Hobart Dishwasher Error Codes And How To Fix Them

 

Hobart dishwashers are essential in any commercial kitchen, valued for their durability and efficient performance. These machines rely on various Hobart dishwasher parts to ensure smooth operation, but even the best equipment can encounter issues. Understanding common error codes and knowing how to address them can help you quickly identify and resolve problems. In this guide, we’ll explore some of the most frequent error codes for Hobart dishwashers, explain what they mean, and provide solutions to fix them, keeping your machine running smoothly and minimizing costly downtime.

Common Hobart Dishwasher Error Codes and How to Fix Them

Here are common Hobart dishwasher error codes and how to fix them.

1. AL Error Code: Blocked Drain Hose or Drain System Issue

The AL error code is usually a drainage problem, which means that the wastewater cannot leave the dishwasher. This may cause standing water inside the unit, which could cause odors and reduce cleaning effectiveness.

Fix:

• Check the drain hose to make sure it is not bent, twisted, or obstructed. If necessary, detach it and rinse it with warm water.

• Drain Pump Examination: A clogged or malfunctioning drain pump can prevent proper drainage. Listen for unusual noises or failure to operate during the drain cycle. If necessary, clean or replace the pump.

• Internal Drain System Check: Remove any debris from filters and inspect the drain path to ensure proper water flow.

2.AL2 Error Code: Door Fault 

This error occurs when the dishwasher detects that the door is not closed properly and this triggers a safety mechanism that prevents the dishwasher from operating.

Fix:

• Lock the Door: Make sure the lock is properly locked. The door may not close all the way if it is misaligned.

• Check the Safety End Switch: This switch may not be able to sense that the door is closed and needs to be replaced.

• Check the Door Gasket: A worn out or a damaged gasket may not close properly and this may trigger an error. Replace if needed.

3.AL3 Error Code: Detergent and Rinse Aid Containers Issue

This error is caused when the dishwasher detects a problem with the detergent or rinse aid supply, which may be due to the containers being empty or the dispensers being faulty.

Fix:

• Refill Detergent and Rinse Aid: Both of these can cause the error if they are low; check that they are full.

• Check the Dispensers: They may be blocked or have some residue that hinders the release. Wash and remove any obstructions.

• Check the Sensors: If the detergent levels are not the problem, then it may be necessary to replace the sensors.

4.E001 Error Code: System Failure and PCB Connection Issue

A system failure that occurred due to the lack of communication between the printed circuit boards (PCBs) and the dishwasher as a whole.

Fix:

• Power Cycle the Unit: Switch off the dishwasher and then wait for a few minutes before turning it back on again.

• Check PCB Connections: Poor connections may cause a break in the flow of signals. Open the panel and tighten all connections that you find.

• Consult a Professional: If the connections look good but the problem is still there, then the PCB might require repair or replacement.

5. FIL Error Code: Shut-off Valve or Fill System Defect

Shows a fault in the water supply system, which may be closed shut-off valve or a faulty fill valve, which makes the dishwasher to take more than the normal time to fill.

Fix:

• Check the Shut-off Valve: Make sure the shut-off valve is completely open.

• Check the Fill Valve: Sometimes it may be blocked or damaged and may not allow water to enter. If necessary, clean or replace the valve.

• Check the Plumbing: A low water supply issue can be caused by external plumbing problems.

6.F01 Error Code: Defective Temperature Probe in the Rinse Booster

A faulty rinse booster temperature probe may result in incorrect rinse temperatures which may compromise sanitation.

Fix:

• Check the Probe: Replace the probe if it is rusted or damaged.

• Test Functionality with a Multimeter: If the readings are off, then it needs to be replaced.

7.F02 Error Code: Defective Temperature Probe in the Tank

A faulty tank temperature probe can result in inadequate heating and poor wash cycles.

Fix:

• Clean or Replace the Probe: The probe may become dirty or have a buildup of material on it which can hinder accuracy.

• Secure Wiring: Loose connections can cause problems with the readings.

8.F04 Error Code: Drainage Failure Due to Pump or Filter Issue

This error is associated with poor drainage, which can be as a result of a blocked filter or a faulty drain pump.

Fix:

• Check the Drain Pump: Check for any blockage or damage that may hinder proper functioning.

• Clean the Filter: The filter may get blocked and this will hinder the free flow of water.

9.F06 Error Code: General Temperature Fault

The fill booster may not heat properly due to a faulty temperature sensor.

Fix:

• Check the Temperature Sensor: Check for any signs of physical damage.

• Multimeter Test: The sensor has to be replaced if the readings are inaccurate.

10. HE1 Error Code: Defective Rinse Booster Heating

This error occurs when the rinse booster heating element is faulty and the rinse water does not heat up to the required temperature.

Fix:

• Examine the Heating Element for burn marks or wear indicators.

• Continuity Test: Check continuity by using a multimeter. If faulty, replace the heating element.

By familiarizing yourself with common error codes and understanding troubleshooting steps, you can maintain the performance of your Hobart dishwasher. Regular maintenance and timely repairs, including checking critical parts, will ensure efficient operation and minimize costly downtime. While some fixes can be handled by kitchen staff, more complex issues may require a professional technician. 

Written by Allen Rode for PartsFe, your trusted source for a variety of high-quality commercial restaurant equipment, including commercial dishwasher parts and convection oven parts.