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