Miele CM and CVA coffee machines : F73 or Check the brew unit

Models covered: CM 7550, CM 7750, CVA 7845, CM 6160, CM 6360 and CM 6560. This message is documented across the listed CM/CVA models, but built-in and countertop machines do not always share the same removable-unit procedure. Follow the manual tied to the exact model code. On Miele CM and CVA coffee machines, “F73 or Check the brew unit” should be checked with the official user procedure before any part is considered. The exact display or behaviour is a diagnostic clue, not proof that a pump, grinder, heater or control board has failed. Keep the model code, displayed wording and test conditions unchanged. A different warning, external leak, burning smell or hard mechanical noise is a different and unsafe path. Switch off, remove and rinse the brew unit only if the manual allows removal, set its ejector to the shown position and let the empty drive initialise before reinserting. A cleared F73 confirms positioning or residue; a repeated code, immovable unit or damaged mechanism requires Miele service.

Models covered

Safety first

Stop the drink, switch off, unplug where accessible and let hot water, steam and metal parts cool. Never open the housing, bypass an interlock or put fingers into a grinder.

What the symptom may indicate

What the exact symptom tells youThe exact display or behaviour is a diagnostic clue, not proof that a pump, grinder, heater or control board has failed.

Rule out the unsafe look-alikeKeep the model code, displayed wording and test conditions unchanged. A different warning, external leak, burning smell or hard mechanical noise is a different and unsafe path.

Checks in the right order

Confirm the model and symptom
On Miele CM and CVA coffee machines, “F73 or Check the brew unit” should be checked with the official user procedure before any part is considered.
Make the machine safe
Stop the drink, switch off, unplug where accessible and let hot water, steam and metal parts cool. Never open the housing, bypass an interlock or put fingers into a grinder.
Apply the official check
Switch off, remove and rinse the brew unit only if the manual allows removal, set its ejector to the shown position and let the empty drive initialise before reinserting.
Retest once and decide
A cleared F73 confirms positioning or residue; a repeated code, immovable unit or damaged mechanism requires Miele service.

Stop and get qualified help when

Stop immediately for an external leak, dry-running pump, burning smell, hot plug, damaged cable, uncontrolled steam or a fault that returns after the single documented test.

Next step

Repair, replace a part, or arrange a diagnosis?

Use the checks and stop conditions above to choose a cautious next step. A symptom alone never proves that the appliance has failed.

Resolve it without buying anything

Complete the 4 user-accessible checks in order. If normal operation returns and no warning sign remains, no replacement is indicated.

Replace only the confirmed part

If the checks isolate a worn or blocked component, match its complete reference to the exact appliance model before ordering.

This guide does not identify a replacement part. Do not order a generic component from the symptom alone.

Arrange a diagnosis before replacing the appliance

Stop at any warning sign listed above. A qualified diagnosis should confirm that repair is unsafe, unavailable or uneconomical before an appliance replacement is considered.

Sources used

Miele — Miele's official Problem solving guide for CM 7550 CoffeePassion states exactly: “F73 or Check the brew unit”.
Miele — Miele's official Problem solving guide for CM 7750 CoffeeSelect states exactly: “F73 or Check the brew unit”.
Miele — Miele's official Problem solving guide for CVA 7845 DirectWater states exactly: “F73 or Check the brew unit”.
Miele — Miele's official Problem solving guide for CM 6560 MilkPerfection states exactly: “F73 or Check the brew unit”.

Last checked: 30 August 2026