Domus Error Codes — All 64 Diagnostic Codes & Fixes

Service Guy AI • Complete Domus diagnostic database for commercial laundry equipment

Total Codes
64
Washer Codes
52

About Domus Error Codes

Domus error codes cover washers in our database (64 total codes). The severity distribution includes 3 high codes. Domus machines use alphanumeric diagnostic codes displayed on the control panel. When an error appears, the machine typically stops mid-cycle and requires troubleshooting before resuming operation. Each code in the table below maps to a specific failure mode — sensor fault, valve failure, control-board issue, drum imbalance, drain blockage, heater circuit problem, or door-lock failure. Resolving these codes promptly is essential to keep a laundromat running and avoid revenue loss from out-of-service machines.

Service Guy AI maintains the Domus diagnostic database with troubleshooting steps, possible causes, required parts (with OEM part numbers where available), and skill-level guidance ranging from beginner attendant fixes to advanced electromechanical work that requires a factory-certified technician.

Most Common Domus Issues

  • Drain pump impeller jam (F02 variants)
  • Water inlet valve clogging (nF codes)
  • Door lock failure (dL codes)
  • Control board issues on newer models

How to Use This Domus Error Code Database

Locate your Domus error code in the table below and click it for a complete troubleshooting walkthrough. Codes are color-coded by severity — critical codes require immediate attention (the machine will typically lock the door and refuse to run), while medium and low codes allow continued operation but should be cleared before the issue escalates. For complex faults or when the displayed code isn't listed, run a Service Guy AI photo diagnosis — upload an image of the error display and the AI matches it against the full database including model-specific firmware variants.

All 64 Domus Diagnostic Codes

Every documented Domus error code for commercial washers and dryers. Click a code for full troubleshooting steps, parts, and skill-level guidance.

Code Fault Equipment Severity Skill
5-2 Domus 5-2 Error Washer medium basic
AL01 Fill timeout Washer low basic
AL02 Drain timeout Washer low basic
AL03 Door lock error Washer low basic
AL04 Overflow alarm Washer low basic
AL05 Temperature fault Washer medium basic
AL06 Motor fault Washer high professional
AL07 Unbalance error Washer medium basic
AL08 Inverter fault Washer high professional
AL09 Communication error Washer medium professional
AL10 EEPROM error Washer medium basic
AL11 Heat timeout Washer medium basic
APP_UPDATE Domus APP_UPDATE Error Washer medium basic
AUTH_FAIL Domus AUTH_FAIL Error Washer medium basic
BLUKEY_ERR Domus BLUKEY_ERR Error Washer medium basic
BT_OFF Domus BT_OFF Error Washer medium professional
CARD_BAD Domus CARD_BAD Error Washer medium basic
CARD_DECLINED Domus CARD_DECLINED Error Washer medium basic
CK_BILL_SW Domus CK_BILL_SW Error Washer medium basic
CK_C_COIN Domus CK_C_COIN Error Washer medium basic
CK_L_COIN Domus CK_L_COIN Error Washer medium basic
CK_R_COIN Domus CK_R_COIN Error Washer medium basic
CK_TRANS_VF Domus CK_TRANS_VF Error Washer medium intermediate
COIN_JAM Domus COIN_JAM Error Washer medium basic
CONNECT_ERR Domus CONNECT_ERR Error Washer medium basic
CONN_ERR Domus CONN_ERR Error Washer medium basic
CURSOR_BLINK Domus CURSOR_BLINK Error Washer medium professional
DECLINED Domus DECLINED Error Washer medium basic
E Domus E Error Washer medium basic
E07 Domus E07 Error Washer medium basic
E1 Domus E1 Error Washer medium intermediate
E2 Domus E2 Error Washer medium intermediate
E3 Domus E3 Error Washer medium basic
E4 Domus E4 Error Washer medium basic
E5 Domus E5 Error Washer medium basic
E6 Domus E6 Error Washer medium basic
EL-6 Domus EL-6 Error Washer medium basic
ERROR_16 Domus ERROR_16 Error Washer medium professional
EXTRA_COIN Domus EXTRA_COIN Error Washer medium basic
F1 Error Code F1 Both medium intermediate
F10 Error Code F10 Both medium intermediate
F11 Error Code F11 Both medium intermediate
F12 Error Code F12 Both medium intermediate
F2 Error Code F2 Both medium intermediate
F3 Error Code F3 Both medium intermediate
F4 Error Code F4 Both medium intermediate
F5 Error Code F5 Both medium intermediate
F6 Error Code F6 Both medium intermediate
F7 Error Code F7 Both medium intermediate
F8 Error Code F8 Both medium intermediate
F9 Error Code F9 Both medium intermediate
FM7 Domus FM7 Error Washer high professional
H Domus H Error Washer medium basic
IN_USE Domus IN_USE Error Washer medium intermediate
LED_DIM Domus LED_DIM Error Washer medium basic
NO_MACHINES Domus NO_MACHINES Error Washer medium basic
NO_POWER Domus NO_POWER Error Washer medium basic
NO_SIGNAL Domus NO_SIGNAL Error Washer medium basic
OFFLINE Domus OFFLINE Error Washer medium basic
REJECT_DENOM Domus REJECT_DENOM Error Washer medium basic
REJECT_FAST Domus REJECT_FAST Error Washer medium basic
REJECT_H Domus REJECT_H Error Washer medium basic
SERVER_DOWN Domus SERVER_DOWN Error Washer medium basic
WRONG_HARNESS Domus WRONG_HARNESS Error Washer medium basic

Still Stuck? Use Service Guy AI

Still seeing a Domus error code that isn't in the table? Domus has firmware variants across different model years and control platforms. Service Guy AI can read a photo of your error display and match it against the full database — including model-specific firmware variants that aren't yet in the static error code list.

Service Guy AI Diagnosis Browse Domus Equipment

Domus Parts, Service & Equipment Replacement

When an error code points to a failed component, AAdvantage Laundry Systems carries OEM Domus replacement parts and offers nationwide service dispatch. For laundromat owners whose Domus equipment has reached end-of-life or whose repair costs exceed 50% of replacement value, AAdvantage also handles equipment financing and new-machine installation with full coin/credit-card retrofit packages.

All Error CodesService Guy AI DiagnosisDomus EquipmentOEM Parts & ServiceEquipment Hub

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By — Founder, WashBizHub. Third-generation laundromat operator. Reviewed by the WashBizHub editorial team.

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