As we move through 2026, electric vehicles have become the standard for Surrey commuters. Whether you’re navigating the M25 or heading into London from Redhill, having a reliable home charging point is no longer a luxury: it’s an essential part of daily life.
However, at ADS Electrical, we’ve noticed a growing trend. Many homeowners treat their EV chargers like a standard plug socket: they install it and forget it. But an EV charger is a high-powered piece of technology that handles massive amounts of electrical current for hours at a time. Neglecting its upkeep doesn't just lead to "range anxiety" when your car hasn't charged overnight; it can also lead to expensive repairs or even safety hazards.
If you want to ensure your charger lasts for the next decade, you need to avoid these seven common maintenance mistakes. Here is how to keep your home charging point Surrey in peak condition.
1. Ignoring Firmware and Software Updates
In 2026, EV chargers are "smart" devices. Much like your smartphone or laptop, they rely on internal software (firmware) to communicate with your car, manage electricity loads, and connect to your home Wi-Fi.
The Mistake: Many users ignore the notifications on their charging apps or fail to connect their charger to the internet entirely. Outdated firmware is one of the leading causes of "ghost" charging failures, where the car and charger fail to "handshake" and the session never starts.
The Fix: Check your manufacturer’s app (such as Zappi, Ohme, or Wallbox) at least once a month. Ensure the charger is connected to a stable Wi-Fi signal. If your charger is located in a signal "dead zone" on your driveway, consider a Wi-Fi extender or a hardwired ethernet connection to ensure it receives critical security and performance updates automatically.
2. Poor Cable Management: The "Tangled Web"
Whether you have a tethered charger (cable attached) or an untethered one (bring your own cable), how you handle that wire matters.
The Mistake: We often see cables left sprawled across driveways in Redhill, where they are stepped on, driven over, or allowed to kink. Repeatedly driving over a high-voltage cable can cause internal micro-fractures in the copper wiring, leading to overheating or intermittent charging. Furthermore, leaving the connector lying in a puddle can lead to terminal corrosion.
The Fix: Always coil your cable neatly after use. If your charger doesn't have a built-in holster, install a dedicated wall hook. This prevents "cable memory" (where the wire becomes permanently twisted) and keeps the sensitive pins in the connector away from moisture and dirt.
3. Neglecting Weekly Visual Inspections
You don't need to be a qualified electrician in Redhill to spot the early warning signs of a failing charger.
The Mistake: Assuming that because the "green light" is on, everything is fine. Small cracks in the plastic casing, loose wall mountings, or signs of discolouration (yellowing or browning) around the plug can indicate heat build-up long before a total failure occurs.
The Fix: Once a week, take 30 seconds to look at your unit. Check for:
- Any cracks in the housing where water could enter.
- Burn marks or a "fishy" smell (a classic sign of electrical arcing).
- Debris, spider webs, or wasps' nests inside the plug socket or cooling vents.
4. The "Pressure Washer" Cleaning Blunder
We all like a clean driveway, but your EV charger isn't a garden gnome.
The Mistake: Using a high-pressure washer or harsh chemical cleaners to wash down the charger while cleaning the car or the house. While most chargers are IP-rated (weatherproof), they are not designed to withstand high-pressure jets aimed directly at the seals. This can force water into the internal electronics, causing a short circuit or long-term corrosion.
The Fix: Use a slightly damp microfibre cloth to wipe down the exterior casing. Never use chemicals, and certainly never spray water directly into the charging port. If the pins look dirty, use a dry cotton bud or a can of compressed air to gently remove dust: never stick metal objects into the port.
5. Skipping the Annual Professional Safety Check
Just as your car needs an MOT, your high-voltage charging system needs a professional eye.
The Mistake: Thinking that a one-time ev charger installation surrey means the system is set for life. Over time, thermal expansion and contraction (especially during Surrey’s cold winters and hot summers) can loosen the screw terminals inside your consumer unit or the charger itself.
The Fix: Schedule a professional inspection every 12 to 24 months. An electrician will perform a "loop impedance test" and check your RCD (Residual Current Device) to ensure it still trips in the event of a fault. At ADS Electrical, we integrate these checks into our maintenance packages to give Redhill homeowners total peace of mind.
6. Overlooking Load Balancing and Smart Settings
Most modern chargers in 2026 use "load balancing" to ensure they don't blow your home's main fuse when the oven, power shower, and car are all running at once.
The Mistake: Changing home appliances or upgrading your electrical system without recalibrating your charger's smart settings. If you’ve recently added an air source heat pump or a new electric induction hob, your charger’s "limit" might need to be adjusted.
The Fix: If you notice your house lights flickering when the car starts charging, or if your main fuse trips frequently, your load-balancing sensor (CT clamp) might be loose or misconfigured. This is a common issue that a quick visit from a local electrician in Redhill can resolve.
7. Attempting "DIY" Internal Repairs
With the rise of YouTube tutorials, many homeowners feel emboldened to "take a look" inside the unit when things go wrong.
The Mistake: Opening the casing of an EV charger. Not only does this immediately void your manufacturer's warranty, but it also exposes you to lethal voltages. Even if the power is turned off at the breaker, capacitors inside the unit can hold a dangerous charge for some time.
The Fix: If the unit is failing, stick to the "off and on" approach (rebooting the breaker). If that doesn't work, call the professionals. There are no user-serviceable parts inside an EV charger.
Enhancing Your Charging Area with Lighting
Maintenance isn't just about the wires; it's about the environment. Many charging "accidents": like tripping over cables or scratching the car: happen in the dark.
As specialists in LED lighting design, we recommend installing motion-activated LED floodlights or subtle garden path lighting around your charging station. Not only does this make plugging in at night safer, but it also acts as a deterrent against the theft of charging cables, which has unfortunately become more common across Surrey.
Why Choose ADS Electrical for Your EV Needs?
At ADS Electrical, we aren't just installers; we are full-service electrical partners. Based in Redhill, we serve all of Surrey with a commitment to fast, reliable, and professional service. Whether you need a new ev charger installation surrey, a consumer unit upgrade to 18th Edition standards, or an EICR landlord certificate, we’ve got you covered.
We provide:
- Free Quotes within 24 Hours: No waiting around for weeks.
- NICEIC Approved Contractors: Quality you can trust.
- 24-Hour Emergency Call-outs: Because electrical faults don't stick to a 9-to-5 schedule.
Don't wait for a "Charging Fault" message to appear on your dashboard. Keep your home charging station running smoothly and safely by avoiding these common mistakes.
Ready to upgrade or maintain your home charging setup?
Contact the experts at ADS Electrical today for a professional ev charger installation surrey and ensure your vehicle is always ready for the road ahead.