Passengers were terrified as a gust of wind sent empty carriages swinging at the top of the 60m (198ft) Sky Swing at Cardiff's Winter Wonderland.
Sayers Amusements, which operates it, said there was no fault with the ride.
It said it shut down automatically - as it should - when the wind got too strong on Friday.
The operator released a statement after it had investigated what happened on the towering ride.
It said when the ride started the wind had not exceeded the ride's  wind speed limit, which is 10m per second.
However, when gusts picked up the ride shut down.
"It took less than five minutes to get all gondolas unloaded," the operator said.
"No one was hurt as the safety system was working correctly at all times, and a full explanation was given to everyone on the ride, and they were all given a full refund, and all stayed onsite for a while afterwards."
It added that the ride re-opened after the wind eased.
The Winter Wonderland is a Cardiff Council event and the authority said it has sought assurances steps have been taken to ensure there is not another incident.

Sean Murray said his studio had endured "years of secret stupid legal nonsense" after the broadcaster Sky said the game's title infringed its trademark.
"We finally settled with Sky (they own the word sky). We can call our game No Man's Sky," he tweeted.
The game was expected in June, but has been delayed until August.
Hello Games has not revealed whether it paid Sky to settle the lawsuit.
"I now know more about trademark law than any sane man would ever want to," tweeted Mr Murray in a follow-up post.
The studio is not the first company to face a legal challenge from Sky, which provides satellite television and broadband services in Europe.
In 2013, Microsoft had to change the name of its cloud storage service SkyDrive to OneDrive, following an infringement claim.
A year earlier, US technology firm Livescribe pulled its Sky pen from UK stores after receiving a legal challenge from the satellite broadcaster.
It renamed the product "Livescribe wifi smartpen" and recalled stock using the old name.
Sky told the BBC it had no comment on the dispute.
An amusement ride which was shut down after its carriages crashed into each other in mid-air with people on board is safe, its operator says.
[NEXT_CONCEPT]
The maker of the highly anticipated video game No Man's Sky has revealed a legal challenge that threatened the game's name.