Solar PV & Battery System Maintenance Manual (Grid-Connected System)

Safety Information & Precautions

Your solar PV and battery system is a high-voltage electrical system – safety is paramount. This section outlines key safety advice for homeowners. Please follow these precautions to avoid injury or damage:

General Electrical Safety – 

Treat your solar equipment as you would any other live electrical source. Do not touch any exposed wiring or terminals. Even when the main switch is off, solar panels generate electricity when exposed to light, so parts of the system (like panel cables) remain energized during daylight. You should never attempt to open or repair the inverter, battery, or any electrical components yourself – always call a licensed electrician for any repairs or internal servicing. There are dangerous voltages present at all times when the sun is shining, and even batteries store substantial energy that can be hazardous if mishandled.

Shut-down Procedure – 

At installation, you should have been shown how to safely shut down your solar PV system in an emergency or for maintenance. This typically involves turning off the AC Solar Supply Main Switch (at your switchboard) and the PV array DC isolator (near the inverter), in the correct sequence as per your inverter manual. Familiarize yourself with the location of all isolation switches for your system – including the solar AC isolator, DC isolators, and battery disconnect switch (if applicable). We recommend labeling these clearly (if not already labeled) and keeping the shut-down instructions (usually provided by the installer) handy. Only operate these switches if necessary and safe to do so – for example, if instructed by emergency services or if there’s an immediate safety issue like sparking. When turning the system back on, always follow the start-up procedure (usually the reverse order of shutdown: turn on DC isolator, then AC mains, etc., as per manufacturer instructions). If you are unsure, contact us for guidance.

Roof Work and Panel Access – 

Exercise extreme caution if you need to access your roof near the solar panels (for instance, to clean gutters or retrieve an object). Metal ladders or tools can conduct electricity – keep them away from panel wiring. Do not touch or lean on solar panels during any roof work. Panels are slippery and can be high voltage. It’s best to avoid stepping on the roof near the panels altogether unless you have proper safety equipment and training. For tasks like cleaning panels on a second-story roof or adjusting anything around panels, it’s safer to hire a professional. Also, be mindful when doing activities like installing Christmas lights or antennas near the solar array – avoid contacting any part of the solar system.

Maintenance Safety – 

Before any cleaning or maintenance that involves touching the panels or inverter, it is safest to shut down the system following the recommended procedure (mentioned above). For example, if you plan to hose off the panels and you must use a ladder or get somewhat close, shut down as a precaution. Always work with a partner when climbing ladders or roofs, use proper fall protection, and only work in good weather (dry conditions, not in the wet). Wear non-slip shoes and use insulated tools if any tool use is needed near electrical parts. Never bypass or tamper with safety devices: all switches, fuses, and circuit breakers in your system are there for safety. If a breaker has tripped, do not hold it in the “on” position – it tripped for a reason; investigate or call us.

Damage or Faults – 

Regularly look (from the ground) for any signs of damage to your system, especially after storms. This might include cracked or broken panels, loose wires, a water-damaged isolator box, scorch marks, etc. If you suspect damage (for instance, you see a panel cracked from hail, or you smell smoke, or the inverter shows an error), immediately shut down the system if it is safe to do so, and contact us or a licensed solar electrician. Do not touch broken panels or exposed wires – damaged panels can still be live and pose a shock and fire risk until they are isolated and repaired. Leaving damaged solar components unchecked can result in electrical failures, electric shock or fire, so prompt professional repair is essential.

Severe Weather and Emergencies: In the event of severe weather (such as major storms, flooding, or bushfire), your solar/battery system may sustain damage or may behave unexpectedly. After any major storm or flood, do not re-energize or restart your solar system until it has been checked by a licensed electrician. For example, if your area was flooded and you turned off the solar system during evacuation, have it inspected before turning it back on – floodwater can damage inverters and batteries, creating hazards. If your roof sustains damage (e.g. many panels smashed by hail), isolate the solar system (if not already off due to grid outage) and stay clear of the area. Remember, panels remain live even if shattered – broken panels can still produce electricity and potentially spark. In any situation where you see fire, sparking, or smoke coming from any solar or battery equipment, treat it as an electrical fire emergency: evacuate the area and call 000 immediately. Do not attempt to extinguish an electrical or battery fire with water – only use a fire extinguisher if you are trained and it is safe (and never try to fight a lithium battery fire yourself – it can be very dangerous). Firefighters are trained to handle solar electrical fires; inform them about the solar panels and battery so they can isolate the system. As a precaution, it’s wise to keep a clear path to your inverter and battery unit, so emergency responders can access them if needed.

Ventilation and Environment – 

Your inverter and battery (if any) should be installed in locations that are ventilated and sheltered as per the installer’s design. Do not enclose or cover these units, and ensure nothing has been piled around them that could cause overheating. Inverter heat sinks (cooling fins) should be cleaned of dust/spider webs gently (with the system off) if buildup occurs, to allow proper cooling. For batteries, maintain a shaded, cool environment – high ambient temperatures can reduce battery life. If the battery is in a garage or shed, avoid running vehicles or fuel-burning engines in the same enclosed space, as exhaust and high heat can impact it. Also, avoid storing flammables near the inverter or battery (as mentioned, keep the area clear).

Children and Pets – 

Ensure that children do not play on the roof or near the inverter/battery. Teach kids that the solar equipment is not to be tampered with. Inverters are often at child-accessible height; consider a safety lock on the inverter cabinet (if it has a door) if you have curious young children. Pets should also be kept from chewing any exposed wiring (typically wiring is all enclosed in conduits, but check that nothing has become exposed).

Signage and Emergency Information –

Your installer should have provided warning labels on the switchboard and other parts of the system (per Australian Standards). Do not remove or obscure these labels – they provide crucial information to anyone working on the electrical system (e.g., a main switchboard label indicating solar is connected). If any signage or labels have fallen off or faded, let us know; we can replace them. The system’s Emergency Shut Down Procedure placard should be clearly displayed near your inverter or switchboard. Ensure it remains visible and legible. We also recommend that you keep a copy of this manual (or at least the shutdown instructions and our contact info) in an accessible place, and that all adult household members know the basics of how to shut down the system in an emergency.

By following these safety guidelines and using common sense, you can operate your solar PV and battery system confidently. If you ever have a safety concern or are unsure about something, please contact RK Solar & Consulting Services Pty Ltd for advice before proceeding.

Troubleshooting Guide – Common Issues & Solutions

Even well-designed solar systems can encounter occasional issues. Below is a guide to help you troubleshoot some common problems. If an issue persists or you are uncomfortable performing any check, always contact a professional. There is no such thing as a “silly question” when it comes to safety or your system’s performance – we are here to help.

No Solar Power Output (Inverter appears off) – Issue: The system is producing no power (e.g., the inverter has no lights or the monitoring app shows zero solar generation in daytime). Possible Causes & Solutions: First, verify it’s daytime and sunny enough (solar output early morning, late evening, or during heavy rain may be near zero, which can be normal). If it’s mid-day and clearly sunny but output is zero, check the inverter’s indicator lights. If no lights are on at all, the inverter may not be receiving power. Check your switchboard: see if the solar supply main switch or inverter AC isolator has tripped OFF. It will usually be labeled (e.g., “Solar Supply Main Switch”). If it is off, and you know no work was being done, you can try to reset it by switching it on – only once. If it immediately trips back off or there is a sparking sound, leave it off and call us – this indicates a fault. If the AC isolator was on, also check the DC isolator near the inverter (a grey or black rotary switch) – it should be in the “ON” position (aligned with ‘1’ or ‘ON mark’). If it was off (or if someone turned it off for maintenance and forgot to turn back on), switch it on. After ensuring isolators are on, give the inverter a few minutes to reconnect; if it still shows no activity, note any display messages (if the screen is blank, that suggests no power either DC or AC). At this point, contact our service line for further assistance. There could be an issue such as a blown fuse, a tripped rooftop isolator, or an inverter fault – all of which require a technician. Do not open any covers to investigate internal fuses or wiring yourself.

Inverter is ON but Not Producing / Error Message Displayed – Issue: The inverter has power (lights on) but it’s not exporting energy, or it shows an error code (often accompanied by a red or orange fault light). Possible Causes & Solutions: The inverter will shut down under certain conditions to protect the system. Common error messages might include “grid fault,” “DC isolation fault,” or “earth fault,” etc. These are technical faults: record the error code or message shown on the inverter screen. Some errors can be transient (e.g., grid voltage spikes can trigger an error – the inverter may auto-reset after a few minutes). If the fault light stays on, try a system reboot: follow the shutdown procedure (turn off AC solar supply, then DC isolator), wait 5 minutes, then turn DC isolator on, then AC on. This can reset the inverter’s internal systems. If normal operation doesn’t resume (or the fault returns), it needs professional attention. Contact us with the error details. Do not continually reset a persistently faulting inverter, as that might exacerbate a problem. Many inverter errors require diagnosis by an accredited technician. If the error is “Grid Voltage High” or similar, that could be an issue with the local network; you might observe the inverter repeatedly disconnecting during peak sun. In such a case, inform us – we may need to coordinate with the utility or adjust settings. Important: If you ever smell burning or hear loud popping from the inverter, shut it down and call us immediately.

Lower Than Expected Solar Performance – Issue: You notice your solar system’s energy production is lower than normal or not meeting expectations (e.g., your electricity bill is higher than anticipated, or the monitoring shows unusually low kWh on sunny days). Possible Causes & Solutions: First, consider seasonal differences – solar output is lower in winter and on very cloudy days. However, if output is significantly reduced in good sun, the most common cause is dirty panels or new shading. Inspect the panels visually: are they covered in dirt, dust, bird droppings, leaves or other debris? Even a partial shading or dirt layer can “block light and reduce their efficiency”. Clean the panels following the safe procedure described in maintenance (or hire a cleaner). Also consider if any trees have grown or structures were added that cast shade on the array during peak hours – if so, trimming or other solutions may be needed. Another cause can be hot weather – very high temperatures can slightly reduce panel efficiency; this is usually normal. Check the inverter’s output reading versus a similar time last month if you have records; if there’s a sharp drop with no clear reason, you may have an issue like a failing panel or inverter clipping. Check the inverter display for any subtle warnings (some inverters log “derating” events or might show if a string of panels is underperforming, etc.). If cleaning and obvious checks don’t resolve it, contact us for a performance check. We can analyze if perhaps a panel or part of the system is faulty (many inverters have multiple “MPPT” inputs, so one string of panels failing could halve production without giving a clear alarm). Our technician can test each panel string and the inverter to pinpoint any issues. It’s also a good idea to compare your current energy output to past output (if monitoring portal provides this) – a healthy system will have a consistent pattern year-over-year, adjusted for weather.

Battery Not Charging or Discharging – Issue: Your battery doesn’t seem to charge during the day or discharge when you expect it to (for example, it stays at a certain percentage, or home draws from the grid at night even though battery is not empty). Possible Causes & Solutions: First, understand the battery’s operational mode: Many battery systems are configured with specific modes in the inverter software (e.g., Self-Consumption Mode, Time-of-Use Mode, Backup Reserve setting, etc.). If the battery is not discharging at night, check if it’s intentionally reserving charge for backup (some systems keep, say, 20% as backup reserve and won’t discharge it unless grid fails). Or it may be set not to discharge if grid power is cheap at that time. Likewise, if it’s not charging, perhaps it’s already full or the system hit its limit for the day. Use the battery’s smartphone app or interface to see its status and settings. If the battery is at 100% in midday but not discharging later, it might simply have no load if you were away (so nothing to power). However, if the battery is at a low state of charge and should be charging (sun is out), but isn’t, then there could be an issue. Check for any error indications on the battery monitor or inverter. Some hybrid inverters will show a code if the battery is disconnected or if there’s a communication fault. Ensure that any battery isolation switch (some systems have a separate battery circuit breaker or fuse) is in the ON position. If accessible, also check the switchboard for a breaker labeled “Battery” or “Backup” – ensure it hasn’t tripped. If all switches are on and no obvious error is shown, but the battery still does not charge/discharge, reach out to us. Battery systems are complex and may require a firmware update or a deeper check. Note: If your system has a separate backup panel for critical circuits, remember that only those circuits will be powered during a blackout. For example, your battery might discharge at night to supply your fridge and lights on the backup circuit, but if you turn on a large load that’s not on the backed-up sub-board, you’ll still pull from the grid – this could be mistaken for the battery “not discharging.” Understanding which circuits are backed by the battery is important (see your installation paperwork or ask us if unsure).

House Loses Power During Blackout (with Battery installed) – Issue: There is a grid outage and you expected your battery to power the house, but the power still went off. Possible Causes & Solutions: Not all solar batteries provide backup power in an outage – some are designed for energy saving (self-consumption) only, and do not form a standalone power supply when the grid is down. Check your system’s specs: if you have a backup-capable system, there will be a separate backup circuit or critical load panel. Only those dedicated circuits get power during an outage (for safety and capacity reasons). If you mistakenly had non-backed circuits (like your entire home) expecting power, that explains it – the battery is likely functioning normally, preserving its charge to supply only the backup loads. If you do have critical loads designated and none of them have power in an outage, a few possibilities: The battery might have been at 0% when the outage hit (so it had no charge to give). Or there could be an issue with the backup transfer switch or gateway. First, check the battery’s charge level and any error lights. If the outage is extended, you may need to wait for solar to recharge the battery when sun comes out. If the battery had plenty of charge but still no backup, it could be a fault – once the grid returns, please contact us to investigate. It’s also worth noting, for systems with generator or multi-mode settings, incorrect settings can prevent islanding. Never attempt to jury-rig the system during a blackout (like moving wires) – the inverter’s anti-islanding is a critical safety feature solar.vic.gov.au. Always let the system operate automatically. If you live in an area with frequent outages and you’re unsure if your current setup is intended for backup, talk to us – we can clarify your system’s capabilities or discuss upgrades if needed.

Unusual Noises or Smells – Issue: You hear buzzing, crackling, or other strange sounds from the inverter or battery, or notice a melted plastic/electrical burning smell. Possible Causes & Solutions: Slight humming from an inverter is normal when it’s operating (especially the transformer-based ones) – that’s just the electronics. However, loud buzzing or crackling could indicate an electrical arc or fault. A burning smell is a serious red flag. Immediately shut down the system (following the shutdown steps) if you safely can, and call us. Do not ignore these signs – they could precede a component failure. Sometimes an inverter’s fan may make noise if clogged with dust – a gentle vacuum of the vents (externally) when the unit is off could help, but only do this if you’re comfortable and the unit is safely isolated. If the battery makes popping sounds or hissing, that is very unusual – shut off and get help right away.

In all cases, if you are not sure or comfortable performing a check, do not hesitate to contact RK Solar & Consulting Services Pty Ltd, We can often talk you through simple steps over the phone. Remember, your system also comes with manufacturer documentation (inverter manual, battery manual, etc.) – refer to those for specific error codes and troubleshooting steps specific to your models. We have provided those documents in your handover package (or links to digital versions). It’s a good idea to keep those manuals together with this maintenance guide for easy reference.

Finally, as a NETCC-approved seller, our goal is to provide a “high standard of support” – so we aim to address any issues promptly and ensure your warranties are honored. If something isn’t right, we’ll work with you to fix it.

Installer Contact & Support Information

If you have any questions about your solar PV and battery system, need maintenance service, or in the event of any problems or emergencies, please contact us immediately. We are here to assist you and ensure your system operates safely and efficiently throughout its life. Our support includes warranty service for system components and general guidance for using your new energy technology.

Business Hours: Monday–Friday, 9am–5pm

When contacting us, please have your system details handy (install address and date, and if possible the inverter/battery model or serial number). This helps us quickly lookup your installation record. We may ask a few troubleshooting questions (as in the guide above) to assess the situation. If the issue cannot be resolved remotely, we will schedule a technician visit under warranty if applicable, or advise you of the next steps.

Warranty and Service: All your system components come with manufacturer warranties (e.g., panels typically [25] years product warranty and [25] years performance guarantee, inverters around [10] years, and batteries [10 ] years ). RK Solar & Consulting Services Pty Ltd will assist you in making any warranty claims should a component fail within its warranty period – we handle the process with the manufacturer on your behalf. Just notify us if you observe a suspected component failure. We also stand by our installation with a workmanship warranty of [10] years, meaning any issues due to our installation will be fixed at no cost to you during that term. Refer to your contract or warranty documentation for full details on coverage. We keep records of your system, so we can quickly identify parts and warranty dates.

NETCC Compliance: As a signatory to the New Energy Tech Consumer Code, our company is committed to fair and transparent customer service. This includes providing you with all necessary information for the safe, effective and optimal use of your system (hence this manual), as well as honest after-sales support. If you ever have any concerns or feel something hasn’t been addressed to your satisfaction, please let us know. We take customer feedback seriously and will work to resolve any issues in line with the code’s standards. You can find more about your consumer rights and the NETCC on the official website or consumer guides – for instance, Energy Consumers Australia has free Consumer Guides (such as a Guide to Using Solar) available for download. We encourage you to utilize these resources to better understand your system and rights.

Additional Resources for Customers –

For general tips on maintaining and maximising your solar PV system, see the government’s consumer guide (e.g., Solar Victoria’s maintenance guide which advises servicing every 2 years and offers cleaning tips).

The Clean Energy Regulator also provides advice on solar panel maintenance and safety checks, emphasizing regular maintenance to keep the system safe for you and for any electrical workers who may service it.

You can verify our installer’s accreditation via the Clean Energy Council if needed, or find independent information on solar technology from bodies like the Australian Energy Regulator and Energy Consumers Australia.

We are always happy to answer any questions you have about your solar PV and battery system. Our goal is to ensure you get the maximum benefit – in savings and peace of mind – over the life of the system. Thank you for choosing RK Solar & Consulting Services Pty Ltd as your solar technology partner.