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| Error Code | Description | Solution |
|---|---|---|
| 0 | Normal Status | None |
| CDN04 | CDU Connection Failure | Check cables between CDU and Mainboard, remove and re-connect. Use electrical parts contact cleaner on terminals. This error is of concern only if repeated. Outside interference may cause it (neon signs, lights). |
| D1704 | Modem connection error | Phone line will not support data communication. In-line filter may help. Excessive EMI emissions from outside source (neon sign, freezer) are likely causes. Check all programming (especially Dual Master Key setting and Host Processor Mode). |
| 20001 | Unable To Detect Cassette | Remove and replace cassette. Check the micro-switch on the inside left wall of the dispenser. Adjust if needed. Check the white plastic clips that hold the cassette in place — if broken the cassette will not stay in the dispenser. |
| 20002 | Low Cash | Low cash warning sensor is open. When 'Low Cash Warning' is enabled, this sensor opens when the cassette reaches (~75 bills). If typically stocked with low bills, consider disabling this function. |
| 20003 | Reject Bin is Full | Empty reject bin. If bin is empty, do a Cassette Total from the settlement menu. If that doesn't help, check that AP, BIOS and CDU ROM versions are compatible. |
| 20004 | Vault Door is Open | Check vault door switch (white plunger switch in upper left corner of vault). Check that the black and white 2-wire connector is properly connected at rear of main board. Move the vault switch forward to aid door clearance. Check for continuity between the switch and mainboard connector. |
| 20005 | CDU Type Mismatch | CDU ROM does not match AP software. The dispenser and mainboard must share the same country code (USA or Canada). If they don't match, reprogram the CDU. Also check if wrong parameters were entered when the CDU was programmed. |
| 20010 | Receipt Paper Jam | Remove jammed paper. Release receipt paper drawer by pressing the tab with the green sticker at the front of the printer. You may have to remove the printer to locate difficult jams. Do NOT use metal objects — use a business card or stiff paper. Use only 21# paper. |
| 20012 | Receipt printer feed lever open | Close the feed tray on the printer. If already closed, try opening and closing it, try the printer reset switch. Otherwise the printer may require service. |
| 20013 | Receipt paper is empty | Replenish the paper roll. If paper is already in the printer, look for jams or obstructions. Try the printer reset switch. If error persists, the printer may require service. |
| 20014 | Thermal printer is overheated | Allow the printer to cool and try again. Try the reset button on the printer. If this error persists, the printer will require service. |
| 20215 | CDU detects bills prior to dispensing (CS2 sensor) | Remove any jammed bills from the dispenser. If no bills are present, use compressed air to clean the dispenser (a sensor may be blocked by dust). Check and reseat all belts — loose belts can slip off rollers and block sensors. |
| 21315 | CDU detects bills prior to dispensing (CS13 sensor) | Remove any jammed bills. If no bills present, use compressed air to clean the dispenser. Check and reseat all belts. |
| 21A15 | CDU detects bills prior to dispensing (CS1A sensor) | Remove any jammed bills. If no bills present, use compressed air to clean the dispenser. Check and reseat all belts. |
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