Floor scrubber and sweeper error codes
Find commercial cleaning machine fault codes, alarm beeps and warning-light meanings by manufacturer and model, with source notes and operator-safe first checks.
Search by diagnostic format
Record the complete signal before resetting the machine. Code format, LED pattern and operating state all matter.
Identify the exact model
Confirm the model and serial plate. Similar model names may use different control boards and code systems.
Capture the full signal
Note the displayed code, beep count, flashing LEDs and what the machine was doing when the fault appeared.
Check the source revision
Match the explanation to the correct operator or service document and production revision.
Tennant T7 repeating beep codes
The original T7 uses repeating alarm beeps for several propel interlocks. The model record separates the normal reverse alarm from actual fault conditions.
Diagnostic information is a reference only. Always follow the current manufacturer manual and site safety procedure.
Is it a fault code, beep sequence or warning light?
Record exactly what the machine displays, including letters, numbers, LED patterns and the number of beeps. A code from one model is not a diagnosis for another. Start with the published Tennant T7 guide, and use the equipment help form when your exact model is not covered.
Advance / Nilfisk SC500 alarm codes
Find the documented warning conditions and operator-safe responses from official Advance manual 9099980000, printed page 26. Applies to the cover models 9087352020 and 9087353020; newer lithium-ion applicability is unverified.
Check SC500 alarm meanings and model scope →Kärcher B 50 W Bp display messages
Read the documented meaning and safe response for messages in Kärcher operating instructions 59787140, printed page 22.
Open B 50 W display messages →How do I record a floor scrubber fault code or alarm beep?
Record the exact machine model, control panel and complete signal before looking up its meaning. A short description such as “it beeps” leaves out information needed to match the correct reference. This checklist helps you prepare an equipment question; it does not diagnose a fault.
What should I write down?
| Signal observed | Details to preserve |
|---|---|
| Display message | Copy all letters, numbers, leading zeros and accompanying words. Check whether a character is 0 or O, or 1 or I. Photograph the visible display only when the machine is safely stationary. |
| Warning light | Record the icon or label, its color, whether it is steady or flashing, and other indicators shown at the same time. Do not assign a meaning from color alone. |
| Repeating beep pattern | Count beeps in one complete repeating group, note the pause between groups and copy any simultaneous display message. State whether the sound occurs once or repeats. |
| Symptom without a code | Describe what changed: water left behind, no solution flow, dust escaping or debris remaining. Separate what you observed from your suspected cause. |
Why does the control-panel version matter?
The Tennant T300 North American operator manual lists membrane, Pro-Membrane and Pro-Panel controls separately. It also separates machine, on-board charger and optional ec-H2O service indicators. Record which panel or system produced the indication rather than treating every warning as the same type of code.
Copy this fault-report template
Serial number (share privately if needed):
Control panel and installed options:
Exact display message or icon:
Beep count per repeating group and pause:
When it appeared and which function stopped:
Visible symptom and safely captured photo:
Manual document number, revision and relevant page:
Observations already made (no guessed diagnosis):
Where should I look up the recorded signal?
- Tennant T7 repeating beep reference — confirm the original T7 model scope.
- Advance / Nilfisk SC500 alarm reference — check the documented model applicability.
- Kärcher B 50 W Bp display messages — preserve the complete message.
Use the manual-selection checklist to match your documentation. If there is no code, use the symptom observation guide. Submit the completed record through Equipment Help for a reference question or correction.
Safety: Observe only an existing indication from a safely stationary machine. Do not deliberately recreate a hazardous condition, bypass an interlock or remove protected covers. Follow the manufacturer’s shutdown precautions and refer repair work or electrical faults to qualified service personnel.
Source and verification: Tennant T300 operator manual 9014501, North America, Rev. 06 (09-2024), printed pages 8–9 and 29–31; safety pages 4–5. Official document checked October 1, 2026. The reporting template is an original CleanEquip Pro editorial aid, not a manufacturer diagnostic procedure. No new code meanings or all-serial applicability are claimed.
SELECTED MANUFACTURER REFERENCES
Look up a recorded code or beep pattern
Choose the exact machine, then the code or repeating beep pattern already observed. This small reference covers 21 selected entries across original T7, T500, T600 and T12/T12XP; it is not a complete diagnostic database. Do not substitute a nearby code or another model.
Open a model below to read its selected references. With JavaScript enabled, you can also choose a model and code above.
Tennant T7 — original model — selected entries
Original T7 only; T7+ is excluded. Match the control panel and serial applicability. Count one complete repeating group already observed; do not move the machine or recreate a fault just to count beeps.
- 1 beep — only in Reverse — Historical service information identifies a repeating one-beep reverse warning, not a fault in that operating state. Do not apply this entry to a one-beep sound in Forward or a different alarm system. Direction and the repeating pattern must already be known. Historical 331045, Rev. 00 (12-2004), printed p. 25 / PDF p. 29; third-party-hosted manufacturer document
- 2 beeps — Propel pedal was pressed without the operator in the seat. Record the seated state already observed. Do not bypass or test the seat interlock.
- 4 beeps — The key was switched on while the propel pedal was engaged. Record the startup sequence already observed. Do not reproduce an unsafe startup to confirm the code.
- 5 beeps — Throttle-system fault. Stop use and contact qualified service; the operator manual directs this fault to a Tennant service representative.
- 6 beeps — Brake-system fault. Keep the machine stopped and secure it as the manual requires. Contact qualified service; do not continue with abnormal braking.
- 7 beeps — Parking-brake-system fault. Contact qualified service. Do not bypass the parking brake or perform electrical tests.
- 8 beeps — Emergency-stop button is engaged. Record why it was used. Do not release a safety stop until the hazard is understood and resolved; unexplained or recurring indications require service.
- 9 beeps — The key is on while the charger is plugged into the machine. Record the charger connection already observed. Follow the matched charger shutdown/disconnection procedure; never disconnect a charging DC connector under load.
331040, Rev. 11 (02-2024), printed p. 22 / PDF p. 24 · Full model reference and safety limits
Tennant T500 — selected entries
T500 Pro-Panel LCD codes. T500e and charger/ec-H2O tables are separate. Confirm fitted options and the matched manual.
- 0xFFF0 — Emergency stop is activated. Record why the emergency stop was used. A code match does not establish that restarting is safe.
- 0x0201 — Head-lift actuator circuit problem. Record head position already observed and the complete code. Refer internal diagnosis to qualified service.
- 0x0501 — Vacuum motor circuit problem. Record the existing pickup symptom and exact code. The code does not identify one failed component.
- 0x0901 — Propel motor circuit problem. Record when movement stopped and the full display. Do not reproduce the fault to gather more information.
9015223, Rev. 07 (07-2024), printed/PDF p. 32 · Full model reference and safety limits
Tennant T600 — selected entries
T600 service table only; do not transfer these entries to the T600e panel. Configuration and serial applicability must be matched.
- 0xFFF0 — Emergency stop activated or optional electronic parking brake disengaged. Record the complete indication and fitted brake option. Do not bypass an interlock or force the machine to travel.
- 0x0201 — Head-lift actuator circuit problem. Record the code and head position already seen. Qualified service must determine the failed component.
- 0x1006 — Scrub-head imbalance. Record the head type and previous brush work. Follow the matched manual; do not repeatedly reset a returning fault.
4024351, Rev. 07 (05-2026), printed/PDF pp. 41–42 · Full model reference and safety limits
Tennant T12 / T12XP — selected entries
Selected meanings agree in North America / International 9009910 and Europe 9009918. This does not make every regional procedure interchangeable.
- F1: Rcv Tank Full — Recovery tank is full. Record the indication and tank state already known. Use the matched manual for any permitted tank-handling action.
- F2: Sol Tank Empty — Solution tank is empty. Record the cleaning mode and tank state. Use only the filling instructions for that model and mode.
- F4: Batt Very Low — Battery charge is low. Record the battery type and indicator. Use its matched charging procedure; this tool does not authorize battery work.
- F5: Propel Error — Propel controller error. Stop safely and record the full message. Refer a persistent fault to qualified service.
- F9: Pickup Error — Vacuum is not operating. Record whether another code alternates with this one and the existing water-pickup symptom.
- F14: ec-H2O Error — ec-H2O system is not operating. Record the full display and fitted cleaning system. Refer persistent faults to qualified service.
9009910, Rev. 11 (12-2024), printed p. 34 / PDF p. 36; Europe comparison on linked article · Full model reference and safety limits
Code not listed? Copy the exact message, model, panel and manual details into Equipment Help. An unknown code remains unknown; a similar-looking entry is not a match.
Prepared by CleanEquip Pro Editorial, October 16, 2026, using the linked document references. No hands-on test or technician review is claimed. Selections stay in this page and are not submitted to a form.
Published alarm and display references
Seven model-focused references below include alarm, code or display information. The T300 page has symptom guidance; this index does not claim a complete T300 code table. A code meaning is not a confirmed failed component.
- Tennant T7 — Original T7; official multi-beep table plus a historical reverse-alarm reference; T7+ excluded.
- Nilfisk / Advance SC500 — SC500 cover models 9087352020 / 9087353020; lithium applicability unconfirmed.
- Kärcher B 50 W Bp — B 50 W configuration and order number must match.
- Tennant T600 — T600 table; do not transfer to the separate T600e panel.
- Tennant T500 / T500e — T500 manual 9015223; match panel and options. T500e uses a separate manual.
- Tennant T12 — T12 regional manuals: 9009910 North America / International; 9009918 Europe.
- Kärcher Armada BRC 40/22 C — Armada US 120 V, order 1.008-060.0.
Download model-specific observation records · Evidence and correction standards
Inventory updated October 16, 2026: refreshed article links and configuration limits. Prepared by CleanEquip Pro Editorial. Source-check dates remain on the linked articles; this is not a technician review.
New model references — October 2026
Three additional guides with manufacturer document versions and model-specific reference sections.
- Tennant T5 Manual, Fault Lights & Water Pickup Guide
Find Tennant T5 operator and parts manuals, document revisions, fault-light references and a water-pickup observation checklist. - Tennant T500e Manual, Service Indicators & Troubleshooting
Tennant T500e manual 9015506, service-indicator page references, low-flow and water-pickup guidance, plus a parts-document request checklist. - Factory Cat MiniMag Manual & Error-Code Reference
Find the legacy RPS MiniMag manual, identify the drive and deck variant, and record 7601, 7602, 7700 or 2C00/2C01 errors for service.