Motorhome Solar Diagnostics & Repairs in Sydney
Don’t let a failing solar system cut your off-grid adventures short. If your panels are not charging or your regulator is throwing error codes, our expert technicians will pinpoint the fault and get your power flowing again.
Expert Fault Finding for Motorhome Solar Systems
True freedom on the open road relies on a dependable solar setup. When your system stops performing, it is easy to assume the panels are broken. However, solar failures can stem from degraded wiring, blown fuses, faulty regulators, or even the batteries themselves.
At Open Road Motorhomes, we do not just blindly replace expensive components. Our Glendenning workshop specialises in comprehensive solar diagnostics. We test your entire system from the roof to the battery bank, isolating the exact cause of the problem to provide a targeted, cost-effective repair.
Is Your Solar System Struggling? Common Symptoms We Check
If you are relying on generator power more often than you should, your solar system might be failing. We regularly diagnose and repair systems exhibiting these common issues:
Panels Not Charging
The sun is shining, but your battery monitor shows no incoming charge from the solar array.
Low Power Output
Your system is producing significantly less amperage than it used to, struggling to keep up with basic 12v appliance usage.
Regulator Error Codes
The solar charge controller is flashing warning lights, displaying error codes, or constantly resetting.
Overcharging Batteries
A critical fault where the regulator fails to stop charging, causing batteries to boil, swell, or become permanently damaged.
Intermittent Charging
The system cuts in and out unpredictably, often caused by loose connections, corroded wiring, or thermal cut-outs.
How We Test and Repair Your Solar Setup
Finding a solar fault requires a systematic approach. Here is what is included when you book a diagnostic assessment with our team:
Panel Output Testing
We measure the open-circuit voltage and short-circuit current of your roof-mounted panels to ensure they are actually generating power. We also inspect for physical damage, water ingress, or micro-cracks.
Wiring and Connection Checks
Solar cables are exposed to harsh UV rays and constant vibration. We test the integrity of the wiring from the roof down to the controller, checking for voltage drop, corrosion, and loose MC4 connectors.
Charge Controller (Regulator) Assessment
We test the solar regulator to confirm it is correctly converting the panel voltage and safely delivering the right charge profile to your specific battery type.
Battery Health Check
A solar system is only as good as the batteries storing the power. We load-test your house batteries to ensure they are capable of receiving and holding the charge.
Once we have identified the fault, we provide a clear, upfront quote for the necessary repairs, whether that means replacing a corroded cable, fitting a new MPPT regulator, or upgrading a damaged panel.
Solar Upgrades and Replacements
Sometimes, older solar systems are simply too degraded to repair economically, or they no longer meet your travel needs. If your system requires replacement, we supply and install high-efficiency panels and premium MPPT solar regulators from trusted brands.
Meet the Dream Team
We are your Motorhome and travel experts
David
Having left the UK in 2006, I travelled across the other side of the world on my own adventure ending up in Australia in early 2007.
With all my family and friends living in the UK, I had to build my own new network and get into the Aussie way of life.
By accident, I started working in the RV industry selling campervans, motorhomes and caravans to the thousands of adventurous spirits that call Australia home. I soon realized that these people all had the same passionate excitement for life, loved the freedom of exploring the country and were full of wisdom and stories from around the world.
I haven’t looked back and take great pride in being a part of such a life changing experience for the community of travellers that I meet every day.
Phil
“Genuine travel has no destination. Travellers do not go somewhere, but constantly discover they are somewhere else.” – James Carse
To me this quote says it all, it’s the reason why I love what I do.
Travelling is in my blood. I met the love of my life somewhere far from home and ever since we have been seeking new places and meeting new faces with our young family.
Now, together with Open Road Motorhomes, we are helping everyone live the life of their dreams.
Frequently Asked Questions About Motorhome Solar
Why is my solar panel showing voltage but not charging the battery?
This is a very common issue. It usually means the solar panel is generating power (voltage), but there is a break in the circuit preventing the current (amps) from reaching the battery. This could be a blown fuse between the regulator and the battery, a faulty solar regulator, or a severely degraded battery that refuses to accept a charge.
How do I know if my solar regulator is broken?
Signs of a faulty regulator include the unit feeling excessively hot to the touch, error codes on the display, a complete lack of lights/display, or the battery voltage rising above safe levels (overcharging). If the panels are producing power but the regulator shows zero output to the batteries, it likely requires replacement.
Can I mix different sizes or brands of solar panels on my motorhome?
While it is physically possible, it is generally not recommended unless they are wired through separate solar regulators. Wiring mismatched panels together in a single array can drag the performance of the entire system down to match the weakest panel.
Do motorhome solar panels lose efficiency over time?
Yes. Most quality solid solar panels degrade by about 0.5% to 1% per year. However, flexible panels (often glued directly to the roof) tend to degrade much faster due to heat buildup and lack of airflow, often failing entirely within 3 to 5 years.
Get Your Solar Power Back on Track
Contact our Sydney workshop today to book your motorhome in for a professional solar diagnostic check.
Workshop:
3 Enterprise Drive, Glendenning NSW 2761
