That noise was not there yesterday

[Barroom Radio Nights]

Machine / revision: Profitec GO 2025
Country / voltage: Canada / 120V
Grinder / burrs / setting / calibration: DF54; stock 54 mm flat burrs; 12 marks from burr touch; zero checked after cleaning.
Basket / portafilter: stock double basket with paper filter; bottomless portafilter (58 mm system where applicable).
Bean / roast date: Ethiopia Sidama medium roast; roast date 2026-07-28.
Dose / yield / extraction time: 18.0 g in, 40 g out, 31 s target/current reference.
Water / temperature: bottled low-mineral water, about 55 ppm TDS; 93°C.
Exact symptom: Pump sounds harsher than usual and pressure climbs slowly.
Tests already performed: Confirm tank valve opens freely, remove inlet restrictions and test water-only flow Already cleaned the obvious removable parts and repeated the test once.
Diagnostic photograph or video: photo of the grinder setting and a short shot video.

I do not want to start removing panels from the Profitec GO 2025 just because I own screwdrivers. The exact fault is below; I am looking for the safest next test before parts-cannon mode begins.

[Barroom Radio Nights]

Confirmed solution: Priming and clearing the water path restored flow; I did not keep running the pump dry. Pressure came back after the blockage/air path was corrected. I am leaving the original numbers above intact so the next person can see what changed.

[Choro Radio]

Short answer: Start with the simple reproducible test before buying parts.
Applies to which model/revision: Profitec GO 2025.
Likely cause: The symptom points first to a setup, wear-part or calibration issue that can be separated from a major failure.
Test to perform next: Return one variable to a known reference, repeat twice, and record whether the symptom changes in the same direction.
Expected result: If that subsystem is the cause, the symptom should change predictably rather than randomly.
Safety limit: Stop if mains voltage, exposed wiring, a pressurized hot boiler, repeated GFCI trips or an unknown leak path is involved. Unplug, cool fully and use qualified service.
Evidence: First-hand owner experience with the same model/configuration; not a manufacturer diagnosis.

[Absurd-Adjuster]

Not the exact revision, but I had a closely related setup with the same general failure mode. The thing that saved time was separating the DF54 / puck-prep side from the machine side instead of adjusting both together. Similar experience, not proof for your unit.

[Raga Bridges]

The useful documented check is the revision-specific maintenance/service sequence, not a generic espresso-machine video. For Profitec GO 2025, verify the manual procedure and part number before opening or ordering anything. If the documented test does not reproduce the fault, stop treating that subsystem as proven.

[Lock-Throw]

Inference only: because the symptom is repeatable and your listed tests already rule out some obvious causes, I would suspect the narrowest remaining mechanical/setup path before a board-level failure. I would not buy a part from that inference alone.

[Barroom Radio Nights]

This is a good example of why the exact revision and test history matter. “My Profitec GO 2025 is bad” produces twenty theories; the measurements above at least give the theories somewhere to die.

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