- EV charging
- EV charger
Yellow light
Zaptec Go yellow light on an EV charger: awaiting authorisation
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
On the Zaptec Go, a yellow light means the charger is waiting for authorisation before charging can start. Start charging with the Zaptec app, your RFID/NFC card or key or your operator's app; if it stays yellow, ask for your access to be checked.
Safety first
Stop and check this first
- Do not open the charger or touch any wiring over a yellow light: it is a pending authorisation that is solved from the app, the card or the admin.
Safe checks you can perform
- Start charging with your installation's method
- Confirm your access and card with the admin
- Tell yellow apart from other colours
Leave these tasks to a qualified professional
- Do not attempt this professional task: Access review on the installation by the admin
- Do not attempt this professional task: Authorisation setup review with support
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Access review on the installation by the admin
What they doThe operator or admin checks in their system that your user has access to the installation and that your RFID/NFC card is linked.
They must show youyour user and card registered on the installation and a charge that starts after authorising.
In writingwhat was fixed (access, card link or authorisation method) and the date.
Authorisation setup review with support
What they doIf your access is correct and the charger keeps waiting, the installer or Zaptec support reviews how authorisation is configured on the installation.
They must show youthe installation's authorisation setting and a session that goes from yellow to blue.
In writingthe case number, the setting reviewed or changed and the result of the test charge.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Start charging with your installation's method
- Who:
- you, with the car plugged in.
- How:
- start charging with the method your installation uses: the Zaptec app, your RFID/NFC card or key held to the charger, or your charge point operator's (CPO) app or portal. Zaptec says the method depends on how the installation is set up.
- Result that matters:
- the light changing from yellow to blue (charging or ready to charge).
- If the light turns blue:
- charging was waiting for authorisation and can now start.
- If the light stays yellow:
- try another available method and move on to checking your access.
- Evidence to keep:
- which method you used, the time and a photo of the light before and after.
Evidence: Zaptec Go status light - what the colours mean
Confirm your access and card with the admin
- Who:
- you, with the operator or admin of the installation (building, employer or CPO).
- How:
- ask the operator or admin whether your user has access to this installation and whether your RFID/NFC card or key is linked to your user, which is what Zaptec says to check when the light does not change.
- Result that matters:
- knowing whether the block is in your account or card rather than in the charger.
- If access or the card link was missing:
- once it is fixed, start charging again.
- If access and card are fine and the light stays yellow:
- ask the admin to review it with Zaptec support.
- Evidence to keep:
- the admin or operator name, the date you asked and their answer.
Evidence: Zaptec Go status light - what the colours mean
Tell yellow apart from other colours
- Who:
- you, looking at the status light.
- How:
- compare the colour with Zaptec's table: white is charging finished, blue charging or ready, green paused or delayed start, yellow waiting for authorisation, orange setup not complete and red error detected. Also note whether the light is solid or pulsing, because after a restart it can pulse yellow while it reconnects.
- Result that matters:
- confirming the colour is yellow and not orange or green, which have other steps.
- If it is solid yellow with the car plugged in:
- carry on with authorisation on this page.
- If it is orange, green or red:
- follow the step Zaptec gives for that colour.
- Evidence to keep:
- a photo or short video of the light with the car plugged in.
Evidence: Zaptec Go status light - what the colours mean · How to restart a Zaptec charging station
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- EV charging
- Brand
- Zaptec
- Product type
- EV charger
Known code variants
- Zaptec esperando aprobación
- Zaptec esperando autenticación
- Zaptec Go amarillo
- Zaptec Go luz amarilla
- Zaptec Go yellow
- Zaptec Go yellow light
- Zaptec luz amarilla
- Zaptec waiting for approval
- Zaptec waiting for authorisation
- Zaptec waiting for authorization
- Zaptec yellow light
What it means
The Zaptec Help Centre gives the Zaptec Go yellow light the state waiting for authentication or approval: the installation requires each charge to be authorised, through the Zaptec app, an RFID/NFC card or key, or a connected third party system such as the charge point operator. If the light stays yellow after you try, Zaptec refers you to the operator or admin to confirm your user has access to the installation and that your card is linked. It is a waiting state, not an error, and on its own it never proves that a part is faulty.
Warnings and stop conditions
- Loweditorial warning
Do not open the charger or touch any wiring over a yellow light: it is a pending authorisation that is solved from the app, the card or the admin.
Evidence: Zaptec Go status light - what the colours mean · How to restart a Zaptec charging station
Symptoms and causes
Probable causes · in order
- Charging has not been authorised yetCommon
This is the case Zaptec describes: the installation requires authentication and the charger waits for you to start charging with the app, the RFID/NFC card or the operator's system.
Evidence: Zaptec Go status light - what the colours mean
- Your user has no access to this installationPossible
If the light stays yellow after you try, Zaptec says to check with the operator or admin that your account has access to that specific installation.
Evidence: Zaptec Go status light - what the colours mean
- RFID/NFC card or key not linked to your userPossible
Zaptec notes that the card or key must be correctly linked to your user; if it is not, the charger never receives the approval.
Evidence: Zaptec Go status light - what the colours mean
Virtual technician
Does Yellow light still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Zaptec Go status light - what the colours mean
Zaptec · 2026 · official_doc
- 2
How to restart a Zaptec charging station
Zaptec · 2026 · official_doc
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