I just had recently installed a residential shaft garage door opener for my garage. But a week later, it began generating noise. I can figure out whether it is coming from the door or engine. I put the lubricant but still the noise is driving me angry. What do you think is the problem.

 

It sure sounds like the IMS is failing. It is inevitable. Happens to all engines.

 

gears in the motor ,
may be adjusted for smoother opening by adjusting tension on springs or tension on motor,
or may have been put on in wrong alignment and making extra pressures

 

Nylon rollers for the door track helps.

 

 

Disconnect the drive from the small electric 'engine' or motor and run it alone without the doors moving. If you hear the sound that is bothering you then it is the motor. If it only happens when the doors are moving it is the rolling mechanism. These things are simply never that quiet.

 

+1 on Dan's rec... also try spraying silicon lube on the rollers.

 

Not entirely correct. The motor is now unloaded and may be quiet.
If the motor does make noise after being disconnected, then it is the motor, but you can't rule it out yet if it doesn't make noise.

With the door disconnected, open and close it by hand and see if it's binding. Lube and adjust where required. Or get the installer back out and check. Those springs are very dangerous. If you don't know what your doing you can get seriously hurt.

Also, make sure the belt/screw/chain the motor is connected to is free of debris. They get crap on them stuck in the grease/oil and become noisy when passing around the gears/pulleys. I did some woodworking in the garage one day and sawdust caused my doors to be noisy.

 

Let us know if you solve the problem!