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31ITW Food Equipment Group

ITW Food Equipment Group 31

Fill error – system exceeded maximum fill time

Source: ITW FOOD EQUIPMENT GROUP/00008 EDH-EDL_EUH-EUL Dishwashers Operation and Error Card F48737 (01-23).pdf

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What does ITW Food Equipment Group 31 mean?

The system exceeded its maximum fill time, so the control flagged a fill error. The machine could not fill to its required level within the allowed window, which most often traces to a pinched or kinked supply hose or an interrupted water supply preventing normal filling.

Symptoms

  • Error code 31 shown on the display
  • Machine slow to fill or not filling
  • Cycle stalls during the fill stage
  • Low or interrupted water supply

Common causes

  • Supply hose pinched or kinked
  • No or low water being supplied to the machine
  • Restricted fill path
  • Fill valve malfunction

Diagnostic steps

  1. 01

    Power off the machine

    Press the power button to power off the machine after the system reports it exceeded maximum fill time.

  2. 02

    Check the supply hose

    Verify the supply hose is not pinched or kinked.

  3. 03

    Confirm water supply, then restart

    Check that water is being supplied to the machine, then restart as normal.

  4. 04

    Call Hobart Service if it persists

    If the error continues to display, a fill valve malfunction is possible; contact Hobart Service at 1-888-4HOBART.

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When to call a professional

Contact Hobart Service if code 31 persists after confirming the supply hose is clear and water is reaching the machine. A system that still exceeds maximum fill time may have a fill valve malfunction, which an authorized Hobart technician should test and replace. Proper filling is required before the wash and sanitizing rinse can run correctly.

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