- Garden
- Cordless garden tools
Status LED blinking red
Greenworks Status LED blinking red on charger: fault
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
On Greenworks battery chargers (24V, 40V, 60V, and 80V platforms), a Status LED blinking red when you engage the battery signals a false defect reading or charger/battery issue that requires the official two-step 1-minute reset procedure.
Safety first
Stop and check this first
- Never open the battery pack or charger; if the battery pack or charger is damaged or the status LED is still blinking red after both 1-minute reset steps, unplug the charger and arrange warranty service or replacement.
Safe checks you can perform
- Remove the battery from the charger for 1 minute and reinsert it
- Remove the battery and unplug the charger from the outlet for 1 minute
- Inspect for external damage and always unplug the charger after a full charge
Leave these tasks to a qualified professional
- Do not attempt this professional task: Evaluation of the battery pack and charger by the Greenworks warranty team or approved service center
- Do not attempt this professional task: Replacement of the damaged or faulty battery pack or charger with an approved unit
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.
Evaluation of the battery pack and charger by the Greenworks warranty team or approved service center
What they doThe Greenworks warranty team or an approved service center evaluates the battery pack (such as G40B2, G40B4, G40B6 / BAF series) and charger (such as G40C / CAF series) when the status LED is still blinking red after both 1-minute reset steps.
They must show youthe test of your battery pack and your charger confirming which unit causes the status LED to keep blinking red.
In writingthe service or warranty assessment stating which unit is affected and its coverage under the Greenworks warranty (3 years on the product and 2 years on consumer batteries).
Replacement of the damaged or faulty battery pack or charger with an approved unit
What they doIf the battery pack or charger is damaged or continues blinking red after the two-step reset, the battery pack or charger is replaced with an approved Greenworks unit without opening either housing.
They must show youthe replacement unit properly charging with the status LED blinking green.
In writingthe warranty or replacement record listing the exact model number of the replaced battery pack or charger.
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.
Remove the battery from the charger for 1 minute and reinsert it
- Who:
- you, at the charger in a dry indoor location.
- How:
- when the battery is inserted into the charger and the status LED blinks red, remove the battery from the charger for 1 minute, then reinsert it.
- Result that matters:
- the status LED blinks green, confirming that the battery is properly charging.
- If the status LED blinks green:
- the battery is now properly charging.
- If the status LED is still blinking red:
- proceed to the second step by removing the battery and unplugging the charger for 1 minute.
- Evidence to keep:
- note of whether the status LED switched to blinking green after removing the battery for 1 minute.
Evidence: Greenworks Battery Chargers Collection and Official Charger Troubleshooting FAQs
Remove the battery and unplug the charger from the outlet for 1 minute
- Who:
- you, unplugging the charger from the wall outlet.
- How:
- if the status LED is still blinking red, remove the battery and unplug the charger for 1 minute; after 1 minute, plug in the charger and reinsert the battery.
- Result that matters:
- the charger resets itself and the status LED blinks green to show the battery is properly charging.
- If the status LED blinks green:
- the 1-minute unplug reset cleared the false defect reading.
- If the status LED is still blinking red:
- inspect for external damage and contact the warranty team or arrange replacement.
- Evidence to keep:
- short video of the status LED after plugging in the charger after 1 minute and reinserting the battery.
Evidence: Greenworks Battery Chargers Collection and Official Charger Troubleshooting FAQs · Greenworks Batteries and Chargers Official Care and Troubleshooting Guide
Inspect for external damage and always unplug the charger after a full charge
- Who:
- you, visually inspecting the disconnected battery pack and charger.
- How:
- check whether the battery pack or charger is physically damaged, and make sure to remove the battery once it reaches a full charge and unplug the charger from the outlet so the charger resets itself each time it is used.
- Result that matters:
- you prevent future false defect readings and identify any visible housing damage.
- If neither unit is damaged and unplugging after full charge prevents recurrence:
- keep following this routine.
- If the status LED stays blinking red or the battery pack or charger is damaged:
- arrange warranty service or replacement.
- Evidence to keep:
- photo of the model labels on the battery pack (such as G40B2, G40B4, G40B6 / BAF series) and charger (G40C / CAF series).
Evidence: Greenworks Battery Chargers Collection and Official Charger Troubleshooting FAQs · Greenworks Batteries and Chargers Official Care and Troubleshooting Guide · Manual del operario y Operator Manual Greenworks 40V GD40LM46SP / GD40LM46SPK6 (LMF412)
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
- Garden
- Brand
- Greenworks
- Product type
- Cordless garden tools
Known code variants
- Cargador parpadea en rojo
- Charger flashing red
- Charger red light blinking
- LED de estado parpadeando en rojo
- Luz roja intermitente en cargador
- Status LED blinking red
- Status LED blinks red
What it means
Greenworks official charger troubleshooting guidance (Greenworks Battery Chargers FAQ and Batteries & Chargers Care Guide, alongside the EU 40V GD40LM46SP Operator Manual covering G40B2, G40B4, G40B6 / BAF series batteries and G40C / CAF series chargers) explains that when the battery is inserted into the charger and the status LED blinks red, you should follow the two-step 1-minute reset before concluding there is an issue with the battery or charger. Other 24V, 40V, 60V, or 80V models may differ, and a blinking red status LED alone never proves a part is faulty.
Warnings and stop conditions
- Higheditorial warning
Never open the battery pack or charger; if the battery pack or charger is damaged or the status LED is still blinking red after both 1-minute reset steps, unplug the charger and arrange warranty service or replacement.
Evidence: Greenworks Battery Chargers Collection and Official Charger Troubleshooting FAQs · Manual del operario y Operator Manual Greenworks 40V GD40LM46SP / GD40LM46SPK6 (LMF412)
Symptoms and causes
Probable causes · in order
- False defect reading from leaving the battery in the charger or keeping the charger plugged inCommon
Greenworks official battery and charger guidance states that failing to remove the battery once it reaches a full charge or leaving the charger plugged into the outlet can cause false defect readings until the charger resets itself.
Evidence: Greenworks Battery Chargers Collection and Official Charger Troubleshooting FAQs · Greenworks Batteries and Chargers Official Care and Troubleshooting Guide
- Issue with the battery or charger confirmed after both 1-minute reset stepsPossible
If the status LED is still blinking red after removing the battery for 1 minute and after removing the battery and unplugging the charger for 1 minute, Greenworks states that this likely indicates an issue with the battery or charger.
Evidence: Greenworks Battery Chargers Collection and Official Charger Troubleshooting FAQs · Manual del operario y Operator Manual Greenworks 40V GD40LM46SP / GD40LM46SPK6 (LMF412)
Virtual technician
Does Status LED blinking red 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
Greenworks Battery Chargers Collection and Official Charger Troubleshooting FAQs
Greenworks Tools · 2026 · official_doc
- 2
Greenworks Batteries and Chargers Official Care and Troubleshooting Guide
Greenworks Tools · 2026 · official_doc
- 3
Manual del operario y Operator Manual Greenworks 40V GD40LM46SP / GD40LM46SPK6 (LMF412)
Greenworks Tools · 2021 · official_doc
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