Get your solar system generating again. Fast diagnosis and fixed-price swap. We replace failed and underperforming solar inverters across Sydney. String inverters, microinverters, and hybrid battery-ready inverters all within our scope. We diagnose first and quote before touching anything.
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A solar inverter converts DC electricity from your roof panels into 230V AC electricity your home can use. It also manages the connection to the grid, monitors generation, and shuts down safely when the grid fails. When an inverter fails, your solar system stops generating entirely or operates below expected output.
Inverter replacement involves safely de-energising the existing unit, disconnecting AC and DC wiring, removing the old inverter, mounting the new unit, reconnecting cabling, configuring the new inverter to match your panel array, commissioning the system, and testing output. Where the replacement is a different brand or higher capacity, string configuration may need adjustment.
In NSW, solar inverter replacement is notifiable electrical work. We hold Contractors Licence 493243C and CEC accreditation. We manage warranty claims with inverter manufacturers where applicable and notify your distributor under the AS/NZS 4777 requirements where a changed connection affects the grid export limit.
A failed inverter stops all solar generation until it is replaced. Most Sydney residential inverter replacements can be completed within one to three days of assessment. We carry common replacement models or can source specific units from Australian distributors.
A string inverter is a single unit that manages the combined DC output of all panels connected to it in series (a string). It is the most common type in Sydney homes installed before 2020. String inverters are cost-effective and simple. Their main limitation is that the lowest-performing panel limits the whole string. String inverters typically have a 5 to 10-year warranty.
A hybrid inverter handles both solar panel input and battery storage input/output. It manages charging the battery from solar, discharging to the home, and grid interaction from a single unit. Replacing a standard string inverter with a hybrid is the most efficient way to retrofit battery storage to an existing solar system.
Microinverters attach to each individual panel and convert DC to AC at the panel level. Failed microinverters affect only one panel, not the whole array. Enphase is the dominant microinverter brand in Australia. Replacing a single microinverter requires working on the roof and matching the existing Enphase generation.
Many inverter failures within the warranty period are covered by the manufacturer. Warranty claims typically require a fault report from a licensed electrician. We document the fault, photograph the inverter and installation, and submit warranty claims on your behalf to major manufacturers including Fronius, SMA, Sungrow, Goodwe, and Enphase. Approved claims are usually fulfilled within two to four weeks.
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The clearest sign is zero or near-zero generation reported in your monitoring app or on the inverter display when conditions should be producing power. Other signs include a fault code on the display, the inverter not switching on in the morning, unusual sounds, or a tripped AC isolator that keeps switching off. We diagnose remotely from your fault code in many cases before attending site.
Labour for a like-for-like string inverter replacement typically costs $400 to $900, depending on the inverter size and wiring configuration. Hybrid inverter replacements run higher due to additional configuration and battery integration work. We include the inverter hardware in a single fixed-price quote after confirming the correct replacement model.
Usually yes. Most solar panels connect to an inverter via standard DC cables, so a brand change is possible. The new inverter must be compatible with your panel string voltage and current, your grid export limit, and AS/NZS 4777 requirements. We confirm compatibility before ordering the replacement unit.
Yes. We document the fault, prepare the technical fault report the manufacturer requires, and submit the warranty claim on your behalf for major brands. Approved warranty replacements are typically fulfilled within two to four weeks. During the claim period your system will not generate, so we discuss whether a faster paid replacement is worth considering if you have significant solar generation.
If you plan to add battery storage within the next few years, replacing your failed string inverter with a hybrid makes sense. The incremental cost difference between a quality string inverter and a hybrid at replacement time is much smaller than the cost of replacing the inverter again later for battery integration. We model the economics and advise based on your plans.
A straightforward like-for-like string inverter replacement typically takes two to four hours. Hybrid inverter installations with more complex wiring take four to six hours. We schedule a half-day or full-day time block depending on the scope and confirm the installation window with you before the day.
Describe your electrical issue or project and we'll schedule a time to assess the situation.
Our technician examines the work required and gives you a transparent price before anything begins.
We finish on time, clean up after ourselves, and ensure everything meets code and your expectations.
From booking through to final checks, we manage the details so you can get the job finished right.
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