When the opening system of your garage door stops working, the cause of the problem is usually quite simple, and the solutions are also quite easy.
We present in this post the most common problems, along with the most likely repairs for each one. If none of the following solutions seems to correct the problem, you will need to consult the user manual or contact a professional company, such as Cradock.
Neither the remote control nor the wall switch triggers the opener.
When the garage door does not respond when you press the remote control or the wall switch, it is almost sure that the power supply has been interrupted.
The most common problem is simple: the motor unit has been unplugged. Check the output where the door opening is plugged in and make sure the cable is fully plugged in.
It is also possible that the circuit breaker, fuse, or GFCI that controls the opener circuit has tripped or burned. If you see that other lights or electrical circuits in the garage do not work, this is the likely cause, and you will have to reset the switch or GFCI or replace the blown a fuse. If the circuit breaker or GFCI trips repeatedly, it is a sign that there is a short circuit somewhere in the system, possibly even in the garage door opener itself.
Finally, it is possible that the motor of the garage door opener has burned out and is not working. This is a problem that will require you to replace it.
The garage door does not work with the remote control or the numeric key.
There are several possible solutions when a remote control or the keyboard stops the operation of the opener:
- Come to the door. You may be out of reach of the garage antenna. Modern garage door openers are essentially small radios operating at approximately 315 mH, and a few centimeters extra distance can affect the signal.
- Make sure that the antenna of the motor unit is not damaged in any way.
- If the door works well with the wall switch, the battery likely needs replacing on the remote control or keypad.
- Reprograms the remote control or the numeric key. Each garage door has a slightly different method of reprogramming, so check the instructions, or look for information online.
The garage door does not close completely
If the garage door opens properly but does not close completely, it can be for one of the following reasons:
- The limit switch may be incorrectly configured
- Safety sensors may need adjustment or realignment
- The rollers may be rusted or damaged and cause the door to get stuck in the tracks. Replacing damaged rollers, or lubricating them with silicone lubricant, can correct this problem. Sometimes, the tracks can change or bend, which can also cause the problem.
The garage door reverses before reaching the ground.
Two possible problems can cause a garage door to reverse before it touches the ground:
- Garage door openers have an adjustment screw that controls the closing force: the pressure with which a door is allowed to descend before the engine shuts down. When the door reverses before it reaches the floor, this is often because the closed force configuration needs adjustments.
In effect, the friction of the door rollers inside the tracks “tricks” the door opener into thinking that the door has reached the floor, and the opener must be adjusted to reduce the sensitivity.
- Damaged or rusted rollers can also create additional friction, inducing the door opener to stop prematurely. Make sure the rollers are in good condition and well lubricated to avoid this problem.
The garage door reverses immediately after touching the floor.
When the garage door immediately jumps up after touching the floor, it is also a closing limit switch problem.
The adjustment of the closing limit adjustment screw on the motor of the doors must be adjusted in small increments until the door stops when it reaches the floor.
The garage door does not open completely.
The possible causes are:
- It may be necessary to move the upper limit switch to the motor unit
- Unstable or damaged rollers can also cause the door not to open fully. It inspects and replaces broken rollers and lubricates rusty rollers.
The garage door does not open in winter.
Sometimes, a garage door that goes down very well will not open, especially in winter.
If this happens, look for a screw in the motor unit to adjust the sensitivity of the opener. Especially in winter, when the rollers become rigid, the door opener could refuse to open. Lubricating rollers can also help with this problem.
The methods to adjust the sensitivity vary; consult the user manual for instructions.
The garage door opens, but the engine does not stop.
When this unusual problem occurs, it means that the rising limit switch should probably move away from the motor unit.
Rarely, this problem occurs suddenly; If it happens, it will usually be noticed when you first install the garage door opener.