- HVAC
- Pellet stoves
A21
Edilkamin A21 pellet stove: switch-off due to power failure
Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
Your Edilkamin Cherie pellet stove shut itself down and the display alternates Black-Out and OFF with code A21. The manual ties it to a lack of mains power and says it is not normally a product defect. Check the electrical connection and call the technician if it recurs.
Safety first
Stop and check this first
- Edilkamin requires the stove to be disconnected from the mains before any maintenance operation, so do not open covers or touch wires while the product is plugged in.
- According to the manual, the names of authorised Edilkamin service centres are published only on www.edilkamin.com, so be wary of third-party lists.
Safe checks you can perform
- Read the Black-out shutdown sequence on the display
- Think back to any power cut or flicker at home
- Look at whether the stove cable is still plugged in properly
Leave these tasks to a qualified professional
- Do not attempt this professional task: Check of the electrical connection and voltage dips
- Do not attempt this professional task: Repairs only by an authorised Edilkamin service centre
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.
Check of the electrical connection and voltage dips
What they doAn authorised Edilkamin technician examines the stove electrical connection and any voltage dips in the installation, the two checks the manual pairs with code A21 before sending you to the technician.
They must show youwhat they checked on the stove electrical connection and what the review of the supply voltage showed.
In writingthe A21 code recorded, the cause found (mains or product) and what was done during the visit.
Repairs only by an authorised Edilkamin service centre
What they doIf the alarm persists after the supply is checked, any repair on the stove is carried out by a licensed Edilkamin retailer or technical service centre using original components and no modifications.
They must show youproof that they are an authorised Edilkamin service centre and the origin of any part they replace.
In writingany replaced parts with their reference, where applicable, and confirmation that the stove runs again.
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.
Read the Black-out shutdown sequence on the display
- Who:
- you, looking at the stove display or the Edilkamin remote control.
- How:
- see whether the display alternates Black-Out and OFF while shutting down and, once the stove has stopped, stays on Black-Out together with the A21 code listed in the manual table.
- Result that matters:
- confirm this is the power failure shutdown and not another alarm from the table.
- If Black-Out appears with code A21:
- the alert is a power failure switch-off and you can go on to check the mains supply.
- If the display shows a different A code:
- look that code up in the manual table and leave this entry.
- Evidence to keep:
- photo of the display showing the Black-Out text and the visible code.
Evidence: Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
Think back to any power cut or flicker at home
- Who:
- you, in your own home, without touching anything inside the stove.
- How:
- remember whether the lights went out, bulbs flickered or other appliances restarted around the time the stove stopped, because the manual asks for voltage dips to be checked.
- Result that matters:
- link the stove shutdown to a real electrical event in the house.
- If there was an outage or flicker at that time:
- the stop matches what the manual describes and does not point to a defect.
- If no electrical event was noticed:
- note the time of the shutdown for the technician.
- Evidence to keep:
- approximate shutdown time and whether any outage or flicker was noticed at home.
Evidence: Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
Look at whether the stove cable is still plugged in properly
- Who:
- you, with the stove off and without opening any cover or touching internal wiring.
- How:
- check by eye that the power cable is still connected at the wall socket and at the stove, and that the socket or strip it hangs from is live, as the manual asks when it mentions the electrical connection.
- Result that matters:
- rule out a loose connection or a dead socket as the cause of the stop.
- If the cable was loose or the socket dead and you have put it right:
- contact the technician only if A21 comes back.
- If cable and socket are fine and A21 keeps appearing:
- leave everything else alone and contact an Edilkamin service technician.
- Evidence to keep:
- photo of the plug and socket with the cable connected.
Evidence: Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
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
- HVAC
- Brand
- Edilkamin
- Product type
- Pellet stoves
Known code variants
- A21
- Apagado por falta de energía eléctrica
- Black-out
- Black-Out OFF
- Corte de luz
- Edilkamin Cherie A21
- Switch-off due to power failure
What it means
In the Edilkamin use and maintenance manual for the CHERIE 9+ EVO and CHERIE 11++ EVO pellet stoves (chapter 17, advice for possible problems), code A21 stands for Black-out: switch-off due to power failure, not normally a product defect. While it switches off the display alternates Black-Out and OFF. Other models may differ, and the A21 code alone does not prove that any part is faulty.
Warnings and stop conditions
- Mediumsource verified
Edilkamin requires the stove to be disconnected from the mains before any maintenance operation, so do not open covers or touch wires while the product is plugged in.
Evidence: Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
- Lowsource verified
According to the manual, the names of authorised Edilkamin service centres are published only on www.edilkamin.com, so be wary of third-party lists.
Evidence: Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
Symptoms and causes
Probable causes · in order
- Mains cut or voltage dip in the homeCommon
The manual defines A21 as a switch-off caused by power failure and asks you to check voltage dips, so an outage or a drop in mains voltage is the most usual explanation for this alarm.
Evidence: Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
- Loose or interrupted electrical connection to the stovePossible
The manual table says to check the electrical connection; a plug that is not fully seated or a switched-off power strip leaves the stove without current and causes the same shutdown.
Evidence: Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
- Repeated alert with no mains incident to explain itLess common
If A21 returns although nothing electrical happened at home, the manual sends you to the technician for a product check, so it should not be blamed on the mains alone.
Evidence: Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
Virtual technician
Does A21 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
Estufas de pellets CHERIE 9+ EVO - CHERIE 11++ EVO Manual de uso y mantenimiento (cod. 942786)
Edilkamin · 2026 · official_doc
- 2
Pellet stoves CHERIE 9+ EVO - CHERIE 11++ EVO Use and maintenance manual (code 942786)
Edilkamin · 2026 · official_doc
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