Signs and Symptoms
Most people call because something sounds or looks wrong, not because they know which part failed. Start from what you notice: the table and the checker below point to the likely cause and the service that fixes it.
What You Notice and What It Means
Read across from the symptom. The urgency column uses three plain levels, explained under the table.
More columns to the right: swipe.
| What you notice | The likely cause | How urgent it is | The service that fixes it |
|---|---|---|---|
| The door will not open | A broken spring, a cable off its drum, or the opener has lost power | Stop using it now | Garage Door Repair |
| A loud bang, then the door is stuck | A torsion spring has snapped | Stop using it now | Garage Door Repair |
| The door closes, then goes back up | Safety sensors blocked or out of line, or the close limit set wrong | Book soon | Garage Door Openers |
| The door sags or hangs crooked | A cable slack on one side, worn hinges or a bent section | Stop using it now | Garage Door Repair |
| A frayed lift cable | Rust and wear at the bottom bracket | Stop using it now | Garage Door Repair |
| The remote only works close up | A weak remote battery, or the opener’s antenna or receiver | Can wait | Garage Door Openers |
| The gate will not latch | The gate has dropped on worn hinges, or the latch has moved | Book soon | Gate Repair and Operators |
| The gate operator hums but does not move | Stripped gears, a release left engaged, or a seized hinge or roller | Book soon | Gate Repair and Operators |
The Urgency Key
- Stop using it now: the door or gate is under load it cannot hold, or someone could get hurt. Leave it where it is, keep people and cars clear, and call.
- Book soon: it still works, but the fault will get worse with use. Arrange a visit within days, not months.
- Can wait: an annoyance or a wear item. Mention it at the next visit or book when it suits you.
Match a symptom to its cause
Choose the door or the gate, then what you notice.
Choose what you notice, then press Show the likely cause.
What Not to Try Yourself
- Do not loosen, wind or unhook a spring or the bracket at the bottom of a cable.
- Do not lift a door with a broken spring by hand or with the opener.
- Do not stand under a door stuck partway open, or drive under it.
- Do not push or pull a stuck gate with a car.
- Do not open an operator’s control box while it has power.
Safe Checks Before You Call
What can I safely check on a garage door?
Whether the opener has power (the light, the outlet, the breaker), whether the safety sensors have dust or a cobweb on their lenses and their small lights glow, whether the door is locked with a manual slide bolt, and whether the remote battery is flat. Look at the springs and cables, but do not touch them.
What can I safely check on a gate?
Power to the operator, a blown fuse or tripped outlet after a storm, anything in the path of the gate or its sensors, sand or a stone in a slide track, and the battery in the remote or keypad.
How do I tell a spring problem from an opener problem?
With the door closed, pull the opener’s release and try lifting the door a little by hand. A balanced door feels light and stays put halfway. A door that feels very heavy or drops points to the springs; stop there and call.
What should I write down before calling?
What the door or gate does, any noise you heard, when it started, and whether anything hit it. Those details narrow down the cause before anyone arrives.