Scheduled Service Interval Hour Reminder

Common Symptoms

• COMMANDER display shows fault code 14 during normal operation
• Yellow or amber indicator light illuminates on the operator panel alongside code 14
• Tower and lights continue to operate normally with no power loss or shutdown
• Audible alarm may chirp briefly when code 14 first appears at startup
• Code 14 reappears at every startup until the service interval is acknowledged and reset in the COMMANDER controller
• Engine oil, air filter, or fuel filter service interval counter has reached its programmed threshold (typically 250 or 500 hours)
• No reduction in output voltage, engine RPM, or light brightness is observed

Probable Causes (Ranked by Likelihood)

• Engine hour meter has reached the programmed service interval threshold (commonly 250 or 500 operating hours) and the COMMANDER controller is displaying a routine maintenance reminder Very Likely
• Service was performed but the interval counter was never reset in the COMMANDER controller menu after the last oil change or filter service Likely
• Unit was returned from a rental job with hours accumulated past the service threshold and the counter was not reset by the previous operator or yard technician Likely
• COMMANDER controller service interval threshold was programmed to a shorter hour count than the standard Kubota service schedule, causing the reminder to trigger earlier than expected Possible
• Controller memory glitch caused an incorrect hour count to be stored, triggering the reminder prematurely Less Likely

Step-by-Step Diagnostic Procedure

1. Check the COMMANDER controller display for the current engine hour count. Navigate to the Hours menu (press the scroll or INFO button on the side panel). Note the total hours and compare against your service log to confirm whether actual service is due.

2. Inspect the engine oil level with the dipstick. Oil should be between the MIN and MAX marks on the dipstick. If the oil is dark, gritty, or below MIN, service is genuinely overdue and you should perform an oil and filter change before resetting the code.

3. Inspect the engine air filter. Pull the filter canister and check the paper element for heavy dust loading, tears, or oil contamination. A clogged air filter on a Kubota D902 or D1105 will cause hard starting and black smoke even though code 14 itself does not cause those symptoms.

4. Check the fuel filter bowl for water and sediment. On Kubota-powered Allmand towers, the inline fuel filter is typically located near the engine block. Drain the bowl drain screw and look for water separation or dark sludge.

5. Review your fleet service log for this unit's serial number. Confirm whether oil, filter, and general service were performed at the last interval. If yes and the code is still active, the counter was simply not reset.

6. To reset the service interval counter on the COMMANDER controller, enter the Service menu by holding the appropriate button combination per your unit's firmware version (typically STOP plus INFO held for three seconds, then navigate to Reset Service Timer and confirm). Consult the Allmand service manual for your specific firmware version if the menu path is not labeled on the panel.

7. After resetting, cycle the COMMANDER controller OFF then back to AUTO or RUN and confirm code 14 no longer appears at startup. If it reappears immediately, the reset was not saved and you should repeat the procedure or contact Allmand technical support for a controller firmware check.

Frequently Asked Questions