Technical User Guide
13
DA 74BC Winch Motor
5.3
Troubleshooting/Remedy
Even though the DA 74BC has been designed to work without supervision, malfunctioning may occur.
Check the following to remedy any faults.
Symptom
Cause
Solution
The winch motor does not
run, the LED does not
flash at all.
No power supply or is the power supply
below 12V?
Check supply voltage.
Check fuses.
Check assembly according to the
connection and circuit diagram.
Has the motor plug been mounted?
Mount the plug.
Has calibration been forgotten?
Press the CALIBRATE button; the
LED must be constantly on while the
winch motor opens and closes.
The LED (A) flashes
quickly 10 times/second.
The motor stutters.
Remove any object which may have
been trapped.
Has the solenoid been mounted?
Mount the solenoid.
Inlet, window or door not
completely open/closed.
Adjust the mechanical connection.
No feedback signal from
the house computer.
When using ON/OFF 278M and 378M,
connect Q1 to C17/B17 on the main
module.
Table 2: Troubleshooting/remedy