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HOME > > Ask the Slot Expert: Does a slot machine malfunction when it is not configured properly?
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Ask the Slot Expert: Does a slot machine malfunction when it is not configured properly?

20 May 2026

By John Robison, Slot Expert™

I received an email from a paralegal asking if I would speak with her about a denied jackpot case in which her attorney was representing the person who was denied the jackpot. We set up a time for her to call me.

The appointed time came and went with no call from her. Fifteen minutes late and still no call. I gave up after 30 minutes. Never heard from her again.

Maybe just as well. I have no patience with cases in which a machine displays a message saying a player won more than was possible to win on the machine. I also have no patience with how the media portrays the casinos in these cases or the way they took my comment out of context and made it seem like I thought the player in this case deserved to be paid. (As I recall, when I said, "If the machine tells you you won, I think you've won," I was referring to winning combinations that land on the payline as a result of a valid wager. I did not think the man in this case deserved to be paid over $1 million.)

Let me give you the details. Man sits down to play a Mystical Mermaid slot machine at the Sandia Resort and Casino on an Indian reservation in New Mexico. The machine carries a sign saying that the maximum payout is $2500 (and, of course, malfunctions void all winnings).

The player claims he triggered the bonus round. At some point the machine displays a message indicating that he won $1,597,244.10. A pretty good trick on a machine with a maximum payout of $2500, though the player claims that more can be won in the bonus round.

I would like to have asked the player what the sequence of winning combinations were that led to such a large payout.

As I said last week, memory got corrupted on the machine and that led to the erroneous winnings amount.

In any case, the player's expectation was to win $2500 on a spin. If the player wanted to win millions, he would have been playing a wide-area progressive. Standalone machines rarely (if ever) have jackpots that large and, if they do, they will certainly advertise the jackpot on the machine. They won't just display a message saying you're a millionaire now.

The player was offered a PR jackpot of $2500, the max jackpot on the machine. A fair offer, I think.

My position in these cases is that the player can't expect to be paid more than they expected to win from the machine.

I recently found a case that may make me restate my position.

A lady played a $5 Double Top Dollar slot at the Imperial Palace in Biloxi, MS. The lady made a $10 wager and three Double Diamond symbols landed on the payline.

According to the paytable on the belly glass, that was the top-paying combo at $8000.

The scrolling display on the machine, however, said she had won 200,000 credits -- $1,000,000.

I'll cut to the chase. IGT did not configure the machine correctly.

The analysis of the machine showed that it was configured as a stand-alone progressive and a top jackpot of $1,000,000.

You might argue that the lady should get the million because it's a progressive and other players have funded it.

When have you ever seen a progressive jackpot with a round number? I think the mil was the reset number and the technician never configured the machine to have a progressive rake.

The machine did not malfunction. It did what it was configured to do. This was a case of PEBCAC: problem exists between chair and computer.

The case went through the courts, which eventually found that the lady was entitled to the $8000 advertised on the machine for landing the jackpot combination. The finding was based on contract law. The player agreed to make a bet and casino agreed to pay out certain amounts when certain events happened as detailed in the paytable.

I think paying the lady $8000 was correct. I know from personal experience that vendors don't have to be disadvantaged when a clerk makes an honest mistake.

Actually, I think she should have gotten the $8000 and some additional money or benefits as a gesture of good will, but courts can't award money for PR.

I'm going to revise my position slightly. A player has no right to win an amount of money that cannot be won on a machine.

In my first example, there was no way to win a million on the machine. He had no case for claiming that amount of money.

In the second, there was a way, inadvertently, to win a million on that machine. We can't just dismiss the claim out of hand.


If you would like to see more non-smoking areas on slot floors in Las Vegas, please sign my petition on change.org.



Send your slot and video poker questions to John Robison, Slot Expert™, at slotexpert@slotexpert.com. Because of the volume of mail I receive, I regret that I can't reply to every question.

Copyright © John Robison. Slot Expert and Ask the Slot Expert are trademarks of John Robison.

 
John Robison
John Robison is an expert on slot machines and how to play them. John is a slot and video poker columnist and has written for many of gaming's leading publications. Hear John on "The Good Times Radio Gaming Show," broadcast from Memphis on KXIQ 1180AM Friday afternoons. You can listen to archives of the show online anytime.

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The Slot Expert's Guide to Playing Slots
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