Hobart 00-289121 Float Switch and Probe Assembly Low Water

A float switch and probe assembly designed to detect low water conditions in commercial dishwasher equipment. This sensor assembly includes a float mechanism and an O-ring configuration that monitors water levels during wash operation. The component functions as part of the dishwasher water sensing system, allowing the equipment to respond when water levels drop below the required operating range. This low water sensor assembly is commonly installed in commercial dishwashers and warewashing equipment used in restaurants, institutional kitchens, cafeterias, and foodservice cleaning operations. A worn or malfunctioning float switch may cause incorrect water level readings, interrupted wash cycles, or operational shutdown conditions. Replacing the assembly may restore proper water sensing and support normal dishwasher operation during high-volume cleaning applications.

Equipment Compatibility:
Key applications for this float switch and probe assembly include commercial dishwashers, warewashing systems, and conveyor dish machines used in foodservice cleaning environments. This Float Switch and Probe Assembly 00-289121 is compatible with commercial dishwasher equipment from leading brands such as Hobart and related commercial warewashing equipment, and more, where low water sensing and water level monitoring are required for normal operation.

Brand Compatibility:
Compatible as a replacement for multiple part numbers used in commercial dishwasher equipment from Hobart. Refer to the “Replaces Parts” section for complete cross-reference and compatibility details.

Product Specifications:
Manufacturer: Hobart
Sku: 00-289121
Product Type: Float Switch and Probe Assembly
Application: Low Water Sensor
Includes: Float Sensor with O-Ring
Float Only Part Number: 282324
O-Ring Part Number: 321530
Equipment Type: Commercial Dishwasher

Key Features:

• Float switch and probe assembly designed for low water sensing applications
• Detects water level conditions during commercial dishwasher operation
• Includes float sensor assembly with matching O-ring configuration
• Replacement installation restores damaged or malfunctioning water sensing components
• Common in commercial warewashing and dishwasher equipment
• Compatible with select Hobart commercial cleaning system applications

“After replacing the float assembly, the dishwasher returned to normal water level detection during operation.”

Step1: Disconnect power and water supply before servicing.

Step2: Remove the tank panel to access the old float switch.

Step3: Disconnect wiring and carefully remove the old probe assembly.

Step4: Install the new float switch and probe in the same position.

Step5: Reconnect wiring securely and ensure proper alignment.

Step6: Restore power and water, then test for correct low-water detection.

• What maintenance is required for the Hobart 00-289121 Float Switch and Probe Assembly?

  Regularly inspect the float and probe for buildup, corrosion, or physical damage. Ensure the float moves freely and the probe is properly positioned. Check electrical connections for tightness and test the assembly to confirm accurate low-water detection.

• What are the common issues with the Hobart 00-289121 Float Switch and Probe Assembly?

  • False low-water alarms
  • Probe sticking due to mineral buildup
  • Electrical connection failures
  • Intermittent or unresponsive switch activation.

• What are common issues with the Hobart 00-289121 Float Switch and Probe Assembly?

  • Float sticking or not moving freely.
  • Probe misalignment affecting detection.
  • Low-water signal failing to trigger.
  • Incorrect water level reading.