Technogym Forma - The Inverter Display Shows E12

FORMA: Service & Maintenance manual - rev. 3.0
Page 6.15
6.3.5. T
HE INVERTER DISPLAY SHOWS
E12
This inverter error message is related to the opening of the motor thermal cutouts.
Is the thermal cutout on the
motor OK?
YES
Replace the belt motor
Replace cable FR-7 or
FR-8
NO
YES
2
NO
1
YES
E12
Does the machine resume
correct operation after being
turned off for 1 hour?
Probable overheating of
the motor. The machine is
OK
NO
Is the wiring between the
motor thermal cutout and
the inverter correct?
Does the error persist
after disconnecting the
motor thermal cutout
cables from the inverter
input?
Replace the inverter
Programming error on the
inverter. Reprogram it.
NO
YES
3
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) Disconnect the motor thermal cutout cables from the inverter and place the tester probes
across them. The measured resistance should be less than 1 Ohm.
In some cases the value may be higher due to oxidation of the contacts. To reinstate
correct operation, it is necessary to perform a special operation which will be described
to you on contacting the Technogym Service.