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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

HP170 integrated controller display

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

In the display order below, the held evidence set runs from Chromagen HP170 to Midea RSJ-15/190RDN3-C; its published labels start with E1 and end with P8. 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.

  • ChromagenHP170
  • MideaRSJ-15/190RDN3-C

Published codes

Fault code

E1

Amber — service attention

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

Documented as a lower water temperature sensor error.

A licensed technician confirms the actual cause.

View the canonical E1 result

Fault code

E2

Amber — service attention

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

Documented as a broken controller-to-PCB connection or PCB fault.

A licensed technician confirms the actual cause.

View the canonical E2 result

Fault code

E4

Amber — service attention

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

Documented as an evaporator temperature sensor error.

A licensed technician confirms the actual cause.

View the canonical E4 result

Fault code

E5

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 error.

A licensed technician confirms the actual cause.

View the canonical E5 result

Fault code

E6

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 error.

A licensed technician confirms the actual cause.

View the canonical E6 result

Fault code

E8

Red — urgent safety concern

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

Documented as an electric leakage error.

A licensed technician confirms the actual cause.

View the canonical E8 result

Fault code

E9

Amber — service attention

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

Documented as a compressor suction temperature sensor error.

A licensed technician confirms the actual cause.

View the canonical E9 result

Fault code

P2

Amber — service attention

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

Documented as high discharge temperature protection.

A licensed technician confirms the actual cause.

View the canonical P2 result

Fault code

P4

Amber — service attention

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

Documented as compressor overload protection.

A licensed technician confirms the actual cause.

View the canonical P4 result

Fault code

P8

Amber — service attention

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

Documented as electric-heater open-circuit protection.

A licensed technician confirms the actual cause.

View the canonical P8 result

Official source

Where this result comes from

Chromagen Australia. Chromagen Midea HP170 Installation and Owner’s Manual, Version 1.3. Retrieved .

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