RUN 600 XTPRO: Service & Maintenance Manual - rev. 1.3
Page 6.9
6.4. THE DISPLAY SHOWS “CAUTION = E3” OR “CAUTION =
E4”
These messages are related to the belt motor group. The machine displays:
• CAUTION = E3 failure to actuate movement of the belt motor at the start of the training
session;
• CAUTION = E4 the movement of the belt motor is interrupted during the training session.
The most common causes are principally:
• One of the motor thermal cutouts has been tripped;
• The inverter has shut down for protection from a mains voltage fluctuation (spike or glitch).
In both cases it is recommended to turn off the machine — for at least one hour in the first case, and
for a few minutes in the second case — before resuming normal operation.
If the machine still does not operate correctly, follow the procedures (which differ depending on the
inverter model used) set out in the following paragraphs.
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