Solar panel repairs and fault finding
A solar system that has stopped producing – or is quietly producing less – costs you money every sunny day. Eco Solar Australia’s licensed technicians test your panels, wiring, isolators and inverter to find the real cause, explain it in plain English and give you a written quote before any repair. Systems installed by other companies are welcome.
- Fault found with proper test equipment, not guesswork
- Written quote before any repair work
- Any panel brand, any installer
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Our service team will call you shortly to book a technician. Need us sooner? Call 1300 475 830.
Solar repairs at a glance
The quick answers, with detail below.
- What we fix
- Low or no output, inverter errors, damaged panels, isolators, wiring and monitoring – common faults
- How we diagnose
- String testing, insulation testing, inverter logs and thermal checks – the process
- Response
- We start resolving issues within five working days
- Hours
- Monday to Saturday, 9am to 5pm
- Price
- Site assessment fee, then a written quote – what affects price
- Any brand
- Yes, including systems installed by companies no longer trading
- Where
- Melbourne, Geelong, Ballarat and regional Victoria – service areas
Signs your solar system has a fault
Many faults don’t announce themselves – the power just keeps coming from the grid. Watch for these.
- Your bill jumpedA higher bill with the same habits often means the system isn’t generating.
- Inverter screen is blank or redNo display, a red light or an error code on the inverter.
- Output well below last yearYour app shows much lower production for the same month, even after cleaning.
- Isolator or breaker keeps trippingThe solar breaker drops out or a rooftop isolator looks damaged.
- App offlineMonitoring stopped reporting, so you can’t tell what’s happening.
Quick question
Is your system quietly working for the grid instead of you?
Every day a fault goes unnoticed is a day of power you’ve already paid for and aren’t getting.
Common solar faults we fix
Most problems fall into a handful of categories. Finding which one is the skilled part.
Low or no output
We test each string, connector and the inverter to find exactly where power is being lost.
Inverter errors
Error codes, tripping and blank screens. See inverter repair and replacement.
Damaged panels
Cracked glass, hot spots, delamination and storm or hail damage assessed and replaced where needed.
Isolator and wiring faults
Water-damaged rooftop isolators, failed MC4 connectors and degraded DC cable repaired to Australian standards.
Earth and insulation faults
Moisture or damaged cable can cause isolation errors that shut the inverter down – we locate them.
Monitoring not working
Wi-Fi dongles, routers and app accounts reconnected so you can see your system again.
How a solar repair works
A clear diagnosis first, then a written quote – no surprises.
Tell us the problem
Call or use the form. A photo of the inverter screen or error code helps.
Site assessment
A technician attends and safely isolates the system. An assessment fee applies.
Diagnose
String voltages, insulation resistance, inverter logs and the roof are checked.
Written quote
You get the cause, the fix and the price in writing before any repair.
Repair & test
We repair, re-test and confirm the system is producing again.
What you can safely check vs what needs a technician
Solar panels produce dangerous DC voltage whenever the sun is up. Here’s where to draw the line.
| What you can safely do | What our technician does | |
|---|---|---|
| Inverter | Read and photograph the screen or error code | Reads fault logs and tests the inverter |
| Switchboard | Check whether the solar breaker has tripped | Finds why it tripped and fixes the cause |
| Panels | Look from the ground for damage or heavy dirt | Tests each string and inspects up close |
| Wiring & isolators | Don’t touch – DC can’t be switched off at the panels | Isolates safely and repairs to standards |
| Monitoring | Restart your router and check the app login | Reconnects or replaces the Wi-Fi module |
Repair or replace?
| Part | Usually |
|---|---|
| Rooftop isolator | Replace – cheap part, safety critical |
| MC4 connectors and DC cable | Repair the damaged section |
| Cracked or hot-spotting panel | Replace the panel (matching where possible) |
| Inverter under warranty | Manufacturer claim – we help |
| Inverter out of warranty | Compare repair, replacement or hybrid upgrade |
| Wi-Fi / monitoring module | Reconnect or replace the module |
If the whole system is old and underperforming, we’ll also show you what an upgrade would cost.
What affects the price?
A site assessment fee covers diagnosis. Any repair is then quoted in writing first. The price depends on:
- What’s failedAn isolator costs far less than a replacement inverter.
- Parts and warrantyWarranty claims can cover parts; out-of-warranty parts are quoted.
- Roof accessTwo storeys and steep pitches need extra safety equipment.
- LocationTravel to outer or regional areas is listed separately on your quote.
More services for existing systems
Once your system is running again, keep it that way.
Inverter repair & replacement
Error codes, no output or an ageing inverter.
Solar panel cleaning
Restore output lost to dirt and droppings.
Solar maintenance
Full inspection, electrical testing and a written report.
Battery health check
Capacity, firmware and settings tested.
Add a battery
Store your daytime solar for the evening.
Upgrade your system
When repairs no longer make sense.
Why choose Eco Solar for solar repairs
We install solar every week, so we know how systems should be built – and where they fail.
Licensed, experienced technicians
From a company that has installed 1,500+ solar and battery systems since 2016.
Orphaned systems welcome
Installer gone out of business? We’ll still look after you.
Written quote first
Nothing is repaired until you’ve approved the price in writing.
Dedicated service team
Two full-time service staff who start resolving issues within five working days.
Warranty help
We deal with manufacturers on warranty claims for panels and inverters.
Fixed properly
Repairs to Australian standards, re-tested before we leave.
Solar repairs near you
We repair solar systems across Melbourne and regional Victoria – see solar repairs Melbourne.
Melbourne regions
Solar repair FAQs
Do you repair systems installed by other companies?
Yes. Orphaned systems are welcome. A site assessment fee applies, and we give a written quote before any repair work.
How much does a solar repair cost?
A site assessment fee applies to diagnose the fault. You then get a written quote for the repair before any work goes ahead.
Why is my solar producing less than it used to?
Common causes are dirty panels, shading from new growth, a failed string or connector, a damaged panel or an inverter fault. A clean fixes the first; the others need testing to find.
My inverter shows an error – is it safe?
Don’t open the inverter or touch rooftop isolators. Turn the system off at the switchboard following the shutdown procedure on your inverter label, photograph the error and call us.
Can storm or hail damage be claimed on insurance?
Often, yes. We can assess the damage and give you a written report and quote to support your claim.
How quickly can you come out?
Our two full-time service staff answer your call and start resolving issues within five working days. We work Monday to Saturday, 9am to 5pm.
Get your solar working again
Book a fault-finding visit with licensed technicians, a clear diagnosis and a written quote before any repair – on any brand, from any installer.
- Written quote before work
- Any brand, any installer
- Re-tested before we leave