A clicking sound from your gate motor is an alarm signal that something needs attention. The clicking usually indicates the motor or relay is trying to engage but encountering resistance or power issues. Understanding what's causing the click can help you determine whether it's a simple fix or requires professional repair.
Common Causes of Gate Motor Clicking
1. Low Battery or Power Issues
The most common cause. A weak battery can't supply enough current to engage the motor, causing the relay to click without the motor turning.
How to Fix:
- • Test battery voltage (should be 12V+ for most systems)
- • Check battery connections for corrosion
- • Charge or replace the battery
- • Verify the charger is functioning properly
2. Faulty Capacitor
The start/run capacitor helps the motor get going. When it fails, the motor hums or clicks but won't start.
How to Fix:
- • Test capacitor with a multimeter
- • Replace if defective (typically 10-50μF)
- • Cost: R300-R800 for replacement
3. Seized or Binding Motor
Lack of lubrication, rust, or debris in the gearbox can prevent the motor from turning, causing it to click as it tries to overcome resistance.
How to Fix:
- • Disconnect motor and try moving gate manually
- • Lubricate hinges, tracks, and gears with lithium grease
- • Clean out debris from the mechanism
- • Check for bent tracks or damaged wheels
4. Worn Motor Brushes
In DC motors, carbon brushes wear down over time. This causes intermittent clicking, sparking, and weak operation.
How to Fix:
- • Inspect brushes (replace if less than 5mm length)
- • Cost: R150-R400 for brush set replacement
5. Control Board or Relay Failure
A faulty relay on the control board can click repeatedly without engaging the motor.
How to Fix:
- • Test relay with a multimeter
- • Check for burnt components or loose connections
- • Replace individual relay or entire control board
- • Control board replacement: R1,000-R3,000
6. Obstruction or Overload
If the gate is hitting an obstruction or exceeds the weight limit, the motor may click repeatedly as safety mechanisms prevent operation.
How to Fix:
- • Check for obstructions in the gate path
- • Adjust force/torque settings on control panel
- • Verify gate isn't too heavy for the motor
Quick Diagnostic Steps
- Listen carefully - Note if it's a relay click (near control board) or motor click
- Check power - Measure battery/supply voltage under load
- Manual test - Disconnect motor, try moving gate by hand (should move smoothly)
- Visual inspection - Look for loose wires, burnt components, corrosion
- Smell test - A burnt electrical smell indicates motor/board failure
Repair Priority Order
Start Here (Easiest/Cheapest):
- Battery charge/connections
- Lubrication and cleaning
- Force adjustment
Then Check:
- Capacitor (R300-R800)
- Relay
- Motor brushes (R150-R400)
Last Resort
If the above checks don't resolve the issue, you may need motor replacement (R1,500-R4,000) or control board replacement (R1,000-R3,000). At this point, professional diagnosis is recommended.
Gate Motor Making Strange Noises?
Our experienced technicians can quickly diagnose and repair any gate motor problem. We service all major brands including Centurion, ET Systems, and Gemini throughout Pretoria.