> For the complete documentation index, see [llms.txt](https://docs.verifone.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.verifone.com/support-uk/v240m/errors.md).

# Errors

Troubleshooting guides for V240M error messages and faults.

### Related guides

* [Red Dot Error](/support-uk/v240m/errors/red-dot-error.md)
* [Waiting For Merchant Login](/support-uk/v240m/errors/waiting-for-merchant-login.md)
* [Unable To Connect To Host](/support-uk/v240m/errors/unable-to-connect-to-host.md)
* [Reports Failed on the Terminal](/support-uk/v240m/errors/reports-failed-on-the-terminal.md)
* [Unexpected Login ID](/support-uk/v240m/errors/unexpected-login-id.md)
* [Not Detecting Inserted Cards](/support-uk/v240m/errors/not-detecting-inserted-cards.md)
* [Contactless Not Working](/support-uk/v240m/errors/contactless-not-working.md)
* [HVP Not Working (Apple/Google Pay)](/support-uk/v240m/errors/hvp-not-working-apple-google-pay.md)
* [Screen Flickering](/support-uk/v240m/errors/screen-flickering.md)
* [Total Reverting to Zero](/support-uk/v240m/errors/total-reverting-to-zero.md)
* [Printer Not Working](/support-uk/v240m/errors/printer-not-working.md)
* [Error Pages](/support-uk/v240m/errors/error-pages.md)
* [Communications Fallback](/support-uk/v240m/errors/communications-fallback.md)
* [Blank Display](/support-uk/v240m/errors/blank-display.md)
* [Keypad Does Not Respond](/support-uk/v240m/errors/keypad-does-not-respond.md)
* [Transactions Fail to Process](/support-uk/v240m/errors/transactions-fail-to-process.md)


---

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