Master Mechanic garage door opener has lost it's range. Only works when remote is very close to garage door. I have replaced the batteries in the remotes, reprogrammed the remotes and disconnected the motor unit from power. I also have tried moving and extending the antenna wire with no luck. Any other suggestions ??? Thank you.

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Feb 18, 2012 - Uploaded by RGDMan
Master mechanic 601mm on the buildmark .... Reset Garage Door Keypad Code PIN & Remote Control Opener - Duration: 2:51. by ... Chamberlain CLICKER Universal Remote ControlProgramming Video - Duration: 5:21. by ...

try adding on the antennaes, ive had success with this in the past

Probably you have a weak battery in your remote transmitter. When the garage door is closed it requires a stronger signal. Open the remote and replace the battery.

Yes, replace the remote battery. It is losing power, thus working at short range only. Loss of range is the key indicator for a remote battery going out.

--W/D--

ANY TIME YOU CHANGE THE BATTERY IN A REMOTE IT NEEDS TO BE REPROGRAMED.

ON THE CIRCUIT BOARD YOU WILL FINS A SQUARE BUTTON.
PRESS AND RELEASE NOW HOLD DOWN THE BUTTON ON THE REMOTE FOR ABOUT 20 SECONDS. WHEN YOU PRESS THE REMOTE THE NEXT TIME THE DOOR SHOULD OPEN.

If your remaining remote(s) have normal range then it is your keypad that is going bad. When one of the units start loosing range it is common for the door to cut down even further on the signal strength.

If the remote opens and closes while inside the garage but not outside , there are a few things it could be. Assuming it was working fine before..
1. weak battery in remote.
2. remote itself could be bad. (unless you have more than 1 remote acting the same)
3. Logic board in opener is going bad causing limited range.Is the wire that hangs down from the opener straightened out? That is your remote antenna.Some people have coiled or even cut it off..reducing range.
4. Less likely but this can happen- interference from another electronic device, wireless routers, cell phone, new appliances etc.. can reduce remote range. Any new electronics recently purchased?

You keypad has lost signal strength. It has enough to work when the door is open but not enough to penetrate the door. A replacement is needed.

It sounds like a case of your keypad losing signal strength enough that it cannot transmit through the closed door. If a new battery doesn't do the job a new keypad will.

There are two possibilities here. One is the remotes batteries are weak and need to be replaced. The other is the receiver is going bad. If new batteries don't increase the range of the remotes then you will need to replace the logic board.