Essentially there are two classes of faults: First, the safety edge can be defective (transmitter and/or receiver), consequently the edge will not release (LEDs on the control unit are not even flashing). Second, the safety edge may be hyper-sensitive. Typically in this case LEDs are flashing and relays clicking, or the gate tends to stops running and reverses. If this fault appears only rarely, the reason might not be found at the gate. The safety edge will however react highly sensitive to pressure.
In the first case it is most likely the receiver that needs to be replaced. Only if this does not help, the transmitter should be replaced as well.
In the second case the transmitter should be replaced. For the replacement either the self-learning transmitter OSE-T 1100 can be usedor the transmitter OSE-T 1110 with a fixed transmitting power. The transmitters OSE-T 1110 should be used with gates of a length of more than 2 m only. Moreover this transmitter should not be used in the (old) rubber profile with 22 mm hollow chamber because the breaking force could increase on too high.
Below you find a schema how to distinguish the various sensors:
Receiver Description: Receiver (same for all transmitters); Inscription: RECEIVER; Lens: sunk-in, black; Sealing compound: black, without colour swatch.