- EV charging
- EV charger
112
Wallbox 112: the charger measured less than 150 V between L1 and neutral
Risk level
Critical
Stop using the equipment and contact a professional.
Urgency
Immediate
Quick answer
112 means the charger measured less than 150 V between L1 and neutral in the cited charger family. The deciding observation is whether 112 clears by itself after grid voltage stabilises or returns on the single controlled retry. Do not infer a failed part from the code alone.
Safety first
What to do now
- Capture the exact charger, vehicle and pattern
Photograph 112 and record the Wallbox model, part/serial number, vehicle model, cable used, charge stage and approximate time. Do not clear the event before those facts are saved.
- Run the one deciding check
Do not measure voltage yourself. Wait for the charger to clear the condition; if it does not, power it off, disconnect the vehicle, power on and try once as Wallbox documents. Record whether 112 clears by itself after grid voltage stabilises or returns on the single controlled retry. Change one condition only.
- Use recurrence as the stop point
Automatic clearing after supply stabilisation supports a transient undervoltage event; keep the time and recurrence pattern for the utility/installer. A returning 112 is not a reset problem. Leave charging stopped; the documented threshold requires an electrician and possibly the electricity provider.
What you must never do
- Do not attempt this professional task: Measured handoff for 112
What a technician must be able to justify
A technician is coming
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.
Measured handoff for 112
What they doMeasure L1-neutral at the approved test point under the exact installation procedure; if below 150 V, separate site wiring from upstream supply and contact the electricity provider as required.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- EV charging
- Brand
- Wallbox
- Product type
- EV charger
Known code variants
- cargador Wallbox 112
- caricatore Wallbox 112
- chargeur Wallbox 112
- code Wallbox 112
- codice Wallbox 112
- código Wallbox 112
- erreur Wallbox 112
- error Wallbox 112
- errore Wallbox 112
- Wallbox app code 112
- Wallbox charger 112
- Wallbox error 112
- Wallbox Fehler 112
- Wallbox Fehlercode 112
- Wallbox Ladegerät 112
What it means
Wallbox’s official documentation defines 112 as the charger measured less than 150 V between L1 and neutral. That is the protection or controller state, not a universal component diagnosis. Automatic clearing after supply stabilisation supports a transient undervoltage event; keep the time and recurrence pattern for the utility/installer. A returning 112 is not a reset problem. Leave charging stopped; the documented threshold requires an electrician and possibly the electricity provider.
Warnings and stop conditions
- Criticalsource verified
Smoke, burning smell, sparks, water, visible damage, abnormal heat or repeated protective-device trips means stay clear and leave charging disabled. Never open the charger, panel or connector and never probe voltage yourself.
Evidence: Understanding Wallbox app Error Codes and How to Resolve Them
Sources and technical references
- 1
Understanding Wallbox app Error Codes and How to Resolve Them
Wallbox · 2025 · official_doc
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