- Appliances
- Air purifiers
E12
LG PuriCare E12 on an air purifier: Clean Booster not spinning

Risk level
Low
Usually safe to check without specialist tools.
Urgency
Medium
Quick answer
On an LG PuriCare air purifier, E12 means the Clean Booster fan is not rotating. On PuriCare 360 units that allow it, switch off, unplug and refit the Clean Booster cover with FRONT facing forward.
Safety first
Stop and check this first
- Unplug the purifier and wait for the Clean Booster to stop before removing the cover, as LG says; if your model is not in the removable group, do not force the cover.
Safe checks you can perform
- Model type and whether you can remove the Clean Booster
- Remove and refit the Clean Booster cover
- Fan free of objects
Leave these tasks to a qualified professional
- Do not attempt this professional task: Clean Booster movement test
- Do not attempt this professional task: Check of the Clean Booster and its fitting detector
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.
Clean Booster movement test
What they doAfter the repair, the technician switches the purifier on and confirms the Clean Booster rises, lowers and spins without E12.
They must show youthe Clean Booster moving and spinning without a code.
In writingthe test carried out and the result.
Check of the Clean Booster and its fitting detector
What they doThe technician checks the safety device detects the cover, the fan turns freely and its drive responds, following LG's procedure.
They must show youthe test of the cover detector and of the fan rotation.
In writingthe failing part, its reference and why it is replaced.
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.
Model type and whether you can remove the Clean Booster
- Who:
- you.
- How:
- check the model on the label. LG only expects users to remove the cover on PuriCare 360 rental units from 2018 and units from January 2019 to August 2021.
- Result that matters:
- knowing whether this step is yours or the technician's.
- If your model is in that group:
- move on to the cover.
- If it is not:
- do not dismantle anything; LG says to contact service.
- Evidence to keep:
- photo of the model label.
Evidence: [LG Air Purifier][PuriCare 360] E12 appears on the display
Remove and refit the Clean Booster cover
- Who:
- you, on the listed models, no tools.
- How:
- switch the unit off and unplug it once the Clean Booster stops moving. Hold the bottom of the cover with both hands and push up from the back of the four grooves. When refitting, the word FRONT inside goes to the front and the hooks engage in order: front, rear, both sides. Push down until the grille height matches. On the 360 Alpha, turn the cover until the engraved closing line aligns.
- Result that matters:
- the cover level with the grille and no E12 at switch-on.
- If E12 clears:
- the cause was how the cover was fitted.
- If E12 stays:
- look for an object blocking the fan.
- Evidence to keep:
- photo of the fitted cover and of the display at switch-on.
Evidence: [LG Air Purifier][PuriCare 360] E12 appears on the display
Fan free of objects
- Who:
- you, with the unit unplugged.
- How:
- with the cover off, look for any object, large fluff or plastic stopping the fan from turning, without using tools.
- Result that matters:
- whether anything is blocking it.
- If there is an object:
- remove it by hand, refit the cover and test.
- If there is nothing and E12 stays:
- LG recommends a technician's check.
- Evidence to keep:
- photo of the fan with the cover off.
Evidence: [LG Air Purifier][PuriCare 360] E12 appears on the display
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
- Appliances
- Brand
- LG
- Product type
- Air purifiers
Known code variants
- Balay dishwasher E12
- Balay E12
- Bosch dishwasher E12
- Bosch E12
- Bosch E12 error
- Bosch E12 lavavajillas
- code erreur E12 lave-vaisselle Siemens
- codice E12 Bosch
- codice E12 Siemens
- código E12 Bosch
- código E12 Siemens
- E12
- E12 Bosch dishwasher
- E12 lavavajillas Balay
- E12 Siemens dishwasher
- E:12
- erreur E12 Siemens
- Error E12 Balay
- error E12 lavavajillas Bosch
- error E12 lavavajillas Siemens
- errore E12 lavastoviglie Bosch
- errore E12 lavastoviglie Siemens
- Fehlercode E12 Siemens
- LG air purifier E12 Clean Booster
- LG PuriCare 360 E12
- LG PuriCare E12
- purificador LG E12 Clean Booster
- Siemens dishwasher E12
- Siemens E12
- Siemens Geschirrspüler Fehler E12
What it means
LG defines E12 as the error caused by the Clean Booster fan failing to rotate. On PuriCare 360 rental units from 2018 and units made from January 2019 to August 2021, the Clean Booster cover can be removed and has a safety device that detects whether it is fitted correctly; if it is not pressed, the Clean Booster does not move up and down or E12 appears. On other models LG says to contact service. The code does not tell a badly fitted cover, an object blocking the fan or a fan fault apart.
Warnings and stop conditions
- Lowsource verified
Unplug the purifier and wait for the Clean Booster to stop before removing the cover, as LG says; if your model is not in the removable group, do not force the cover.
Evidence: [LG Air Purifier][PuriCare 360] E12 appears on the display
Symptoms and causes
Probable causes · in order
- Clean Booster cover fitted wronglyCommon
LG says E12 appears if the cover does not press the safety device properly; it is the first thing to check on PuriCare 360 units with a removable cover.
Evidence: [LG Air Purifier][PuriCare 360] E12 appears on the display
- Object blocking the fanPossible
LG asks you to check the fan is not bound by a foreign object; you can tell because the cover is fitted correctly and the error stays.
Evidence: [LG Air Purifier][PuriCare 360] E12 appears on the display
- Fan or drive faultPossible
If the cover is right and nothing blocks the fan, LG recommends a technician's check; the same applies to models whose Clean Booster the user cannot remove.
Evidence: [LG Air Purifier][PuriCare 360] E12 appears on the display
Virtual technician
Does E12 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
[LG Air Purifier][PuriCare 360] E12 appears on the display
LG Electronics · 2024 · official_doc
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