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DISPLAY
Memory error inverter
Over current inv
Over temperature inv
Precharge error inverter
8.3
TROUBLESHOOTING
DESCRIPTION
Can not power on
Coffee spreading when
grinding
Cooling fans not stopping
in operating
Filter holder fork unable
hold the filter holder
Grinder not operating
after tare
Grinding weight different
to the external scales
Grinding weight is less
or overdosing
Machine not rating
Tare time too long
Touch screen
not functioning
MYTHOS 2
POSSIBLE CAUSE
•
Inverter memory is faulty.
•
Motor is blocked.
•
Motor initial sprint is too much
high.
•
Inverter phase is faulty.
•
Ventilation is insufficient.
•
Room temperature is too much
high.
•
Inverter sink is obstracted.
•
Communication error with inverter.
SOLUTIONS
•
Check bean hopper in correct position.
•
Check incoming power supply.
•
Check main switch and bean hopper safety switch (replace if necessary).
•
Check main board and fuses on the main board (replace if necessary).
•
Minor spread is normal.
•
Check clump crasher.
•
Replace clump crasher.
•
Check fans time setting.
•
Check motor temperature setting.
•
Check relay in main board.
•
Adjust filter holder cradle level.
•
Check the wiring inverter to motor.
•
Replace main board.
•
Replace inverter if necessary.
•
Replace motor if necessary.
•
Perform scale calibration (menu-accessories-calibration).
•
If within tolerance of (+/- 0.5g) on every grind it is not a fault.
•
Check and/or adjust "ramp start" and/or "comp my coffee".
•
Check if any coffee block the scale to move.
•
Check scale sensor connection to display.
•
Check scale sensor assembling.
•
Replace display if necessary.
•
It is normal within tolerance 10 seconds.
•
Increase tare precision value.
•
Turn machine OFF/ON.
•
Replace display board if necessary.
POSSIBLE SOLUTIONS
•
Turn machine OFF/ON.
•
Check inverter connection to main
board.
•
Check inverter and/or replace it.
•
Turn machine OFF/ON.
•
Clean grinding chamber and chute.
•
Reduce grinding speed.
•
Replace clump crusher.
•
Check inverter and/or replace it.
•
Turn machine OFF/ON.
•
Cool the machine.
•
Check fans.
•
Turn machine OFF/ON.
•
Check inverter connection to main
board.
•
Check inverter and/or replace it.
8.3
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