Hobart Commercial Dishwasher Troubleshooting Tips

Posted: January 19, 2024

Have you ever found yourself grappling with issues in your Hobart commercial dishwasher, disrupting the seamless flow of your kitchen operations? Fear not, as this article aims to be your troubleshooting guide, offering valuable insights and practical tips to tackle common challenges that may arise with your Hobart commercial dishwasher. Whether you're facing issues with cleanliness, drainage, or functionality, we've got you covered. Let us explore effective solutions to keep your Hobart dishwasher running smoothly and your kitchen bustling with efficiency.

Table of contents:

What are the common problems with Hobart dishwashers?
How to troubleshoot Hobart commercial dishwashers?

  • Hobart dishwasher not turning on
  • Hobart dishwasher not filling water
  • Hobart dishwasher not draining properly
  • Dishes aren't clean or spotting appears on silverware and glasses
  • Dishes and other objects damaged
  • Readings of low temperatures
  • Inadequate chemical feeding

Hobart dishwasher maintenance tips

What are the common problems with Hobart dishwashers?

Hobart dishwashers are widely recognized for their efficiency and durability, but like any appliance, they may encounter common issues over time. 

  1. Water drainage issues: One prevalent problem with Hobart dishwashers is related to water drainage. Hobart dishwasher parts such as clogged filters or blocked drain hoses can impede proper water flow, leading to ineffective cleaning and potential damage to the dishwasher. Regular inspection and maintenance of these components are crucial to ensuring smooth water drainage.
  2. Detergent dispenser malfunctions: Issues with the detergent dispenser can significantly impact the dishwasher's cleaning performance. Malfunctions in this component may result in inadequate soap distribution, leading to subpar results. Users should regularly check and troubleshoot the detergent dispenser to ensure it operates seamlessly.
  3. Spray arm problems: Dishwashers not spraying water are often caused by problems with the spray arms. These essential components may become clogged or malfunction, leading to uneven cleaning and residue buildup. Regular inspection, cleaning, and potential replacement of spray arms can help maintain optimal dishwasher performance.
  4. Electronic control panel challenges: Electronic control panel issues can disrupt the normal operation of Hobart dishwashers. Faulty sensors, circuit problems, or display malfunctions may hinder the dishwasher's functionality. Users facing control panel issues should seek professional assistance to address and rectify the problem.
  5. Leakage concerns: Leakage can be a common problem in Hobart dishwashers, often caused by damaged Hobart parts such as door gaskets or issues with the water inlet valve. Addressing leaks promptly is crucial to prevent water damage and maintain the dishwasher's efficiency. Inspecting and replacing faulty components on a regular basis can help mitigate leakage concerns such as no water in dishwasher.

By addressing these common problems through regular maintenance and timely repairs, users can ensure the longevity and optimal functioning of their Hobart dishwashers.

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How to troubleshoot Hobart commercial dishwashers?

Hobart commercial dishwashers, renowned for their reliability, may encounter occasional hiccups during daily use. Below, we address common issues and provide solutions to ensure your dishwasher maintains optimal performance.

Hobart dishwasher not turning on

If your Hobart dishwasher fails to turn on, consider the following solutions:

  • Unit turned off: If your Hobart dishwasher not working, start by ensuring that the unit is powered on. Sometimes, users may unintentionally turn it off, so simply turning it on might resolve the issue.
  • Power cord issues: Check the power cord for any signs of damage or if it has been unplugged. Frayed cords or disconnections could be the culprit. If identified, consider replacing the power cord.
  • Blown circuit breaker: A blown circuit breaker can prevent the dishwasher from turning on. Locate the circuit breaker for the dishwasher and reset it to see if this resolves the issue.
  • "Door Open" code: If the display shows a "door open" code, try opening and closing the dishwasher door. If the code persists, it might indicate a sensor or door mechanism problem, requiring assistance from an authorized technician.
  • Associated Hobart dishwasher error codes: “DOOR OPEN” or “dr” “op”

Explore our dishwasher buying guide for expert insights on choosing the right commercial dishwasher model, ensuring optimal performance and longevity in your kitchen.

Know more about The Ultimate Guide To Buying A Commercial Dishwasher For Restaurant

Hobart dishwasher not filling water

Issues with water filling require careful examination. Here’s how to fix commercial dishwasher:

  • Low water pressure: Insufficient water pressure can impede proper filling. Check for a clogged hose strainer and ensure that the facility's water pressure meets the machine's requirements. If the main water supply valves are not working, they may need replacement.
  • Machine cleaning: Scale and lime buildup inside the dishwasher can lead to various issues, including improper filling. Regular cleaning, following the instructions in the Hobart dishwasher manual, can prevent these problems.
  • Opened drain valve: If the unit won't fill adequately, try turning the machine off and on. This action can clear any obstructions in the drain valve. Follow the recommended steps, opening and closing the door during the process.
  • Leaking fill solenoid valve: Check for leaks in the fill solenoid valve, which could lead to overfilling. If water continues to flow when the dishwasher is powered off, seek assistance from an authorized technician.
  • Unleveled machine: A dishwasher that isn't level might overfill. Have the unit leveled by a professional to ensure proper operation.
  • Associated Hobart dishwasher error codes: “E0,” “E2,” “E3,” “E4” on LX18 and LX30 models; “DR1 PRBLM,” “FILL1 PRBLM,” FILL2 PRBLM” or FILL3 PRBLM” on LX40 models

Hobart dishwasher not draining properly

If the dishwasher isn't draining properly, check for restrictions in the drain pipes. Examine the drain line for kinks or blockages. If the problem persists, power off the machine, wait a few seconds, and power it back on. If draining issues persist, contact an authorized technician for assistance.

For additional insights into maintaining your commercial dishwasher, explore our detailed guide on commercial dishwasher maintenance tips for proactive care and optimal performance.

Dishes aren't clean or spotting appears on silverware and glasses

Dirty or spotted dishes may result from various issues:

  • Obstructed wash arms: Dirty or obstructed wash arms can result in inadequate cleaning. Remove any blockages and clean the wash arms according to the manual's instructions.
  • Clogged strainers: Blocked strainers can limit water supply to the pump, affecting cleaning performance. Unclog the strainers following the cleaning instructions in the owner's manual.
  • Low water temperature: Ensure that the dishwasher maintains a water temperature above 120°F for chemical sanitizing models and 150°F for other models. Low water temperatures can impact the effectiveness of the cleaning process.
  • Improper rack loading: Improperly loaded racks can leave dishes, glasses, and silverware dirty. Refer to the owner's manual for proper loading instructions.
  • Low water pressure or insufficient filling: Check for a clogged hose strainer and ensure that the facility's water pressure meets the dishwasher's requirements. In some models, adjusting the cycle timer may be necessary.
  • Hard water: Install a water softener or use a rinse agent if the facility's water is hard. Hard water can hinder cleaning performance and prevent the dishwasher from filling correctly.
  • Detergent dispenser issues: A clogged detergent dispenser can lead to ineffective cleaning. Clean the dispenser according to the instructions in the dishwasher's manual.

Dishes and other objects damaged

Different types of damage require specific considerations:

  • Etching: Etching can result from a combination of high water temperatures, soft water, high-alkaline cleaning solutions, or soft glass.
  • Chipping: Incorrectly loading the dishwasher can cause items to come in contact with each other, leading to chips and cracks.
  • Tarnishing: Avoid washing silver and pewter dishes in dishwashers that use chemical sanitizers.
  • Pitting: Stainless steel can pit when in contact with certain foods like vinegar, salt, and fruit juice.
  • Marks and Staining: Black and gray marks could come from items being rubbed with aluminum, while brown and dark stains could result from high iron in the water.
  • Ware and Rusting: Certain plastic and wooden items may wear out from high temperatures. Check if they are dishwasher safe. Rusting on cast-iron items may also occur if they are not dishwasher safe.

Readings of low temperatures

For correct water temperature, examine potential causes:

Rapid cycle use: When the incoming water temperature is low and the cycle use rate is high, it may lead to inadequate cleaning. Adjust the machine's settings accordingly.

Low temperature from supply: Ensure that the dishwasher's water temperature is above 120°F for chemical sanitizing models and 150°F for other models. Adjust the settings if necessary.

Heavy ware loads: Overloaded racks can cause the wash water to cool down, affecting cleaning performance. Follow the loading instructions in the owner's manual.

Inadequate chemical feeding

Here are some reasons why chemicals might not be feeding into your machine:

  • Kinked tubes: Check for smooth bends and unkink any tangled tubing that feeds chemicals into the dishwasher.
  • Air leaks: Inspect feeder hose connections for air leaks. Tighten connections to resolve this issue.
  • Low chemicals: Ensure an adequate supply of chemicals in the dishwasher for proper cleaning. Regularly check and replenish chemical levels as needed.

Now that you know about Hobart dishwasher troubleshooting tips. Let us find out how to maintain them. 

Know more about 9 Essential Commercial Dishwasher Maintenance Tips: Ultimate Guide

Hobart dishwasher maintenance tips

Maintaining your Hobart dishwasher is essential to ensure its longevity and optimal performance. Regular upkeep can prevent common issues and enhance the efficiency of your commercial dishwasher. Here are some valuable maintenance tips to keep your Hobart dishwasher in top condition:

  1. Regular cleaning:
  • Clean the interior and exterior surfaces of the dishwasher regularly using mild detergent and a soft cloth.
  • Pay special attention to removing any food debris, mineral deposits, or detergent residue from wash arms, filters, and other critical components.
  1. Check and clean filters:
  • Hobart dishwashers are equipped with filters to trap debris. Check these filters regularly and clean or replace them as needed.
  • A clogged filter can hinder water flow, affecting the dishwasher's cleaning performance.
  1. Inspect spray arms:
  • Examine the spray arms for clogs or obstructions. Clean them thoroughly to ensure a consistent and even water spray during the washing cycle.
  • Ensure that the spray arm nozzles are free from debris to maintain optimal cleaning efficiency.
  1. Examine door gaskets:
  • Inspect the door gaskets for any signs of wear, damage, or buildup. Clean them regularly and replace if necessary to maintain a proper seal.
  • A tight door seal is crucial to prevent water leaks and maintain energy efficiency.
  1. Maintain water pressure:

Check and maintain the water pressure in your facility to ensure it meets the dishwasher's requirements. Low water pressure can impact the cleaning effectiveness.

  1. Clean and delime:
  • Scale and lime buildup can occur over time. Follow the manufacturer's guidelines to clean and delime the dishwasher, particularly in areas with hard water.
  • Regular cleaning prevents the accumulation of mineral deposits that can affect various components.
  1. Inspect hoses and connections:

Regularly inspect hoses and connections for any signs of leaks, kinks, or damage. Replace damaged parts promptly to prevent water damage and maintain the dishwasher's efficiency.

  1. Monitor detergent usage:
  • Use the recommended dishwasher detergent and follow the manufacturer's guidelines for proper usage.
  • Avoid overloading the detergent dispenser and ensure it is clean to prevent clogs.
  1. Temperature calibration:
  • Periodically check and calibrate the dishwasher's temperature settings. This is crucial for achieving optimal cleaning and sanitizing results.
  • Ensure that the water temperature meets the requirements specified by the dishwasher model.
  1. Professional inspection:
  • Schedule regular professional inspections and maintenance by authorized technicians. They can identify and address potential issues before they escalate.
  • Professional maintenance helps extend the lifespan of your Hobart dishwasher and ensures compliance with safety and sanitation standards.

By incorporating these maintenance tips into your routine, you can maximize the efficiency and lifespan of your Hobart dishwasher, minimizing downtime and ensuring consistent, high-quality results. Regular care and attention to key components will contribute to the reliable operation of your commercial dishwasher for years to come.


Why is my dishwasher not starting the wash cycle?

Check for a possible power issue, including verifying that the unit is turned on, the power cord is plugged in, and there are no blown fuses or tripped circuit breakers.

What is the life of a commercial dishwasher?

The lifespan of a commercial dishwasher varies, but with proper maintenance and care, it can typically last between 10 to 15 years, depending on usage, model, and manufacturer specifications.

What is the probe error on a Hobart dishwasher?

The "probe error" on a Hobart dishwasher suggests a malfunction or issue with the temperature-sensing probe, affecting the appliance's ability to monitor and regulate water temperature during operation.

How do I know if my dishwasher drain hose is clogged?

If your dishwasher drain hose is clogged, you may notice water pooling at the bottom of the dishwasher after a cycle, slow drainage, or unpleasant odors emanating from the appliance.