Technogym Spazio Forma - The Inverter Display Shows E14

SPAZIO FORMA: Service & Maintenance manual - rev. 1.0
Page 6.17
6.4.6. THE INVERTER DISPLAY SHOWS E14
This inverter error message is related to poor isolation between the motor phases and ground.
Are the motor phases
isolated f rom ground?
YES
Replace the belt motor
Check and reinstate cable
SF-8
NO
YES
2
E14
Are the motor phases
isolated f rom ground at the
inv erter output?
Replace the inv erter
NO
1
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 cable from the inverter and place the tester probes between terminals U,
V and W of the inverter and the earth screw of the inverter. The measured resistance should be
in the order of MOhms or higher.
(2) Disconnect the motor cable from the motor and place a tester between its terminals U, V and
W and the earth screw of the inverter. The measured resistance should be in the order of
MOhms or higher.