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Heat Pump Fault Finder AU

Verified shared codeset

Every result below passed dual extraction agreement and source-anchor checks.

APP codeset

Smart Life app error display

6 documented fault codes, shared only by the compatible models listed here.

In the display order below, the held evidence set runs from Dux 200DHC25 to Dux 300DHC25P-H; its published labels start with E01 and end with E07. The source and each model-mapping record remain visible on this page.

Compatible models

This result is published only for the models explicitly covered by the source evidence.

  • Dux200DHC25
  • Dux200DHC25-H
  • Dux200DHC25P
  • Dux200DHC25P-H
  • Dux300DHC25
  • Dux300DHC25-H
  • Dux300DHC25P
  • Dux300DHC25P-H

Published codes

Fault code

E01

Amber — service attention

Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.

Documented as a water tank temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical E01 result

Fault code

E03

Amber — service attention

Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.

Documented as an ambient temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical E03 result

Fault code

E04

Amber — service attention

Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.

Documented as a compressor discharge temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical E04 result

Fault code

E05

Amber — service attention

Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.

Documented as a suction temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical E05 result

Fault code

E06

Amber — service attention

Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.

Documented as an evaporator coil temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical E06 result

Fault code

E07

Red — urgent safety concern

Red means the documented fault involves safety-critical, leak, electrical, refrigerant, lockout or overheat language.

Documented as high compressor discharge temperature with overheat protection active.

A licensed technician confirms the actual cause.

View the canonical E07 result

Official source

Where this result comes from

Dux Manufacturing Limited. Dux Ecosmart Heat Pump Installation and Owner’s Manual, H4149 Revision B. Retrieved .

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