On this page
Before you replace anything, run these checks in order. About half the openers we are called out to are not actually the failed component — the door is.
Step 1: is it the door or the opener?
Pull the emergency release cord to disconnect the trolley, then lift the door by hand. A healthy door lifts smoothly with light effort and holds at waist height. If it is heavy, drops, or grinds, the problem is the springs or the hardware and no opener will fix it. Stop here and call — and do not force it. See what to do when a spring breaks.
Step 2: power and lock
- Is the opener plugged in and the outlet live? Test with a lamp or phone charger.
- Has the breaker or GFCI tripped? Storm-season surges do this frequently.
- Is the wall console in "lock" or vacation mode? A locked console disables remotes — it looks exactly like a dead receiver.
Step 3: safety sensors
If the door closes then reverses, or will not close at all while the remote still opens it, suspect the photo-eyes six inches off the floor either side of the opening. Look for a steady indicator light on both. Wipe the lenses, check nothing is in the beam, and gently realign until both lights are solid. Misaligned or dirty sensors are the single most common "opener fault" there is.
Step 4: motor sounds tell you a lot
- Hums but nothing moves: stripped drive gear or a disconnected trolley.
- One click, then silence: capacitor or logic board — common after a lightning-season surge.
- Runs then stops mid-travel: force or travel limits, or the door binding in the track.
- Grinding or slapping: chain or belt tension, worn sprocket.
- Nothing at all, no lights: power, board or transformer.
Step 5: remotes and range
Replace the remote battery first; then reprogram it to the receiver. If the wall button works and no remote does, the receiver or antenna is the suspect. A sudden collapse in range is frequently RF interference — a new LED bulb in the opener itself is a classic culprit. If one remote works and another does not, it is the remote.
The short version: Check the door before the opener, then power, then sensors, then listen to the motor, then the remotes. That order resolves or correctly identifies the large majority of faults.
