You are welcome to contact Danielec Technician on 021 821 2000 or 083 868 5061 or Email:firstname.lastname@example.org
It is possibly overloading.
Transmitter battery may be flat or no power supply is feeding the gate motor or gate motor; safety beam; receiver faulty.
The limits needs to be adjusted (if mechanic limits) or reprogram (if digital limits) GARAGE DOOR MOTOR.
Intercom wire may be broken or door station/handset faulty
There might be no power supply on the system or handset fault.
There might be interference on the system or bad intercom quality.
There is fault certain area of the fence (wire short circuited or wire open loop)
There is bad contact on the fence.
There is close range but not a definite short circuit on that area.
There might be no power supply feeding that specific camera or it faulty.
Hard drive of the DVR is faulty or the DVR is not set on record mode.
These cameras do not have those features.
Door is unbalanced or the hinges are damaged.
Mechanical parts are damaged (spring; wheel or track), door needs to be balanced.
Spring out of tension; door needs to be balanced..