How do I test if the safety sensor is working? My door won’t go down and flashes when the button is pressed.

If you have a GDO-7 v1 door opener and it is not working as expected, there could be several possible reasons for the issue you're experiencing. Here are a few troubleshooting steps you can follow to diagnose and potentially fix the problem:

1. Check the power supply: Ensure that the door opener is receiving power. Check if the power cord is securely plugged into a working power outlet. If the power supply is interrupted, the door opener may not function properly.
2. Inspect the remote control: Check the batteries in your remote control. Weak or depleted batteries can cause communication issues between the remote and the door opener. Replace the batteries with fresh ones and try operating the door opener again.
3. Verify the safety sensors: The flashing yellow LED (door status LED) indicates an issue with the safety sensors. These sensors are usually located near the bottom of the garage door tracks. Ensure that they are properly aligned and free from any obstructions such as dirt or debris. Clean the sensors and make sure the alignment indicator lights are solid and not blinking. Misaligned or obstructed safety sensors can prevent the door from closing or opening.
4. Test the wall control panel: Press the button on the wall control panel to open the door. If the door opens successfully using the wall control panel, it could indicate a problem with the remote control. Try reprogramming or resetting the remote control according to the manufacturer's instructions.
5. Check for any obstructions: Inspect the garage door and its tracks for any obstructions that may be preventing it from opening or closing properly. Remove any debris or objects that could be blocking the door's movement.
6. Consult the user manual or contact customer support: If the above steps do not resolve the issue, refer to the user manual for additional troubleshooting steps specific to your GDO-7 v1 model. If you're still unable to resolve the problem, it's recommended to contact the manufacturer's customer support for further assistance.

Remember to prioritize your safety during troubleshooting. If you are unsure or uncomfortable with any step, it's best to consult a professional garage door technician for assistance.

Sensor must show steady light to close circuit and let opener work. If aligned, then there is a loose or broken wire. Try reaiming first to get steady light. Then check all wires . Another way to test and prove that is the issue is if u hold down the wired button at ur back door and the opener closes, then it is sensor issue. Good luck.

the photoelectric safety sensors are not working. either they are not lined up or they have a broken/disconnected wire. door goes up without them working, but will not go down without the safety system working unless you press and hold down button.

Electric dryer no start does nothing

Check dryer Terminal block prongs both outside prongs should give combined 220, and 110 each if u check 1 outside & 1 center (ground) prong. Also check house electrical outlet for full voltage.

CHECK THERMAL SHUT OFF THERMOSTAT USUALLY LOCATED ON THE BLOWER. for OHMS or resistance with a meter. Should show a closed circuit. Ohms WHEN THIS FUSE BLOWS IT WILL SHUT DOWN EVERYTHING.

NEXT Test the PUSH start switch with meter for OHMS. Should show OHMS when pushed in or on start, and no ohms or infinity when in off position.

If you hear a humming/clicking sound from motor area you more than likely have a bad motor.
Try this test out to see if u have weak windings or relay/capacitor on motor.
Open the dryer door and turn by hand the drum while machine is on ON position. And you or someone else presses the door engagement switch in. If it starts up then u have bad windings

Another thing to check is the belt safety switch. With a multi meter.
Especially if u just replaced the belt. The belt safety switch is attached to the Tensioner and motor. IT LOOKS LIKE A DOOR SWITCH SOMEWHAT a little black pc of plastic with 2 prongs going into it. Sits at bottom of motor. Under the Tensioner. Attach meter clips to the 2 prongs on switch, Then when the little white push button is pressed in it should show continuity and none when released.

Lastly check ur DOOR SWITCH for continuity with a meter when the button is pushed in the (on/Door closed position,) it may have gone bad.


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What to Test When Whirlpool or Kenmore Dryer Won Start or Run Troubleshooting Why Your Dryer Won Start PartSelect com Kenmore Whirlpool Dryer Won Start Easy Fix

3 FLASHES
Door won't close
Safety beam obstacle
Check for obstacles. Align the safety beam Section 4

The green light flashing 4 times is sending the code for " Safety reversing sensorsslightly misaligned (dim or flashing LED)". These are the sensors in the doorway. Tweak them a bit.

It is safety "eyes" sensor issue with your system. Lights flashing on the main console indicate a potential problem. Model up, from yours WD962KD, I believe, has a "smart" wall mountable remote that displays a potential problem. In your case, I would check that both safety "eyes" sensors are working (both should have lights on, one amber and one green). Post if you need more help.

If the main light flashes 10 times when the door reverses it is a door sensor problem. Look closely at the green lights to make sure one isn't flickering ever so slightly. Tweak them a bit.

Easy problem - and easy (temp) solution.
The safety pet sensors are blocked or broken
Press the button in the garage and hold it until the door is completely closed.....this over rides the safety sensor at the base of the garage door.
You cannot over ride the sensor with the wireless remote.
Check to be sure that the sensors are pointing at one another.
If they are, check the wires.
If good, the sensors have gone bad. Order replacements.

sounds like the safety door sensors are at fault,also did you reprogram the remotes by pressing the smart button on the logic board,when the safety sensors are bad the door will reverse to open state.you can pully the rip cord to manualy close the door untill you solve the problem.