As electric vehicles become the standard on Surrey’s roads, the convenience of home charging has shifted from a luxury to a daily necessity. Whether you’ve recently upgraded to an EV or you’ve been driving one for years, your home charging point is likely one of the hardest-working appliances in your household.
However, many homeowners in Redhill and the surrounding areas fall into a common trap: the "fit and forget" mentality. Because EV chargers have no moving parts, it is easy to assume they require zero upkeep. In reality, neglecting basic maintenance can lead to slower charging speeds, communication errors with your vehicle, and even safety hazards that could have been easily avoided.
As your local electrician in Redhill, ADS Electrical has seen firsthand the issues that arise when chargers are neglected. To help you protect your investment and ensure your car is always ready to go, we’ve outlined the seven most common maintenance mistakes and how you can fix them today.
1. Treating Your Charger as "Fit and Forget"
The most significant mistake is assuming your charger will work perfectly forever without a single check. While modern units are incredibly robust, they are subject to the harsh British weather, fluctuating electrical loads, and physical wear.
The Fix: Implement a "visual and functional check" every three months. You don’t need to be a technical expert to do this. Simply look for cracks in the casing, ensure the mounting is still secure against the wall, and check that the indicator lights are the correct color (usually green or blue). A five-minute inspection can catch a small crack before it becomes a major water ingress issue.
2. Neglecting Cable Care and Storage
It’s tempting to leave your charging cable sprawled across the driveway after a long day at work. However, cables are frequently damaged by being driven over, stepped on, or left in puddles. Crushed internal wires or frayed insulation are leading causes of intermittent charging and, in extreme cases, electrical shorts.
The Fix: Always use the built-in holster or hook provided with your unit. Avoid coiling the cable too tightly, as this can cause internal stress on the copper wiring. If you notice any cuts, bulges, or exposed wires, stop using the charger immediately and contact a professional for EV charging solutions Redhill.
3. Ignoring Software and Firmware Updates
In 2026, EV chargers are as much about software as they are about hardware. Many "faults" reported by users are actually software glitches that could be solved with a simple update. Manufacturers frequently release firmware to improve compatibility with newer car models and to optimize energy usage during off-peak hours.
The Fix: Open your charger’s companion app at least once a month. Check for any pending notifications or firmware updates. If your charger doesn't have an app, check the manufacturer's website using your serial number. Keeping your software current ensures your unit remains compatible with the latest vehicle technology and safety protocols.
4. Using Unsafe Cleaning Methods
While you want your home to look its best, taking a pressure washer to your EV charger is a recipe for disaster. Even "weatherproof" units are not designed to withstand high-pressure water jets directed at seals or charging ports. Similarly, harsh chemical cleaners can degrade the plastic casing over time, making it brittle and prone to cracking.
The Fix: To clean your charger, use a damp (not dripping) microfiber cloth with a mild detergent. Wipe the exterior casing and the cable, then dry it with a separate cloth. Never spray water or cleaning products directly into the connector pins. For the pins themselves, a gentle puff of compressed air or a dry cotton bud is usually sufficient to remove dust or debris.
5. Overlooking Port Contamination
The connector that plugs into your car is the most vulnerable part of the system. Dirt, grit, and moisture can accumulate inside the "head" of the charger. This contamination can prevent the locking mechanism from engaging properly, leading to "Session Failed" errors on your dashboard.
The Fix: When not in use, always keep the connector in its designated dock. This prevents it from picking up dirt from the ground or moisture from the air. Periodically check the metal contacts for signs of corrosion or "pitting." If the connector feels crunchy or difficult to plug in, it likely needs a professional cleaning or replacement.
6. DIY Internal "Repairs"
With the rise of YouTube tutorials, some homeowners feel empowered to open their charger casing to investigate a fault. We cannot stress this enough: do not do this. EV chargers handle high voltages and have sophisticated safety components like RCDs (Residual Current Devices) that require specific testing equipment to verify.
The Fix: If your charger is tripping your fuse board or showing a persistent red fault light, the only safe "fix" you can perform is a power cycle (turning it off at the consumer unit for 30 seconds and turning it back on). If the fault persists, you must call a qualified electrician in Redhill. Attempting a DIY repair will void your warranty and, more importantly, put your home at risk of fire. You can learn more about what to look for in a professional in our guide on choosing the right electrician.
7. Skipping Professional Inspections
Just like your car needs an MOT, your home electrical system: including your charger: benefits from professional oversight. Over time, electrical connections can loosen due to thermal expansion (the heating and cooling that happens during every charge cycle). Loose connections create heat, which can lead to melted components or fire.
The Fix: We recommend a professional inspection every 1–2 years. An electrician can check the torque of the internal connections, test the earthing system, and ensure the RCD is tripping within the required millisecond timeframe. This is especially important if you are a landlord; ensuring your EICR certificates are up to date is a legal requirement that should include your EV infrastructure.
Your EV Maintenance Checklist
To make things easy, here is a quick summary of what you should be doing to keep your ev charger installation in Surrey running smoothly:
| Frequency | Task |
|---|---|
| Weekly | Store cable on the holster; check for driveway debris. |
| Monthly | Wipe casing with a damp cloth; check for app updates. |
| Quarterly | Visual inspection for cracks or discoloration; check cable for wear. |
| Annually | Book a professional health check with a local electrician. |
When to Call the Experts
While the tips above will help you avoid the most common pitfalls, some issues require immediate professional intervention. If you notice a burning smell, scorch marks on the plug, or if your consumer unit trips every time you plug in your car, stop using the unit immediately.
At ADS Electrical, we pride ourselves on being the go-to experts for EV charger installation in Surrey. We offer free quotes within 24 hours and can help you troubleshoot any issues with your current setup. Don't wait for a total failure to occur: proactive maintenance is the key to reliable, safe, and efficient home charging.
Whether you need a new installation or a safety check on your existing unit, our team is ready to help. Contact ADS Electrical today to ensure your home charging setup is performing at its best.