- Appliances
- Washing machines
F05
Indesit F05 on a washing machine: drain blockage or pump issue

Risk level
Medium
Proceed carefully and stop if the check is unclear.
Urgency
Medium
Quick answer
On a Indesit washing machine, F05 means a waste pipe blockage or pump issue: the door will not open or water stays in the drum. Check the pump filter if your model has one, the hose and the under sink plumbing.
Safety first
Stop and check this first
- With water in the drum, unplug the washer before opening the filter and put a container underneath: water will reach the floor next to an electrical appliance.
- Do not force the door if F05 keeps it locked: the water in the drum would rush out.
Safe checks you can perform
- Pump filter
- Drain hose
- Under sink plumbing
Leave these tasks to a qualified professional
- Do not attempt this professional task: Drain pump diagnosis
- Do not attempt this professional task: Full drain test
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.
Drain pump diagnosis
What they doWith the washer unpowered, the technician checks whether the pump turns freely, measures its winding with a multimeter and checks its connection to the control.
They must show youthe measured pump value against the Indesit specification or the object that blocked it.
In writingthe check, result, the reference of the replaced pump and why.
Full drain test
What they doThe technician runs a programme with spin and checks the drum ends empty, the door opens and F05 does not return.
They must show youthe drum empty and the door released at the end.
In writingprogramme, result and 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.
Pump filter
- Who:
- you, with the washer unplugged.
- How:
- check your model manual to see if it has a pump filter and how to drain the water before opening it; then clean it, as Indesit asks.
- Result that matters:
- a filter with no debris, closed securely.
- If it had debris and it then drains without F05:
- that was the cause.
- If it was clean or your model has no accessible filter:
- check the hose.
- Evidence to keep:
- a photo of the filter and what was removed.
Evidence: Washing Machine Error Codes | Indesit Service
Drain hose
- Who:
- you, with the washer unplugged.
- How:
- check the drain hose along its whole route for plugs or folds.
- Result that matters:
- a clear hose.
- If it was blocked and it drains once cleared:
- that confirms the cause.
- If it is clear:
- check the under sink plumbing.
- Evidence to keep:
- a photo of the hose.
Evidence: Washing Machine Error Codes | Indesit Service
Under sink plumbing
- Who:
- you, or a plumber if you cannot see the blockage.
- How:
- if the hose discharges into the sink trap or drain, check that this drain takes water normally.
- Result that matters:
- the household drain is not blocked.
- If the sink also drains poorly:
- the blockage is in the plumbing, not the washer.
- If everything is clear and F05 stays:
- Indesit says it is likely the pump; book a technician.
- Evidence to keep:
- a photo of the drain connection.
Evidence: Washing Machine Error Codes | Indesit Service
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
- Indesit
- Product type
- Washing machines
Known code variants
- Anomalía F05 Ferroli
- calentador Cointra F05
- Cointra F05
- Cointra water heater F05
- CPE T F05
- Error F05 Ferroli
- error F05 lavadora Hotpoint
- error F05 lavadora Indesit
- error F05 lavadora Whirlpool
- F-05
- F5
- Ferroli error F05
- Ferroli F05
- Ferroli F05 boiler
- Ferroli F05 caldera
- Hotpoint F05 error washer
- Hotpoint F05 lavadora
- Hotpoint washer F05 not draining
- Hotpoint washing machine F05
- Indesit F05 error washer
- Indesit F05 lavadora
- Indesit washer F05 not draining
- Indesit washing machine F05
- lavadora Hotpoint F05 no desagua
- lavadora Indesit F05 no desagua
- lavadora Whirlpool F05 no desagua
- Opalia F.05
- Opalia F05
- Saunier Duval F05
- Supreme E TS F05
- Whirlpool F05 lavadora
- Whirlpool F05 washing machine
- Whirlpool washer F05 not draining
- Whirlpool washing machine error F05
What it means
Indesit defines F05 as a waste pipe blockage or pump issue. The symptom it describes is a door that will not open, or one that opens with water left in the drum. The control detects that water is not leaving as it should. It can be a clogged pump filter, a blocked drain hose or the plumbing under the sink. Only if all of that is clear does Indesit point to a pump failure; the code alone does not prove it.
Warnings and stop conditions
- Mediumeditorial warning
With water in the drum, unplug the washer before opening the filter and put a container underneath: water will reach the floor next to an electrical appliance.
Evidence: Washing Machine Error Codes | Indesit Service
- Loweditorial warning
Do not force the door if F05 keeps it locked: the water in the drum would rush out.
Evidence: Washing Machine Error Codes | Indesit Service
Symptoms and causes
Probable causes · in order
- Clogged pump filterCommon
Indesit asks you to check it first if your model has one; you can tell on opening it and finding lint or objects, and it drains once cleaned.
Evidence: Washing Machine Error Codes | Indesit Service
- Blocked drain hosePossible
With a clean filter, a plugged hose keeps the water in; it shows when you inspect the hose and test its flow.
Evidence: Washing Machine Error Codes | Indesit Service
- Blockage in the under sink plumbingPossible
Indesit includes the sink trap or drain: if the hose is clear but the household drain does not flow, the problem is there.
Evidence: Washing Machine Error Codes | Indesit Service
- Pump failurePossible
Indesit treats it as likely only when filter, hose and plumbing are clear and the warning persists.
Evidence: Washing Machine Error Codes | Indesit Service
Virtual technician
Does F05 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
Washing Machine Error Codes | Indesit Service
Indesit Service (Whirlpool UK) · official_doc
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