Matrix T50x-02, Service Manual

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7.8 Error message 01 44 / 02 B 6 / 02 B 7 / 02 B 8 / 01A8 / 02B5 troubleshooting
[Symptom ]
0144 - Motor over current.
02B6 - Speed up is overcurrent.
02B7 - Speed down is overcurrent.
02B8 - Running status is overcurrent.
01A8 - Internal electronic thermal relay protection: motor load is too large.
02B5 - Inverter sensor the normal rated current over 150% , can hold 60 sec.
[Solution]
a. Check the condition of the running deck and belt. Replace the belt and flip or replace the
running deck as needed.
b. Replace the MCB.