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Error code reference

Miele Dishwasher Error Code F..A

Drain fault; the wash cycle finishes too early indicating filters are clogged, the drain pump or non-return…

Miele codesMiele dishwasher codes

Drain fault; the wash cycle finishes too early indicating filters are clogged, the drain pump or non-return valve is blocked, or the drain hose is kinked.

First step from the service manual

Turn the machine off with the Z button, then clean the filters, drain pump, non-return valve, and check the drain hose for kinks.

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

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What F..A means on a Miele dishwasher

The F..A error code on a Miele dishwasher indicates a drain fault, specifically one where the wash cycle ends prematurely rather than completing its full programmed sequence. This points to a blockage or restriction in the drainage system that prevents water from evacuating the tub at the expected rate or volume. The dishwasher's control system monitors drainage performance and triggers F..A when the drain cycle cannot be completed within the expected time window.

The drainage system on a Miele dishwasher consists of several components that must all function correctly: the coarse and fine mesh filters at the bottom of the tub, the drain pump, the non-return valve (which prevents backflow from the drain line), and the external drain hose. A clog at any one of these points can restrict or fully block water flow out of the machine. Food debris, grease buildup, and foreign objects such as broken glass or small utensil components are the most common sources of blockage in the filters and pump housing.

The non-return valve is a frequently overlooked component in drain fault diagnostics. It sits in the drain path and uses a flap or ball mechanism to prevent already-drained water from re-entering the tub. If this valve is jammed open or blocked with debris, it can interfere with drain pump performance and trigger the fault. Similarly, a kinked drain hose, which can occur after the machine is moved or reinstalled, creates a physical restriction that the pump cannot overcome, causing the cycle to abort early.

Source: manufacturer service documentation.

Common causes of F..A

  1. 01

    Clogged filters

    Wiring / connection

    The coarse and fine filters at the bottom of the tub are the most common cause of F..A. Food debris and grease accumulate over time and restrict water flow to the drain pump, preventing proper drainage.

  2. 02

    Blocked drain pump

    Wiring / connection

    Small objects such as broken glass, fruit pits, or food particles can pass through the filters and jam the drain pump impeller. A blocked impeller prevents the pump from moving water, causing the cycle to terminate early.

  3. 03

    Blocked or stuck non-return valve

    Wiring / connection

    The non-return valve prevents drained water from flowing back into the tub. Debris can jam this valve in a partially open or closed position, reducing drain efficiency and triggering the fault code.

  4. 04

    Kinked drain hose

    Wiring / connection

    If the dishwasher has been recently moved or the hose has shifted behind the unit, the drain hose may have developed a kink that restricts water flow. Inspect the full length of the hose behind and beneath the machine for bends or compression points.

  5. 05

    Failed drain pump

    Part replacement

    If all blockages have been cleared and the error persists, the drain pump motor itself may have failed electrically or mechanically and will need to be replaced.

See the test procedure for each cause

Frequently asked questions about F..A

What does F..A mean on a Miele dishwasher?
F..A is a drain fault code indicating that the wash cycle ended too early because the dishwasher could not drain water properly. The most common causes are clogged filters, a blocked drain pump, a stuck non-return valve, or a kinked drain hose. Clearing the blockage in the drainage system is usually all that is needed to resolve the error. Turn the machine off using the Z button before beginning any inspection or cleaning.
Can I fix F..A on my Miele dishwasher myself?
In most cases, yes. Start by turning the machine off with the Z button, then remove and clean the filters at the bottom of the tub, check the drain pump cavity for debris, inspect the non-return valve for obstructions, and trace the drain hose for any kinks. These steps require no special tools and resolve the majority of F..A faults. If the error returns after cleaning, the drain pump may need professional inspection or replacement.
Is it safe to use my Miele dishwasher while it is showing F..A?
No, you should not continue running the dishwasher while F..A is active. The code indicates that the cycle is terminating early due to a drain fault, which means dishes are not being properly washed or rinsed. Running additional cycles without resolving the underlying cause could also stress the pump motor. Address the drainage issue before resuming normal use.
Will resetting my Miele dishwasher clear the F..A error?
Turning the machine off may temporarily clear the displayed code, but F..A will return if the underlying drain blockage is not resolved. The dishwasher's control system will detect the same drain fault as soon as it attempts another cycle. A lasting fix requires physically cleaning the filters, drain pump, and non-return valve, and checking the drain hose for kinks.
How much does it cost to repair a Miele dishwasher F..A error?
If the fault is caused by a simple blockage in the filters, pump, or hose, the repair cost is effectively nothing beyond your time, as no parts are needed. If the drain pump has failed and requires replacement, parts and labor costs typically range from $150 to $350 depending on your location and service provider. Addressing blockages promptly reduces the risk of pump damage and keeps repair costs low.

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