, the inverter is often the first place people look. But an error message or loss of generation doesn’t always mean the inverter itself has failed.
The issue could be related to the inverter, solar panels, wiring, connectors, protection devices or another part of the installation.
We’ll assess the problem, explain what we find and help you decide whether repair, replacement or further investigation is the right next step.
Common problems
Fault codes, warning lights or recurring alarms.
Your monitoring shows little or no generation when the system should be producing power.
The inverter repeatedly disconnects or stops operating.
Older equipment experiencing reliability problems or reaching the end of its serviceable life.
Missing data, offline monitoring or communication problems that may not necessarily indicate a generation fault.
Unexpected drops in generation or inconsistent system operation.
See also:Solar PV SystemsBattery StorageSolar Health ChecksSolar & BatteriesSolar in HeathridgeSolar in Mullaloo
Replacement options
Once we know what’s happening, there are usually three pathways to think about. Which one suits you depends on what we find.
A straightforward replacement.
If your existing panels are in suitable condition and you’re happy with your current system, a compatible replacement inverter may be all you need. We’ll review the electrical and panel specifications before recommending an appropriate model.
Thinking about adding a battery later?
Replacing a failed inverter can be an opportunity to consider a compatible hybrid model that supports future battery storage. We’ll help you understand whether a hybrid upgrade makes sense for your existing solar system and what future battery options it may support.
Time for a bigger change?
If the existing system is ageing, undersized or no longer suits your household, we’ll discuss whether a broader solar upgrade is worth considering. A complete replacement is not automatically necessary just because an inverter has failed.
Explore Solar PV Systems →Existing solar panels
A failed inverter doesn’t automatically mean your solar panels need replacing.
Many existing arrays can continue operating with a suitable replacement inverter, provided the panels, wiring and installation are in acceptable condition and the new equipment is electrically compatible.
We’ll review the relevant system specifications and installation condition before confirming the available options. Here’s what we look at:
Hybrid & battery-ready options
If you’re considering battery storage in the future, it’s worth discussing your plans before choosing a replacement inverter.
A compatible hybrid inverter may provide a pathway to battery storage, but the right choice depends on your existing panels, electrical supply, proposed battery and future energy needs.
We’ll explain the options without pushing you into equipment you don’t need.
A hybrid inverter is not compatible with every battery.
Hybrid does not automatically mean blackout backup. Backup may require additional equipment and electrical work.
Inverter sizing and network approvals must be considered.
An AC-coupled battery may be an alternative to replacing a functioning inverter.
Our process
Step 01
Share your inverter brand, model, symptoms and any displayed error codes.
Step 02
We investigate the fault and review the condition and compatibility of relevant equipment.
Step 03
We explain whether repair, replacement or a broader upgrade is appropriate and provide clear pricing for the agreed work.
Step 04
If replacement is required, we install the suitable inverter, complete applicable testing and commissioning and explain the system’s operation.
Why Westcoast
When your solar isn’t working, you want to understand what’s gone wrong and what it’ll take to fix it.
We’ll investigate the issue, explain your options and help you choose a solution that makes sense for the system you already have.
If a replacement inverter is the right answer, we’ll look at compatibility, performance and future plans before recommending equipment.
Carried out by a licensed electrical contractor.
Both founders hold Solar Accreditation Australia accreditation.
We find out what’s wrong before recommending anything.
Plain-English explanations of what we find and what it means.
Clear pricing for the agreed work, so you know what to expect.
You decide the next step, with the trade-offs explained.
Recent inverter work
A closer look at the inverters we work on.
FAQs
Quick answers to common questions. If yours isn't here, give us a call.
Common signs include error codes, warning lights or a system that isn’t generating as expected. However, these symptoms can also be caused by other electrical or system faults. Testing is needed to confirm the cause.
Often, yes. If the existing panels and wiring are suitable and a compatible replacement inverter is available, the array may be retained.
Sometimes. It depends on the existing panel specifications, electrical configuration and the hybrid inverter’s requirements. We’ll assess whether a hybrid upgrade is appropriate.
That depends on the inverter’s condition, repair options, age and the suitability of the remaining solar system. We’ll explain the practical options before recommending replacement.
Many straightforward replacements can be completed within a day, but timing depends on the existing installation, compatibility, required electrical changes and any applicable approvals.
Monitoring compatibility varies by manufacturer and model. A replacement inverter may require a different monitoring platform or communication setup.
A properly functioning replacement can restore generation lost because of a failed inverter. Any further performance improvement depends on the original equipment, system condition and design. A new inverter doesn’t automatically increase the panels’ generation potential.
Not automatically. Backup depends on the specific inverter, compatible battery, switching equipment and electrical installation.
Approval and notification requirements depend on the proposed equipment, existing system and current network rules. We’ll confirm the applicable requirements before proceeding.
Your inverter brand and model, any error codes, approximate system age and a description of the problem are useful. A clear photo of the inverter display and labels can also help with the initial assessment.
Get in touch
Tell us what your inverter is doing, and we’ll help you work out the next step.
Have your inverter brand, model or error code handy? Include it in your enquiry if you can.
