LiftMaster 1345 no indication of power except for a dim and rapidly flashing light on the wall switch. No LEDs are lit. Verified outlet has power.
396265
Same thing happened to mine. I replaced the main capacitor on the board and it's been fine ever since. Otherwise, if you aren't capable of doing that, you'll need to replace the whole board.
396266
Sorry but I can't answer this one. My problem was that remotes would not open the door from outside. I had to be inside garage about 4 feet from opener for it to work. I thought I was having remote controller problems but it actually was the main circuit board. Bought a new circuit board from Amazon and problem was solved.
396267
Circuit board on the lift motor has gone bad. Very easy to change it out. Just make sure You get the correct board.
396268
First I'd unplug the Power Head from the outlet, while it's unplugged, take the bulbs out of the light fixture, clean the center flat contact with a small blade screwdriver. Pull the inner contact slightly forward. Reinstall the bulbs. Then plug it back into the outlet, wait a minute and see if the system has reset it's self. If the system doesn't work, you probably need a new control board.
396269
Just below the large white wall button is a black lock button. It sounds like the lock button may have been pressed accidentally. Press and hold the lock button for a few seconds, then release. The rapidly flashing light on the white wall button should change to a solid green light. At that point, the LiftMaster should be operational again. If not, the circuit board may have shorted out on the motor. That would require replacement (approx. $80).
1036681
I've consulted with an electronics technician. He says a part that controls the power to the LED is the problem, but it'll be tough to identify and replace (and cost more than the light itself). The LED on mine is actually still good (it lights up dimly, same as yours).
1146407
You have no power to your outlet. Check your garage or other outlets for a gfci protected outlet that has tripped.
2193562
Plugged in, does any lights come on?Make sure you have 110 volts, on extension cord?
1523235
If it's a "No Contact" click button "contact" or "normally open" click button closed it will work provided you have the LIFT MASTER remote. You will also need 24volt AC/DC POWER SUPPLY. A good way to check is take to two wires touch then together if your device works this will too. But make sure there not high voltage i.e. 120 Vac
2161484
This is one of those duh questions, but we've all done it. Did you flip the power switch on? If so and it's not working, you may have gotten a defective unit.
1328797
I am not familiar with your opener, but The LiftMaster 850 basically just makes a contact, the same as a doorbell type switch. If you have two wires that lead to a wall mounted switch, it's almost a certainty it will work. If you have a wiring diagram inside your current opener it may help you find a voltage source to operate the LiftMaster. If you have terminals for the doorbell switch wires on the outside of the opener, just follow the wires to the inside of your opener. This will tell you what wires need to make contact to operate your opener. Disconnect and run those two wires to the Liftmaster. Very easy.
1106749
I don't have lights on mine. Not sure what you are referring to on the machine.
1443292
I'm assuming you mean on the unit itself? If so then the answer is no. When switched off there are no LED's illuminated the unit. When switched on there is a green LED that lighted up to indicate that the power is on. Hope that helps you.
74324
If you plugged the unit into the wall, hit the power switch and the unit doesn't even light up, there is only two possible problems. You have a bad outlet or your amp needs to be returned.
1993419
Power goes directly to the board. I would check your power cord (240V) and the power wiring to the board. What was it doing before you replaced the board?
640201
well check first that ALL you barkers are on and i mean turn off and then bring back up to make sure you get electric to the switch/control part inside the wall. if that will not help my only guess is the black part that control the fan is dead. to be sure i need to open an actual box and look on the electric wiring diagram to see what part can cause that. thanks Avi.
1848329
I have reviewed the information and instruction papers and nothing is given. I hooked it to my power tester and it showed that no power is used without a bulb inserted.
837242
No light, there is a fan... but there is no noise, I actually have trouble knowing if it is running.
173859
Suggest you disconnect the power to the garage door opener. Then remove the logic board. Check the contacts. Are they corroded or bent? Check the Board. Is there any oil on it or dirt? If so, clean it. Is the antenna wire properly secured? If this does not help and the garage door opener has good gears etc. You may consider a new Board.
1936939
I have noticed this as well. This seems like a potential electrical problem which could be dangerous. However no danger here, the control started to blink after a few days then stopped working completely. Sent it back to Amazon
659333
First, make sure you remove the plastic insolator where the battery lives on the remote. Second, check each strip individually connected to the ir box and power supply, make the arrows line up on the connectors for proper continuity. Use the remotes on/off button to activate the strip, then try each color by pressing the corresponding button on the remote. If things don't light, disconnect the connectors, turn one side and reconnect ..... do they light now? Last, you can not piggy back more than one 16 foot strand of LED's to one power standard power supply, there are other accessories to purchase to boost the power.