"But when we put a $2 coin in, no ticket came out," Mr Preston told the Herald yesterday.
"I gave the machine a tap and the coin came back out, but when we put the $2 back in, we got nothing back - it swallowed up our money."
He knew of others who were reluctant to use trains because of similar problems, both at Puhinui and at other stations, and was annoyed that Auckland Transport had just raised a penalty fare for passengers without tickets for a second time this year - from $10.30 to $20.
A spokeswoman for the council transport organisation, Sharon Hunter, said passengers unable to buy tickets from faulty machines could always ask rail inspectors for special permits to complete their trips without being penalised.
Inspectors were easily able to check with back-office staff on whether a particular machine had failed, and they had issued 1535 "permits to travel" since the new system of pre-boarding ticket sales were introduced in October.
That was also when electronic Hop cards were rolled out on rail, signalling an end to on-board cash sales.
Ms Hunter said 887 penalty tickets had been issued since early January to passengers who failed to make any attempt to pay a fare.
Auckland Transport had increased the penalty as a deterrent while waiting for legislative changes to provide for fines similar those in Australia, where fare dodgers are fined more than $200 if caught.
She was unable to provide failure rates for ticketing machines, which also serve to top up Hop cards, but said more machines were on order.
Ms Lole-Taylor said a failure by Auckland Transport to do more to educate people - particularly older passengers - on how to use the new system was "absolutely pathetic".
"Instead of making their lives a lot easier, they are being put in a situation where they face a heavier burden from new technology."
Mr Preston said he had lost faith in the system and, despite Ms Hunter's assurance, did not want to risk being fined more than a week's rail travel to work and back.
Hopping it
$20 Penalty for failing to buy a ticket or "tagging on" with a Hop card without a reasonable excuse before boarding a train
$5.04 Penalty for tagging on but forgetting to tag off at the end of a rail trip