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Dux Endurance 20 - User Manual

Dux Endurance 20
28 pages
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To Suit Water Heater Models -
Endurance 16
Endurance 20
Endurance 26
Endurance 32
Operation / Installation
Manual
Continuous flow water heaters
This appliance shall be installed in accordance with:
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Questions and Answers

  • B
    bradleyprattAug 12, 2025
    What to do if my Dux Water Heater has no ignition or gas supply?
    • J
      Jason HartAug 13, 2025
      If your Dux Water Heater isn't igniting or has no gas supply, verify that the gas is turned on both at the water heater itself, and at the gas meter or cylinder.
  • B
    Brittany BergAug 16, 2025
    What to do if my Dux Endurance 20 Water Heater unit starts then shuts down immediately?
    • K
      Kelli WilliamsAug 17, 2025
      If your Dux Water Heater starts and then immediately shuts down, first ensure the power is still on. Then, check that the gas isolation valves at both the unit and the gas meter are fully open. Finally, fully open your hot water tap.
  • K
    Kellie ByrdAug 20, 2025
    What to do if my Dux Water Heater starts then the water goes cold?
    • T
      Timothy WalkerAug 20, 2025
      If your Dux Water Heater starts but then the water goes cold, verify that the power is still on. Also, try opening your hot water tap further.
  • L
    Lindsey MurphyAug 25, 2025
    What to do if my Dux Endurance 20 experiences flame failure or low gas flow?
    • M
      Maria RamirezAug 25, 2025
      If your Dux Water Heater experiences flame failure or low gas flow, first, check that the gas is turned on at both the water heater and the gas meter or cylinder. Also, ensure there are no obstructions blocking the flue outlet.
  • J
    jennifer10Aug 27, 2025
    Why is there a noticeable reduction in water flow from my Dux Endurance 20?
    • W
      Wendy McbrideAug 27, 2025
      A noticeable reduction in water flow from your Dux Water Heater indicates that the inlet water filter needs cleaning. It requires a service call.
  • S
    Suzanne HuntAug 31, 2025
    What to do if my Dux Endurance 20 Water Heater unit does not attempt to start at all?
    • S
      Scott RiosAug 31, 2025
      If your Dux Water Heater doesn't start, check that the power is on at the unit and that the isolation valves at the unit are open.
  • A
    Abigail KellySep 4, 2025
    What to do if there is power interruption during bath fill and water will not flow on power reinstatement in my Dux Endurance 20 Water Heater?
    • M
      Mrs. Lorraine VillanuevaSep 4, 2025
      If there's a power interruption during a bath fill and water won't flow after power is restored in your Dux Water Heater, turn off all hot water taps and press the On/Off button twice.
  • J
    Jeffrey LawrenceSep 8, 2025
    How to deal with scale build-up inside the heat exchanger of my Dux Endurance 20 Water Heater?
    • J
      Jennifer SilvaSep 8, 2025
      Scale build-up inside the heat exchanger of your Dux Water Heater requires a service call.

Summary

Regulatory Information and Safety Warnings

Notice to Victorian Consumers

Specific advice for Victorian consumers regarding installation by licensed professionals.

Warning About Hot Water

Highlights dangers of hot water, especially for children and the infirm, with safety precautions.

Features and Benefits

Important Information

Operation Without Controllers

General Water Control Information

Maximum Delivery Temperatures

Lists factory pre-set temperatures and whether they can be changed by an authorized person.

Water Controllers

About the Water Controller

Describes the components and indicators of the digital water controller.

Turning on the Controller

Explains the procedure to switch the water controller on and prepare the unit for operation.

Adjusting Temperature

Details how to set the desired water temperature using the controller's buttons.

Readyhot Pre-Heat Operation

About the Readyhot Preheat System

Explains the function and activation of the optional ReadyHot pre-heat system.

Troubleshooting

Troubleshooting Without Controllers

Provides guidance for common faults when the unit is operated without separate control units.

Installation Manual

General Installation Instructions

Water Controller Installation

Commissioning

Accessories

Product Records

Dux Endurance 20 Specifications

General IconGeneral
Frequency50Hz
ProtectionIP24
CategoryWater Heater
Voltage220-240 V
Temperature rangeUp to 75°C

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