Common ATM Error Codes and What They Mean (Genmega & Hyosung)
Written by the myFloridaATM.com install team — Winter Park-based, ATM-only techs with 10 years and 75+ installs across Central Florida. Last updated October 19, 2026.
What do ATM error codes mean?
Short answer: ATM error codes point to the part of the machine that failed — usually the card reader, cash dispenser, receipt printer or communication link. Most fall into a few categories: card read errors, dispenser or cassette faults, printer errors and communication errors. Exact codes differ by model, so check your operator manual or call us with the code shown on screen.
The Central Florida Angle
In Central Florida, the most common error calls we get follow the weather:
- Communication errors after afternoon thunderstorms knock out power or internet.
- Card reader errors in humid stores near doors that open all day.
- Startup errors after brief power outages.
Should I restart my ATM after a storm?
Wait until power is stable, check for water, then do a normal restart. Call us if it doesn’t come back.
Common ATM Error Categories
| What you see | Likely cause | First step |
|---|---|---|
| Card error / cannot read card | Dirty or failing card reader, EMV fault | Clean the reader with a cleaning card; call if it persists |
| Dispenser error / cash jam | Bill jam, worn feed, cassette misaligned | Power down, clear the jam per manual, reseat cassette |
| Cassette low / empty | Out of cash | Reload cash |
| Printer error / no paper | Paper out or jammed | Reload paper, clear jam |
| Communication error / host down | Modem, internet or phone line issue | Check the modem lights and power; restart |
| Out of service after power loss | Interrupted startup | Full restart; call if it does not recover |
Exact error codes vary by Genmega and Hyosung model and software version. Always follow your machine’s operator manual.
When to Call a Technician
- The same error returns after a restart
- Any sign of tampering or skimming
- Water, lightning or storm damage
- Repeated dispenser jams
Frequently Asked Questions
Why does my ATM say communication error?
Usually the connection to the processor has dropped — the modem, internet or phone line. Check power and signal, then restart.
How do I clear a cash jam?
Power down, open the vault, remove the jammed bills following your operator manual, reseat the cassette and restart.
Can you fix ATM errors remotely?
Many communication and configuration issues can be diagnosed by phone or remotely.
Related: ATM repair · ATM maintenance · Wireless vs. internet vs. phone line
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