JURA ENA 8 Error
| CONF | DIAGNOSIS | PART MATCH | ACTION |
|---|---|---|---|
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91%
CONF
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Brew Unit Service Kit (O-Rings and Sieve)
The 'Ground Too Fine' error is primarily a hydraulic resistance fault. Over time, coffee oils and fine particulates form a lacquer-like obstruction on the stainless steel filter plate (sieve) and cause the EPDM O-rings to swell or lose lubrication, creating enough backpressure to reduce the flow rate below the flow meter's detection threshold.
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5%
CONF
|
Flow Meter
The flow meter contains a small turbine with magnets that signal a Hall effect sensor; if the turbine is partially obstructed by calcium scale or if the sensor is failing, it will inaccurately report a low flow state to the CPU, triggering the 'Ground Too Fine' error even if the water path is clear.
SKU: 60447
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4%
CONF
|
Brew Unit Drain Valve
If the drain valve's internal seals fail or the spring tension weakens, it can cause an internal pressure leak. This diversion of water away from the brew chamber reduces the volume passing through the flow meter, causing the logic board to interpret the resulting low-flow condition as a blockage caused by fine coffee grounds.
SKU: 62713
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DIY Repair Guide
Watch exactly how to replace the Brew Unit Service Kit (O-Rings and Sieve).