UF SERIES WATER FILTRATION SYSTEM

TROUBLESHOOTING

Problem

Possible Cause

Corrective Action

Unit does not have power.

The power cord is not correctly plugged

Plug power cord in correctly.

 

in.

 

The Control Display is blank.

The power cord is not correctly plugged

Plug power cord in correctly.

 

in.

 

 

Control Board is inoperable.

Contact your maintenance person or Authorized

 

 

Service agency.

 

Transformer is inoperable.

 

 

No water comes out of the filter

Inlet Valve closed

Open the Inlet Valve

system

 

 

Inlet Strainer is plugged

Clean/replace Inlet Strainer

 

 

End of the capillaries plugged

Clean/replace Filter Cartridge

Low water flow/pressure out of

See above.

See above.

system

 

 

The system may be in a flush cycle.

Wait for the flush cycle to end.

 

 

Flushing program not set correctly for

Decrease the flush interval and increase the

 

water conditions.

flush duration (refer to the Operation section of

 

 

this manual).

 

Drain Valve is stuck open.

Replace/rebuild the Drain Valve.

 

The inlet water pressure is too low.

Boost the inlet water pressure/replace pipes.

Water tastes bad.

Storage/shipping solution not completely

Flush system for a longer period of time.

 

flushed out of system.

 

 

Biological growth in pipes.

Sanitize plumbing.

 

Water conditions changed.

Consider installing taste and odor filtration.

 

Broken capillary in Filter Cartridge.

Replace Filter Cartridge.

Flush runs continuously.

Drain Valve stuck open.

Replace/rebuild the Drain Valve.

 

Controller sending continuous signal to

Replace the controller.

 

valve.

 

Flush runs too long.

Program duration set too long.

Re-program the unit to flush for a shorter dura-

 

 

tion of time.

Flush occurs at time of high water

The Flush Interval is set to interfere with

Change Flush Interval/reprogram time. Unplug

usage.

water use.

unit and plug in at a time of lower water usage.

Water splashes at drain during

Drain line not positioned properly.

Reposition the end of the drain line.

flush.

 

 

Water leaks at the ends of the

Cartridge end connections are not tight

Tighten with strap wrench if necessary.

Filter Cartridge after changing

enough.

 

cartridges.

 

 

O-rings not lubricated.

Lubricate O-rings with food-grade lubricant.

 

 

O-rings are split, cut, or twisted

Replace O-rings.

Water leaks from Permeate port.

Permeate port is not tight enough

Tighten, with strap wrench if necessary.

 

O-ring not lubricated.

Lubricate O-ring with food-grade lubricant.

 

O-ring split, cut, or twisted.

Replace O-ring.

Water leaks from system fitting or

Fitting broken or loose.

Retighten or replace the fitting.

connection.

 

 

Not enough pipe thread sealant used.

Redo the fitting with the proper amount of seal-

 

 

 

ant.

P/N 1010827 Rev. D 04/06

15

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Antunes, AJ UF-420/440 owner manual Troubleshooting, Problem Possible Cause Corrective Action
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UF-420/440 specifications

The AJ UF-420/440 series by Antunes represents cutting-edge innovation in the world of foodservice equipment, designed to enhance cooking efficiency and food quality. Renowned for its versatility and reliability, this model is primarily engineered for food establishments looking to deliver high-quality meals with streamlined workflows.

One of the standout features of the AJ UF-420/440 is its advanced cooking technology, which employs a combination of infrared and convection heating. This dual heating mechanism ensures that food is cooked evenly and efficiently, reducing cooking times while maintaining superior flavor and texture. The precise temperature controls allow operators to customize cooking settings according to their specific needs, making it an ideal solution for varied menu items.

With an ergonomic design, the AJ UF-420/440 is user-friendly, enabling staff to operate the unit with minimal training. The intuitive digital control panel features easy-to-read displays and programmable settings, simplifying the process of switching between different cooking functions. Additionally, the compact footprint of this model makes it suitable for kitchens of all sizes, ensuring it can fit seamlessly into any workspace.

The AJ UF-420/440 also excels in energy efficiency, helping operators reduce their energy consumption and cut costs. The heat recovery system ensures that the unit reaches optimal cooking temperatures quickly while minimizing heat loss during operation. This efficiency not only saves time but also contributes to a reduction in the environmental impact of foodservice operations.

Furthermore, the build quality of the AJ UF-420/440 is exceptional, constructed with durable stainless steel that resists corrosion and ensures longevity. This robust design is essential for high-volume kitchens where reliability is paramount. The unit is also relatively easy to clean, with smooth surfaces and removable components that help maintain hygiene standards.

In summary, Antunes' AJ UF-420/440 series merges innovative cooking technology with user-friendly operation and energy efficiency. Its thoughtful design and advanced features make it a valuable addition to any commercial kitchen, ensuring that food operators can consistently produce high-quality dishes while enhancing overall productivity. This model stands as a testament to Antunes' commitment to excellence in foodservice solutions.
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