This case is usually happen as time goes by. When you first buy your door opener, maybe there’s no visible trouble. But after some time, you’ll find your Craftsman garage door opener won’t open. If this thing happens, before you call any professional repairmen or call Craftsman to claim your warranty, it’s better to check out yourself first. Because there are some cases where you can fix your door opener by yourself. There are some instructions which will guide you either. Anyway, here are things you should do when your opener won’t open.
Check the Symptoms Sometimes, the trouble is not clearly visible unless you observe thoroughly. So, at first, check your door. After it’s closed, pull the release cord to lift the door and see whether it opens and closes without any problem and smoothly. If not, then it may be caused by the tracks, springs, or rollers, and not by the opener itself. Next, test the wall switch. You should unscrew one of its wires and touch other terminal with it. When the opener runs, you should replace its switch. Or, it may be because the wall switch works, but the remote doesn’t work. It means, instead of fixing its opener, you should replace the remote or batteries.
There’s also one case when sensor goes bad. It happens when your door goes up, but you need to hold down the wall switch to make it go down. If this happens, you should know sensors are classified by brand, so make sure you buy new ones which are really made for your opener, it can’t be randomly purchased. Another case is, it’s already plugged to the outlet, but no light or no sound when you push its switch or remote. If this happens, then you need to remove its circuit board. It doesn’t as difficult as you thought before. In fact, it’s like unscrewing several screws and disconnecting several plugs.
Further Symptoms Another thing which may happen is it actually works, except there’s no light. If this happens, then you need to check the socket and remove the old one. You need to remove the housing of circuit board to get the light socket. After that, unclip the old one and snap the new one. If you find your door won’t open even though the trolley carriage moves, then this problem can be fixed by installing new trolley from other side.
Next, if your opener won’t open and only make grinding noise, you just have to pull out the old gear. Main drive gear, sprocket, and shaft come out as a piece. Procedure should be performed on a bench top. Over all, if you want to avoid cases of Craftsman garage door won’t open, first, you need to lube the rail. Once a year, apply some dabs of oil along the rail. Check the chain tension by measuring the distance between the rail and the chain. After checking every symptom, it’s better to know whether your garage door opener is really caused by its opener, or by other causes.
If your garage door won’t open, this video maybe can really help you.