A malfunctioning garage door opener can leave you in the cold. Having an automatic door opener in your garage is a great convenience, but you have to give the opener and all its parts regular maintenance, or it can flummox you with erratic behavior. One such quirk is a refusal to open the door as commanded: When this happens, you could get locked out of the garage. This can indicate a problem with the motor, but it might have other causes, including a bent, misaligned or loose track or sensors that are dirty or out of alignment. Motor problems often require professional help. Make basic checks first. Ensure that the unit is plugged in, the door isn't locked and, if you are using a remote, that the remote has batteries. Check the breaker controlling the door opener, and reset if it it's tripped. You should also ensure that the door is engaged with the trolley. Someone might have pulled the emergency cord. Disengage the door from the trolley by pulling the emergency cord if none of the basic checks reveals a simple explanation for why the door won't open.

Try to open the door manually. If it won't move, look for a bent or loose track or a bent roller. Any defective part you find will have to be repaired or replaced. It may also help to spray lubricant on the door rollers. Press the remote or the wall-mounted start switch, listen to the motor and watch the movement of the chain. auto glass replacement sioux falls sdIf the motor hums, but the chain doesn't move, that indicates a problem with the motor. linear garage door opener parts canadaIf the motor works but the chain doesn't move, the chain sprocket may need servicing. linear garage door opener canadaIf nothing happens at all, the safety sensors may be out of alignment. You should see a steady light on both of them, which indicates that they are aligned and working properly.

If one or both lights are off or flashing, look for dirt, cobwebs or leaves in front of the sensor lenses, and clean the lens if necessary. If the lights still flash, manually realign them until the light is steady. This may involve tightening one or both of the vertical door tracks with a screwdriver or wrench. Try the door again after servicing the sensors. If nothing happens when you press the start switch, there may be an electrical disconnection inside the motor casing or in the house circuitry. Look inside the motor for loose wires. If you find one, unplug the door opener before tightening it. Check the circuit wire for connection problems, using a voltage tester, if you can't find any problems inside the motor. Consult a professional if the opener hums but the chain doesn't spin. This could be the result of a faulty capacitor. A test will reveal whether or not it needs to be replaced, but the test involves discharging the capacitor, which can be dangerous. If the motor works, but the chain doesn't move, you should also consult a professional.

The repair may involve disassembly of the motor. /Getty Images Suggest a CorrectionChamberlain 1/2 hp garage door motor hums but nothing moves.... Chamberlain 1/2 hp garage door motor hums but nothing moves. It is about 12 yrs old. Is there a repair I can do or is it time to replace? Is it a hum or a motor that is running but not driving stripped gears.http://www.diyforums.net/changing-gear/shaft-assembly-on-chain-drive-opener-184.html sounds like a motor running but not driving anything Did you open the link I included ?? yes, printing it out and going to work on it.I will reply again in a couple minutes.There is so much white plastic shavings. there is no droop in the chain. So it looks like I need to replace the shaft and gear assembly. I had the same problem. My garage door was in open position, when I press the button to close it, all I hear was hum noise for 2 seconds. What I found out the problem is the metal piece (Trolley) that door arm attach to was in contact with the stop screw on the rail.

In Chamberlain manual that piece is called Trolley. Door Arm is attahced to Trolley and can be released from Trolley by pulling the rope. There is a big screw on the rail that stops trolley from going further towards the opener housing. You should leave some space between the screw and trolley. Once I made the adjust, it works. I have a photo but I cannot post it here. You just solved my problem. Thanks for saving my $$ & time! Just thought i'd add to the success stories as this ended up being my exact issue as well. The trolley had gotten stuck against the bolt, i had actually had to gently tap on it with a flat head screwdriver and mallet before it would start moving again but after making the neccessary adjustments we're back in business. Thanks for the useful info, so glad it didn't end up being a logic board. Thanks that worked for us too. Worked like a charm. Garage Door Won’t Open? Learn the fixes you can do yourself and which you may need some help

There are 6 typical reasons why your door might not be opening. 3 are what we would consider mechanical issues (caused by or derived from the machinery or working parts) and 3 are problems found with your motor (when the motor itself is not working properly). Some are DIY fixes and others you should get help. Top 3 Mechanical issues: A very common problem that we see with garage doors. Torsion springs (across the top of the door) and Extension springs (those on either side of the door) are rated based on a certain number of cycles. When these cycles run out, or when a spring breaks/snaps the door can no longer be lifted by the motor. When this happens the springs must be replaced and we recommend calling a specialist. Cables run from the bottom of the door all the way up along- side of the door. Most of the time if a spring breaks then the cable also breaks and should be replaced when you replace the springs (see above). we recommend calling a specialist for this because it is dangerous if you do not know what you’re doing.

The lock handle is located on the outside of the door and is a security feature that is still seen today. handle is engaged it eliminates the ability to open the door automatically. Make sure you check to see that your door is not locked before you try opening the door. This is something that you can check before having a specialist come out. This is a common problem, commonly caused by 1 of 2 things. Your battery could be weak. Weak batteries cause the remote to work inconsistently and could make one think that the remote is broken. Replace the batteries in the remote to see if that is the problem. Below is a video on how you can replace the battery by yourself. It requires a CR 2032 battery. There is an interference with the frequency of your remote and the motor. What do we mean by this? An example would be if you could open your garage door from a few houses down and now it will only open when you’re right outside your door. To fix this you are going to have to find where the interference is coming from.

Precision Overhead Garage Door has a tool that is able to detect this and decode any “megacode formatted radio frequency data transmission”. In most cases, once the interfering signals are detected they can be eliminated or reduced. Usually caused when the door is too heavy and there is too much strain being placed on the opener. You will most likely hear a humming noise coming from the garage when you try to open and close the door but nothing actually happens. To correct this, you can do one of two things; either, replace the gears or replace the whole opener. choose will depend on the age and feature set of your opener. Holding down the opener keypad button for too long will activate, as well as, deactivate the lock mode. garage door is on lock mode then nothing will happen when you try to open and close the door. keypad button down for a few seconds in order to deactivate the lock mode. This can be done by you before calling a specialist.