- Appliances
- Dryers
FIL tEr
Samsung FIL tEr on a tumble dryer: heat exchanger needs a clean
Risk level
Low
Usually safe to check without specialist tools.
Urgency
Low
Quick answer
On Samsung heat pump dryers, FIL tEr with the buzzer sounding means the heat exchanger needs cleaning. Unplug the dryer, take out the inner cover, brush the fins gently without bending them, then refit and lock the covers.
Safety first
Stop and check this first
- Unplug the dryer before opening the heat exchanger cover, and never touch or clean the exchanger with bare hands; Samsung warns of injury and burns.
- Bending or damaging the fins while cleaning can lower drying performance, according to Samsung.
Safe checks you can perform
- Open the heat exchanger access
- Brush the fins clean
- Wipe and refit the inner cover
- Dismiss the alert after cleaning
Leave these tasks to a qualified professional
- Do not attempt this professional task: Heat exchanger and cover inspection
- Do not attempt this professional task: Drying test after the visit
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.
Heat exchanger and cover inspection
What they doIf FIL tEr comes back with a freshly cleaned exchanger and a locked cover, the technician checks the condition of the fins and why the dryer keeps the alert.
They must show youthe clean exchanger with no flattened fins and the inner cover recognised when closed.
In writingthe code read, the exchanger condition, any part replaced and the test carried out.
Drying test after the visit
What they doThe technician completes a drying programme and confirms the load comes out dry and the heat exchanger alert does not return.
They must show youa finished cycle without FIL tEr and a dry load.
In writingthe test programme, the result and the date.
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.
Open the heat exchanger access
- Who:
- you, with the dryer unplugged and cool.
- How:
- press the top of the outer cover at the bottom of the dryer (left or right depending on the model) to open it. Unlock the levers and pull the inner cover out. Water droplets around the exchanger are normal condensation, not a leak.
- Result that matters:
- the inner cover removed and the exchanger visible.
- If you cannot find the cover or levers:
- look up the cleaning section in your model's manual.
- If the cover comes out easily:
- move on to cleaning the fins.
- Evidence to keep:
- photo of the exchanger before cleaning.
Evidence: Cleaning the Heat Exchanger on a Samsung Dryer
Brush the fins clean
- Who:
- you, without touching the exchanger by hand.
- How:
- use the cleaning brush supplied with the dryer and work gently along the fins without bending them. If the lint is very dry and hard to shift, spray a little water on the exchanger and brush again.
- Result that matters:
- clean, straight fins.
- If there was a layer of lint:
- drying should improve once it is removed.
- If you see bent or damaged fins:
- leave them alone and mention it to Samsung service.
- Evidence to keep:
- photo of the cleaned exchanger.
Evidence: Cleaning the Heat Exchanger on a Samsung Dryer
Wipe and refit the inner cover
- Who:
- you.
- How:
- wipe the inner cover with a smooth damp cloth, paying attention to the inner corners where moisture and dirt gather. Put it back in its original position, lock it with the levers and close the outer cover, checking the levers are locked.
- Result that matters:
- inner cover locked and outer cover shut.
- If everything is secure:
- plug in the dryer and clear the alert.
- If the cover will not lock:
- check it is in the right position before going on.
- Evidence to keep:
- photo of the locked levers.
Evidence: Cleaning the Heat Exchanger on a Samsung Dryer
Dismiss the alert after cleaning
- Who:
- you.
- How:
- with the dryer plugged in, tap the button your model uses to dismiss the notification. If the alarm continues after dismissing it, unplug and plug the dryer back in, or remove and reinsert the heat exchanger inner cover.
- Result that matters:
- the display clear of FIL tEr and no repeated buzzer.
- If the alert clears:
- note the date so you know when the next clean is due.
- If it stays after cleaning and refitting the cover:
- contact a Samsung service centre.
- Evidence to keep:
- photo of the display with the alert gone.
Evidence: Samsung Tumble Dryer error codes - what do they mean? · Cleaning the Heat Exchanger on a Samsung Dryer
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
- Samsung
- Product type
- Dryers
Known code variants
- alarma intercambiador de calor Samsung
- aviso FIL tEr secadora Samsung
- FIL + tEr
- FIL TER
- FILtEr
- Samsung dryer clean heat exchanger
- Samsung dryer FIL tEr
- Samsung heat exchanger alarm
- Samsung heat pump dryer FIL tEr
- Samsung secadora FIL tEr
- Samsung secadora limpiar intercambiador
- Samsung tumble dryer FIL tEr
- secadora Samsung bomba de calor FIL tEr
What it means
Samsung UK's tumble dryer code page (updated July 2025) links FIL + tEr and the buzzer to a heat exchanger that needs to be cleaned. Samsung Australia's guide for Heat Pump dryers (2026) recommends cleaning at least once a month, explains how to reach the exchanger through the covers at the bottom of the dryer, and notes that the alert remains until you dismiss it. Steps may differ on your model, and the alert by itself does not point to a failed part.
Warnings and stop conditions
- Mediumsource verified
Unplug the dryer before opening the heat exchanger cover, and never touch or clean the exchanger with bare hands; Samsung warns of injury and burns.
Evidence: Cleaning the Heat Exchanger on a Samsung Dryer
- Lowsource verified
Bending or damaging the fins while cleaning can lower drying performance, according to Samsung.
Evidence: Cleaning the Heat Exchanger on a Samsung Dryer
Symptoms and causes
Probable causes · in order
- Lint built up on the heat exchangerCommon
Over time lint settles on the heat exchanger fins; Samsung links FIL tEr directly to the exchanger needing a clean.
Evidence: Samsung Tumble Dryer error codes - what do they mean?
- Routine cleaning overdueCommon
Samsung Australia recommends cleaning the exchanger at least once a month, as a dirty one holds back drying performance.
Evidence: Cleaning the Heat Exchanger on a Samsung Dryer
- Alert not dismissed or inner cover not seatedPossible
After cleaning, the message stays until dismissed; if it continues, Samsung suggests a power reset or removing and refitting the inner cover.
Evidence: Cleaning the Heat Exchanger on a Samsung Dryer
Virtual technician
Does FIL tEr 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
Samsung Tumble Dryer error codes - what do they mean?
Samsung · 2025 · official_doc
- 2
Códigos de error de la secadora Samsung: ¿qué significan?
Samsung · 2026 · official_doc
- 3
Cómo realizar tareas de mantenimiento de tu secadora para evitar averías
Samsung · 2022 · official_doc
- 4
Cleaning the Heat Exchanger on a Samsung Dryer
Samsung · 2026 · official_doc
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