Stanley Garage Door Opener Model 3220.51

[Alexia Borson]

Im looking for some advice on troubleshooting/fixing the obstruction

beam sensor assembly (part #49522) on a Stanley Quite-Glide garage door

opener (model UT605-F09).The red LED on the sensor used to be on all the time and the beeper

would only sound when the beam was broken. Now, the red LED is off all

the time and the beeper sounds every few seconds. I tried cleaning the

optics and setting the sensor/emitter up on my workbench, independent

of the motor unit, with a separate 12 VDC power supply. Even with the

sensor and emitter lined up a few centimeters away from each other, the

red LED won't light up and the beeper sounds. I can hear a faint buzz

from the sensor board when the emitter is pointed at the detector. The

buzz goes away when I hide the emitter.The resistors and capacitors on the sensor's circuit board look to be

in good shape (nothing is burned out or leaking), so I suspect either

the phototransistor, the IR LED, or one of the other semiconductor

components is shot. I'd like to try replacing them all before giving

up on the unit. The transistors and diodes are labelled clearly

enough, but I'm not sure what parts to buy to replace the

optoelectronics and the 8-pin chip (labelled P7104 I 7507807 EM810G).

Can anyone help me identify them?Thanks in advance for your help.

Don't replace anything until you are are sure it is bad.

My neighbor had trouble like yours and the problem was the sensor

housing on one side had fallen down some. So realign the sensors until

both leds are glowing. Bob AZ

I'm sure it isn't an alignment problem since I've tried moving the

emitter directly in front of the receiver and the problem persists. I

tested the wiring too, since I've heard that is also a common problem

with beam sensors. It was all good.I've been quoted $50 for a new sensor assembly. It would be a shame to

replace the whole thing when replacing a $2 component might do the

trick.

Ask in sci.electronics.repair. If the chip is a microprocessor and

it's bad, you're screwed, but I think it's a generic part, maybe a

comparator, and I don't think it's failed. The most common problems

with garage door sensors are cracked solder joints and broken wiring,

and wires can break inside the insulation (usually where they pass

through the hole in the box) but look fine from the outside.

> The red LED on the sensor used to be on all the time and the beeper

> would only sound when the beam was broken. Now, the red LED is off all

> the time and the beeper sounds every few seconds. I tried cleaning the

> optics and setting the sensor/emitter up on my workbench, independent

> of the motor unit, with a separate 12 VDC power supply. Even with the

> sensor and emitter lined up a few centimeters away from each other, the

> red LED won't light up and the beeper sounds. I can hear a faint buzz

> from the sensor board when the emitter is pointed at the detector. The

> buzz goes away when I hide the emitter.

> The resistors and capacitors on the sensor's circuit board look to be

> in good shape (nothing is burned out or leaking), so I suspect either

> the phototransistor, the IR LED, or one of the other semiconductor

> components is shot. I'd like to try replacing them all before giving

> up on the unit. The transistors and diodes are labelled clearly

> enough, but I'm not sure what parts to buy to replace the

I have the same Stanley 49522 Photo Eye beam sensor assembly, but the pins

have

rusted and broken off of the photo transistor, so it is no longer usable.

Does

anyone know the part number of the photo transistor and where I might find

it? Or

the wavelength of this 49522 beam assembly? I tried using a Radio Shack

photo

transistor with a wavelength of 850 nm but it only worked when the

receiver was

side by side with the sender.Thanks,

Jim

Pay lowest prices on our full line of Stanley garage door opener parts and accessories at North Shore Commercial Door. We have Stanley garage door opener remote control transmitters, wireless keypads and receivers.

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my mid 1980,s stanley garage opener problem started when the 2 motor mounting bolts came out and the motor hung from gearbox when door opened - door completely opened but would not close - i replaced mounting bolts but motor does not run even with chain removed. when closer button is pressed, i hear faint hum but no attempt from motor to run - after approx 10 seconds ,clicking sound starts as if door is obstructed. any diag appreciated

I opened the cover and found both motor mounting screws had fallen out, allowing the motor to drop and thus disconnect itself from the motor capacitor (hence the hum-no-run condition). I also found a crack in the gearcase, which turned out to not be a problem at this time. The screws for the motor had thankfully been caught by the bottom cover. I reinstalled the screws (with some threadlocker) and reconnected the wire to the motor capacitor. It works! It may not live for another 36 years, but we'll surely get some more use out it

The company believed, due to a problem with printed circuit boards used in affected garage door openers, the door may open or close without warning. This poses a risk of injury or death if entrapment occurs.

WASHINGTON, DC -- In cooperation with the U.S. Consumer Product Safety Commission (CPSC), the Stanley Electronics Division of The Stanley Works, located in Novi, MI, announced the recall of several models of circuit boards used in the manufacture of Stanley and Fimbel Garage Door Openers.

The company believed, due to a problem with printed circuit boards used in affected garage door openers, the door may open or close without warning. This condition renders the automatic reversal safety feature inoperable. As a result, when the door closes, it will not reverse as intended upon striking a person or object. This poses a risk of injury or death if entrapment occurs. The company reported this problem to the CPSC as soon as it became apparent. The company was not aware of any injuries.

The automatic garage door openers were sold nationwide between January 14, 1991 and April 11, 1991, under the names Stanley and Fimbel (under the brands of Power Lift, and EZ Lift). The openers were sold by retail stores and garage door opener installers and dealers across the United States. While the majority of affected units were stopped in inventory, some 5,000 defective openers may be in consumers' possession.

Brand names, model designations and date codes are as follows:

Consumers who purchased any of the openers should look on the power unit mounted on the garage ceiling for the date code. Owners of recalled openers should unplug and disconnect the opener immediately and then discard or destroy the product. As the company has sold its garage door division and is no longer involved with garage doors, there is no longer a remedy available as part of this recall.

Continued use of affected doors in any but the manual mode of operation could result in serious injury or death. Failure to unplug the unit may result in electrical fire.

The CPSC's mission is to protect the public from unreasonable risks of injury and death associated with consumer products. The CPSC is the federal agency responsible for consumer product safety. Some 15,000 different types of consumer products fall within the Commission's jurisdiction and each year these products are involved in an estimated 29 million injuries and 22,000 deaths.

Owners of recalled openers should unplug and disconnect the opener immediately and then discard or destroy the product. As the company has sold its garage door division and is no longer involved with garage doors, there is no longer a remedy available as part of this recall.

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