A safety switch that drops out when your Zappi starts charging is telling you something: it has measured current leaking to earth, or a fault on the circuit, and has cut power in a fraction of a second. That's exactly what it's there for.
Finding which part is leaking (the wiring, the charger or the car) takes testing. Ring 0421 772 661 and we'll track it down.
A tripping safety switch is a warning, not an inconvenience. Don't tape, hold or bypass it, and don't keep flicking it back on. If there's a smell of burning, scorching on the charger or switchboard, or water around the unit, switch off at the main switch if safe and keep clear. Call 000 for fire or injury.
Leave the Zappi's cover and the switchboard cover on. The checks below are all done from the outside.
Does it trip the moment you plug in, when charging begins, partway through, or only in wet weather? That timing is the most useful thing you can tell an electrician.
Switch the safety switch back on one time. If it trips again during the next charge, leave the charger circuit off until it's tested.
If the same safety switch protects other circuits, unplug other appliances on them. Sometimes the Zappi just tips an already-leaky circuit over the limit.
Outdoor chargers, carports and driveways get weather. Look for water pooling at the cable entry, a cracked conduit or a lead lying in a puddle.
If a second EV charges without tripping, the first car may be the source. Don't swap leads or adaptors that aren't designed for it.
Moisture in the installation. Water getting into a junction, conduit, isolator or the cable entry is a common cause of earth leakage, and it often shows up after rain. This is electrical work: finding the entry point and sealing or replacing the affected part.
Wrong type of protection. EV chargers need RCD protection suited to the kind of leakage current they can produce. The Zappi has its own DC leakage detection, but the protection at the switchboard still has to be the right type and rating for the circuit. An unsuitable or ageing RCD can trip when it shouldn't, or not trip when it should. We check what's fitted against the manufacturer's instructions.
Shared protection. When the charger shares a safety switch with other circuits, small leakages add up. A dedicated RCBO for the charger is often the cleaner fix, and it stops a charger fault from blacking out half the house.
Charger or car faults. If the wiring and protection test fine, the leakage may be inside the Zappi or in the car's charging system. Charger faults go through myenergi's support and warranty; car faults go to the dealer. We can give you the test results to take to them.
If the safety switch trips more than once, or trips during wet weather, have it tested before you charge again. The same applies if tripping started after other work at the switchboard, or after storm damage.
We insulation-test the circuit, check the RCD's type and trip performance, inspect the outdoor parts for water and confirm the supply is sound. Our Zappi installation page covers how the circuit should be set up.
Charging is a heavy, continuous load, so any leakage in the charger, the car or the wiring shows up then. Testing each part separately finds which one it is.
It needs suitable RCD protection, and a dedicated RCBO is usually the neatest way to provide it. The type required depends on the charger and its instructions.
Almost always moisture getting into something outdoors: a junction, conduit, isolator or the charger's cable entry. Leave it off and get it checked.
No. RCD ratings are set for safety, and changing them must be done by a licensed electrician to suit the installation, not to stop nuisance tripping.
If the fault is inside the Zappi, myenergi's warranty process applies. Installation faults, like water ingress or loose wiring, are electrical repairs.
NSW Electrical Contractor Licence 332956C · Fully insured · Since 2016 · Based in Hurlstone Park
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