7 Test procedures
7.1 Testing the motor
Requirements:
• digital multimeter with resistance measurement
• Use the remote to identify which motor is possibly defective, as described in chapter 6.2.
• Switch the electronics OFF on the remote.
• Remove the rear cover, as described in chapter 8.1.1.
• Take exact note of the positions of all cables and the sockets that they are connected to. Mark
the connectors and sockets or take a photograph with a digital camera.
• Disconnect the motor plug (1) of the motor to be tested from the power module.
• Connect the digital multimeter to the motor plug contacts (3) and measure the resistance
between the contacts.
Note
A resistance of between 0.5 and 5 ohms indicates a motor ready for operation.
A resistance of between 15 ohms and infinity indicates a defective motor. High resistances are
normally caused by bad connections or worn carbon brushes.