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Hobart AM900 - User Manual

Hobart AM900
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REV. 29.09.2008
Starting from Serial No.:
8658 0001
AM900
GLASS AND DISHWASHERS
INSTALLATION AND
OPERATION INSTRUCTIONS

Questions and Answers

  • S
    Stephanie ChristensenJul 27, 2025
    How to prevent glass breakages in Hobart AM900?
    • S
      Sharon DawsonJul 27, 2025
      To prevent glass breakages in your Hobart Dishwasher, make sure you are using appropriate dish or glass racks.
  • M
    Mr. Matthew CarrollAug 1, 2025
    Why are glasses cloudy after washing in my Hobart AM900?
    • D
      Diana BellAug 1, 2025
      If glasses are totally or partially cloudy after washing in your Hobart Dishwasher, it could be due to glass corrosion, where the surface of the glasses is rough and porous. This is not caused by a malfunction of the machine, so you should replace the glasses.
  • K
    kirbymelissaAug 7, 2025
    Why don't dishes dry properly in my Hobart AM900 Dishwasher?
    • D
      dgoldenAug 7, 2025
      If dishes or glasses aren't drying properly in your Hobart Dishwasher, the rinse aid concentration might be too low, so increase it. If dishes are still greasy, the detergent concentration might be too low or not appropriate, so increase the concentration or choose a stronger detergent. Also, make sure to drain soiled water and refill the machine, checking the pre-scrapping procedure. Ensure you're using appropriate racks that allow water to drain away from cavities. Finally, take out dishes as soon as the cycle is completed to enable them to dry.
  • S
    Sandra ReedAug 13, 2025
    What to do if there are stripes and stains on dishes from Hobart AM900 Dishwasher?
    • S
      Sarah ChanAug 13, 2025
      If you notice stripes and stains on dishes or glasses from your Hobart Dishwasher, start by checking the rinse aid concentration; it might be too high, so reduce the quantity. Also, if the rinse aid concentration is insufficient it can cause stains, so increase the quantity. Hard water or high mineral content can also be a factor, so check your water quality with your local water authority. Ideal degree of hardness is 4° Clark. Ideal conductivity value for glasses is max. 150 µS/cm and for dishes max. 400 µS/cm. If you have a machine with a softener, ensure you're using only granular regeneration salt. Lastly, ensure you are using appropriate racks.
  • M
    mooreedwardAug 19, 2025
    Why does my Hobart AM900 stop during the wash program?
    • G
      Gregory MaxwellAug 19, 2025
      If your Hobart Dishwasher suddenly stops during a wash program, it could be due to the machine being connected to a 'maximum power supply unit' that's cutting out, or it's interlocked with another energy consumer unit. In this case, connect the machine separately and call an electrician. Another possibility is a blown site fuse, so check the site fuses.

Summary

Important Safety and Usage Notes

Usage Regulations

Machine intended for washing ware like plates, cups, glasses, cutlery, trays.

General Safety Precautions

Key safety instructions, including 'Never hose down the machine.'

Liability and Warranty Information

Warranty affected by unauthorized technicians, parts, or alterations.

Installation Procedures

Location and Clearance Requirements

Details on rear wall clearance, corner installation clearance, and leveling.

Converting for Corner Operation

Adjusting guide rails to suit different operation directions.

Electrical Connection

Requirements for connection by authorized technician, compliance with codes.

Water Connection

Requirements for connection by authorized technician, water quality, pressure.

Drain Connection

Max height and hose placement for drain connection.

Connecting Detergent Dispenser

Powder or Solid Dispenser Setup

Procedures for connecting a detergent dispenser, including tank draining.

Conductivity Probe Installation

Installation guidelines for the conductivity probe.

Machine Controls and Indicators

Primary Control Buttons

Functionality of ON/OFF, Program, and Stop buttons for operation.

Display Screens

Shows temperature indications for Wash and Rinse cycles.

Status Indicators

Signals for salt requirement and machine faults (Service indicator).

Initial Start-Up Procedures

Detergent and Rinse Aid Handling

Instructions for using detergent and rinse aid, including type and handling.

Priming Suction Hoses

Manual procedure for priming detergent and rinse aid suction hoses.

Detergent and Rinse Aid Priming

Detergent Suction Hose Priming

Priming the detergent suction hose using the ON/OFF button.

Rinse Aid Suction Hose Priming

Priming the rinse aid suction hose using Program and ON/OFF buttons.

Termination of Hose Priming

How to terminate the hose priming procedure.

Optional Softener Filling

Filling the softener with regeneration salt and potable water.

Machine Operation

Preparation for Wash Cycle

Steps before starting a wash cycle, checking components and supplies.

Running a Wash Cycle

Loading racks, starting the wash cycle, and unloading.

Program Selection

How to select and change wash programs (P01, P02, P03).

Switch-Off and Cleaning

Machine Switch-Off Procedure

Steps to properly shut down the machine.

Daily Cleaning Tasks

Daily cleaning for the machine interior and parts.

Weekly Cleaning Tasks

Weekly cleaning tasks, including wash and rinse arms.

Temperature Preview

Displaying Wash and Rinse Temperatures

How to display current wash and rinse temperatures.

Fault Diagnosis and Error Codes

Error Code Reference

Table listing error codes, possible causes, and measures.

Service Indicator Faults

Explanation of service indicator and associated faults (FIL, SIE, UL, F01-F04).

Other Indication Meanings

Explains moving light point indications, like softener regeneration.

Settings and Counter Values

Adjusting Detergent Dosage

How to adjust detergent dosage time.

Adjusting Rinse Aid Dosage

How to adjust rinse aid dosage time.

Adjusting Water Hardness

Adjusting the softener based on local water hardness.

Cycle Counter

Viewing the total number of wash cycles performed.

Water Consumption Counter

Viewing the total water consumed by the machine.

External Water Treatment Counter

Displays remaining capacity of external water treatment.

Exiting Settings Mode

How to exit setting modes and save changes.

Frost Prevention

Procedure for Frost Prevention

Steps to take for frost prevention during pauses.

Maintenance Advice

Service Contract Recommendation

Recommendation for a service contract with the local Service Office.

Troubleshooting Common Issues

Poor Wash Results

Issues like dishes not clean or not drying properly.

Drying Performance Issues

Specific causes and remedies for drying issues.

Wash Result Problems

Stripes, stains, cloudiness, breakages, machine stopping.

Other Malfunctions

Specific issues like cloudy glasses, glass breakages, machine stopping.

Hobart AM900 Specifications

General IconGeneral
ModelAM900
CategoryDishwasher
Water Usage per Rack0.74 gallons
Phase3
Motor Horsepower1 hp
TypeDoor Type
Voltage208-240V

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