HOBART CUL-1
Commercial Undercounter Glass Dishwasher
Centerline Series by Hobart - Model CUL-1 (LOW-Temp)
Manufacturer: HOBART
Product Overview
The Hobart Centerline Series CUL-1 is a commercial undercounter glass dishwasher designed for efficient and reliable cleaning in moderate-demand environments. This LOW-Temp model features integrated chemical dispensing, convenient maintenance functions, and a compact design, making it an ideal solution for various food service operations.

Image: Front view of the Hobart Centerline Series CUL-1 commercial undercounter glass dishwasher.
Key Features
- Integrated Pump System: Equipped with detergent, rinse aid, and sanitizer pumps, along with a chemical sensing indicator for sanitizer, ensuring precise and consistent chemical application.
- Convenient Maintenance: Features delime notification and cycle, service diagnostics with error notifications, and a soft start function to simplify operation and minimize downtime.
- Low-Temperature Sanitizing: Utilizes low temperature chemical sanitizing combined with a fresh water rinse for effective sanitation and energy conservation.
- Efficient Performance: Capable of processing up to 24 racks per hour, suitable for consistent washing in moderate-demand settings.
- Compact Design: Dimensions of 22-11/16"W x 24"D x 32-5/16"H allow for space-efficient undercounter installation.
- Included Accessories: Ships with one (1) peg rack and one (1) combo rack for immediate usability.
Setup and Installation
The CUL-1 dishwasher is designed for undercounter installation. Proper setup is crucial for optimal performance and longevity.
Unpacking and Placement:
- Carefully remove the dishwasher from its packaging. Inspect for any shipping damage.
- Place the unit in its intended undercounter location, ensuring adequate clearance for ventilation and service access.
- Verify that the installation surface is level and capable of supporting the dishwasher's weight when filled.
Connections:
- Water Supply: Connect the dishwasher to a potable water supply as per local plumbing codes. Ensure proper water pressure and temperature.
- Drainage: Connect the drain hose to an appropriate drain system, ensuring proper slope for efficient water removal.
- Electrical: Connect the unit to a dedicated 120 Volt electrical circuit as specified in the electrical requirements section of the full manual. Professional installation is recommended.
- Chemical Lines: Connect the detergent, rinse aid, and sanitizer chemical lines to their respective containers.

Image: The CUL-1 dishwasher installed under a counter, with a rack of plates inside.
Operating Instructions
Follow these steps for effective and safe operation of your Hobart CUL-1 dishwasher.
Daily Start-Up:
- Ensure all chemical containers (detergent, rinse aid, sanitizer) are adequately filled.
- Check that the spray arms are clear of debris and rotate freely.
- Close the dishwasher door securely.
- Press the power button to turn on the unit.
Loading Dishes:
Proper loading maximizes cleaning efficiency and prevents damage to dishes and the machine.
- Scrape off large food particles before loading.
- Place glasses and cups upside down in the provided racks.
- Arrange plates and bowls so water can reach all surfaces. Avoid overcrowding.
- Use the included peg rack for glasses and the combo rack for various dish types.

Image: Interior view of the dishwasher showing a rack filled with glasses.

Image: Interior view of the dishwasher demonstrating loading of various kitchen items.

Image: Top view of the dishwasher with a rack of glasses placed on its surface, indicating capacity.
Selecting a Cycle:
The CUL-1 offers multiple cycle options to suit different cleaning needs:
- Normal Cycle: For standard dishwashing needs.
- Intensive Cycle: For heavily soiled dishes or when a more thorough wash is required.
Refer to the control panel for cycle selection. The dishwasher is designed for quick cycles, with some cycles completing in as little as 2 minutes.

Image: Close-up view of the dishwasher's control panel with various buttons and indicators.

Image: Graphic indicating a 2-minute wash cycle for quick turnaround.
Sanitizing:
This model uses low-temperature chemical sanitizing with a fresh water rinse. Ensure the sanitizer chemical reservoir is always adequately supplied for proper sanitation.
Maintenance
Regular maintenance ensures the longevity and efficient operation of your dishwasher.
Daily Cleaning:
- Wipe down the exterior with a damp cloth.
- Clean the interior, including the door gasket and spray arms, to remove any food residue.
- Check and clean the self-cleaning filter as needed to prevent clogs and ensure optimal wash performance.

Image: A hand demonstrating the removal or adjustment of a spray arm for cleaning.
Delime Notification and Cycle:
The dishwasher is equipped with a delime notification system. When prompted, initiate the delime cycle according to the instructions in the full product manual to remove mineral buildup and maintain efficiency.
Service Diagnostics:
The unit features service diagnostics with error notifications. If an error code appears on the display, consult the troubleshooting section or contact authorized service personnel.
Troubleshooting
This section provides solutions to common operational issues. For more complex problems, refer to the comprehensive service manual or contact customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Dishwasher not starting | No power; Door not closed properly; Error code displayed. | Check power supply; Ensure door is latched; Consult error code in manual. |
| Dishes not clean | Improper loading; Clogged spray arms; Low chemical levels; Filter dirty. | Reload dishes correctly; Clean spray arms; Refill chemicals; Clean filter. |
| Excessive noise during operation | Foreign object in pump; Unit not level. | Inspect pump area (power off); Adjust leveling feet. |
| Sanitizer indicator light on | Low sanitizer level. | Refill sanitizer container. |
Specifications
Detailed technical specifications for the Hobart Centerline Series CUL-1 dishwasher.
| Attribute | Detail |
|---|---|
| Model Name | CUL-1 |
| Style | LOW-Temp |
| Voltage | 120 Volts |
| Product Dimensions (W x D x H) | 22.69" x 24" x 32.31" |
| Water Consumption | 0.84 Gallons per rack |
| Racks Per Hour | Up to 24 |
| Cycle Options | Normal, Intensive |
| Installation Type | Under Counter |
| Special Feature | Self-Cleaning Filter |
| Included Components | Dishwasher, 1 Peg Rack, 1 Combo Rack |
| Finish Type | Stainless |
| Color | Satin |
Warranty and Support
For detailed warranty information, please refer to the warranty card included with your product or visit the official Hobart website. For technical support, service requests, or to order replacement parts, please contact Hobart customer service or an authorized service provider.
You can typically find contact information on the manufacturer's website or in the documentation provided with your purchase.
Related Documents - CUL-1
![]() |
Hobart Centerline CUL Chemical Sanitizing Undercounter Dishwasher Spec Sheet Detailed specifications and features for the Hobart Centerline CUL chemical sanitizing undercounter dishwasher. Includes NSF and ENERGY STAR certifications, performance data, and connection details. |
![]() |
Hobart Centerline CDH/CDL CUH/CUL Operation and Error Card Quick reference guide for Hobart Centerline CDH/CDL and CUH/CUL commercial dishwashers, detailing button functions, wash programs, and troubleshooting error codes. |
![]() |
Hobart Centerline Dishwasher Operation and Error Card Comprehensive operation and error code guide for Hobart Centerline CDH/CDL and CUH/CUL commercial dishwashers, detailing button functions, wash programs, and troubleshooting steps for common error codes. |
![]() |
CENTERLINE™ Commercial Dishwasher: Installation and Operation Manual This manual provides detailed instructions for the installation, operation, setup, cleaning, maintenance, and troubleshooting of the CENTERLINE™ Commercial Dishwasher by HOBART. It covers safety precautions, technical specifications, and error code explanations for models CUH and CUL. |
![]() |
Hobart Centerline & Ecoline Commercial Dishwasher Installation and Operation Manual Comprehensive installation and operation manual for Hobart Centerline (CUH, CUL) and Ecoline (EUH, EUL) commercial dishwashers. Includes model numbers ML-130363, ML-130364, ML-130377, ML-130378, technical specifications, safety guidelines, setup procedures, and troubleshooting. |
![]() |
CENTERLINE™ CD Commercial Dishwasher: Installation and Operation Manual Official installation and operation manual for the CENTERLINE™ CD Commercial Dishwasher series by Hobart. Covers models CDH (ML-130374) and CDL (ML-130375), detailing setup, safety, operation, troubleshooting, and maintenance. |
Ask a question about this manual
Ask about setup, troubleshooting, compatibility, parts, safety, or missing instructions. Manuals+ will review the question and use this page’s manual context to help answer it.





