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Heat Pump Fault Finder AU

Verified shared codeset

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

DISPLAY codeset

Ecosmart Pro-Series controller display

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

In the display order below, the held evidence set runs from Dux 270DHB36 to Dux 270DHC36P; its published labels start with E01 and end with P82. 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.

  • Dux270DHB36
  • Dux270DHB36P
  • Dux270DHC36
  • Dux270DHC36P

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 high pressure protection.

A licensed technician confirms the actual cause.

View the canonical E01 result

Fault code

E08

Amber — service attention

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

Documented as a wired remote control communication failure.

A licensed technician confirms the actual cause.

View the canonical E08 result

Fault code

E09

Amber — service attention

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

Documented as winter frost protection.

A licensed technician confirms the actual cause.

View the canonical E09 result

Fault code

E11

Amber — service attention

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

Documented as DC motor stalling.

A licensed technician confirms the actual cause.

View the canonical E11 result

Fault code

E43

Amber — service attention

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

Documented as high pressure switch three-times protection.

A licensed technician confirms the actual cause.

View the canonical E43 result

Fault code

E45

Red — urgent safety concern

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

Documented as discharge overheating three-times protection.

A licensed technician confirms the actual cause.

View the canonical E45 result

Fault code

P01

Amber — service attention

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

Documented as a bottom water temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical P01 result

Fault code

P02

Amber — service attention

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

Documented as a top tank water temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical P02 result

Fault code

P03

Amber — service attention

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

Documented as a discharge temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical P03 result

Fault code

P04

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 P04 result

Fault code

P05

Amber — service attention

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

Documented as a coil temperature sensor failure.

A licensed technician confirms the actual cause.

View the canonical P05 result

Fault code

P07

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 P07 result

Fault code

P82

Red — urgent safety concern

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

Documented as discharge overheating protection.

A licensed technician confirms the actual cause.

View the canonical P82 result

Official source

Where this result comes from

Dux Manufacturing Limited. Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C. Retrieved .

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