RUN XT: Service & Maintenance Manual - rev. 2.0
Page 6.11
6.3.2. THE INVERTER DISPLAY SHOWS E6 OR E7
These inverter error messages are related to problems with the inverter braking group or the braking
resistor.
NO
Reinstate the connection
YES
Is the braking resistor
correctly connected to the
inverter?
Is the value of the braking
resistance correct?
Replace the braking
resistor
1
YES
Does the machine resume
correct operation after being
turned off for 1 minute?
YES
Probable interference. The
machine is OK
Replace the inverter: see
paragraph 7.13.
NO
NO
E7E6
Follow the procedure step by step to correctly diagnose the problem. Take particular care with the
checks highlighted by circled numbers, which are described in detail below:
(1) With the machine turned off, disconnect one of the resistor wires from the inverter terminal
block and place the tester probes across the resistor. The measured resistance should be 150
Ohm.
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