Hobart LXn/LXGn - Error 017: Wash Tank Pressure Sensor Failure

🛑 Critical / Stop Operation
Warning: The information provided here is for educational purposes only. Working with commercial kitchen equipment involves high voltage, gas, and high temperatures. We strongly recommend contacting a certified service technician for any repairs. We are not responsible for any damage or injuries resulting from DIY repair attempts. This information is provided 'as is' without any guarantees of completeness or accuracy.

TLDR

On your HOBART LXn/LXGn SERIES DISHWASHERS unit, error code 017 indicates the wash tank has not reached its minimum water level, preventing operation. This usually points to issues with water supply, the fill valve, or the wash tank pressure sensor. Always start by clearing the error by holding the power button for 5 seconds; if it persists, inspect the water inlet and sensor.

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Technical Details

Repair Steps:

  1. Check Water Supply and Inlet: Verify the main water supply valve to the dishwasher is fully open and that adequate water pressure is present. Inspect the external water supply hose and internal inlet piping for any kinks, blockages, or closed shut-off valves. Ensure the building’s water supply to the appliance is not interrupted.
  2. Inspect Fill Valve Operation: Power cycle the machine and listen for the distinct sound of the water fill valve activating. If no water enters the tank, or if the valve makes no sound, use a multimeter to check for proper voltage supply to the fill valve solenoid during the fill cycle. Test the solenoid for continuity; an open circuit indicates a faulty coil. Replace the fill valve assembly if it’s not opening or receiving power.
  3. Clean Wash Tank and Filters: Debris or limescale buildup in the wash tank or its associated plumbing can interfere with water flow or sensor operation. Drain the machine, remove internal racks and spray arms, and thoroughly clean the wash tank, especially around the sump area and any visible level sensors. Clean or descale all removable filters and strainers.
  4. Examine Wash Tank Pressure Sensor/Level Sensor: Locate the water level sensor, which is often a pressure transducer or a float switch, typically mounted on or connected to the wash tank. Visually inspect its wiring for any signs of damage, corrosion, or loose connections. With power isolated, consult the service manual for the correct resistance or voltage values and test the pressure sensor accordingly. A faulty sensor will not accurately report the water level, causing the error. Replace if defective.
  5. Verify Control Board Output: If the water supply, fill valve, and pressure sensor all appear functional, the issue may originate from the main control board. Use a wiring diagram and multimeter to confirm that the control board is correctly commanding the fill valve and receiving the appropriate feedback signal from the level sensor. A faulty control board may not initiate the fill cycle or misinterpret sensor data.
  6. Clear Error and Test: After performing any repairs or checks, press and hold the power button for 5 seconds to clear the 017 error code. Allow the machine to drain (if applicable) and power off. Restart the dishwasher and carefully monitor the initial fill cycle to confirm proper operation and that the error does not return.

Common Questions:

Q: What does error code 017 mean for my HOBART LXn/LXGn dishwasher?

A: Error code 017 indicates that the wash tank has not filled to its minimum required water level, which prevents the machine from starting its cycle. This is a critical safety and operational safeguard to prevent heating elements from running dry.

Q: What are the most common causes of a HOBART LXn/LXGn failing to fill with water?

A: Typical causes include a closed or insufficient main water supply, a faulty water fill valve that isn’t opening, blockages in the water inlet hose or internal plumbing, or a malfunctioning wash tank pressure sensor that incorrectly reports a low water level despite adequate fill.

Q: How do I clear the 017 error code on my HOBART LXn/LXGn dishwasher?

A: To clear the 017 error, press and hold the power button on your dishwasher for approximately 5 seconds. The machine will then drain any existing water and power off. If the underlying issue persists, the error will reoccur upon restarting the unit.

When to call a technician

For this error, we recommend calling a certified technician. Do not continue operation or attempt repair yourself.

  • Equipment shows a critical or stop-operation fault.
  • You smell gas, burning, or see smoke or sparks.
  • Error returns after following the steps above.
  • You are not trained to work on this equipment.
  • Warranty or safety could be affected by DIY repair.

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