- EV charging
- EV charger
Insulation fault
Easee Insulation fault on an EV charger: insulation fault in cable, connector or car
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
Easee reports an insulation fault in the charging cable, connector or vehicle. Disconnect the cable and reconnect it; if the light turns red again, try another cable or consult your distributor.
Safety first
Stop and check this first
- Do not use a cable with wet or damaged connectors when Insulation fault appears. Replace it before charging again.
Safe checks you can perform
- Disconnect and reconnect the cable
- Moisture and damage on connectors and cable
- Test with another cable
- Insulation test on cable and circuit
Leave these tasks to a qualified professional
- Do not attempt this professional task: Insulation test on the charger circuit
- Do not attempt this professional task: RCD test on the circuit
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.
Insulation test on the charger circuit
What they doThe electrician measures insulation resistance of the fixed Easee circuit with an installation tester, with the unit isolated.
They must show youthe reading against the minimum in your wiring rules.
In writingmeasured value, test voltage and conclusion.
RCD test on the circuit
What they doTrip tests the RCD or RCBO protecting the charger.
They must show youthe measured trip time.
In writingdevice type and result against its specification.
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.
Disconnect and reconnect the cable
- Who:
- you, no tools.
- How:
- disconnect the charging cable and reconnect it, as Easee says.
- Result that matters:
- whether charging starts and the light does not turn red again.
- If charging starts without red:
- the alert did not persist; note it.
- If the light turns red again:
- confirms a repeating fault; move to the cable.
- Evidence to keep:
- app screenshot and photo of the red light.
Evidence: Error messages in the app
Moisture and damage on connectors and cable
- Who:
- you, looking only, nothing removed.
- How:
- check whether the connectors are wet, dirty or damaged and whether the cable has cuts or chafing.
- Result that matters:
- any visible point where insulation could fail.
- If there is moisture or visible damage:
- do not use that cable; it is the main suspect.
- If everything looks fine:
- damage may be internal; try another cable.
- Evidence to keep:
- photos of connectors and any damaged section.
Evidence: Error messages in the app
Test with another cable
- Who:
- you, no tools.
- How:
- try another compliant charging cable, as Easee suggests.
- Result that matters:
- whether the alert disappears with a different cable.
- If it disappears:
- confirms the original cable.
- If it stays:
- points to the car or the charger; consult the distributor.
- Evidence to keep:
- note of the cable tested and the result.
Evidence: Error messages in the app
Insulation test on cable and circuit
- Who:
- qualified electrician or service technician.
- How:
- measure insulation resistance of the charging cable with suitable equipment and of the fixed charger circuit.
- Result that matters:
- values against the minimums in your wiring rules.
- If the cable reads low:
- confirms it must be replaced.
- If cable and circuit are correct:
- the defect points to the vehicle.
- Evidence to keep:
- report with readings.
Insulation tests use a high test voltage. Electrician or service technician only.
Evidence: Error messages in the app
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
- Easee
- Product type
- EV charger
Known code variants
- cargador Easee fallo aislamiento
- Easee charger insulation fault
- Easee fallo de aislamiento
- Easee Insulation fault
- Easee insulation fault error
What it means
Easee defines Insulation fault as an insulation failure in the charging cable, the connector or the electric vehicle. The charger monitors for leakage through damaged insulation on that part of the circuit. Easee says to reconnect and, if the light turns red again, change cable or consult the distributor. The alert does not show which of the three parts is at fault.
Warnings and stop conditions
- Higheditorial warning
Do not use a cable with wet or damaged connectors when Insulation fault appears. Replace it before charging again.
Evidence: Error messages in the app
Symptoms and causes
Probable causes · in order
- Damaged cable insulationPossible
If charging starts with another compliant cable and the light does not turn red again, the original cable is the origin.
Evidence: Error messages in the app
- Connector with moisture or wearPossible
If the car or cable connector shows moisture, dirt or damage, it can explain the alert. Checking both connectors separates it.
Evidence: Error messages in the app
- Insulation defect in the vehiclePossible
If the alert stays with another cable and on another charger, the origin points to the car and its service centre checks it.
Evidence: Error messages in the app
Virtual technician
Does Insulation fault 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
Easee · 2026 · official_doc
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