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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

MK4068 bolt-on heat-pump controller display

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

In the display order below, the held evidence set runs from Siddons Solarstream MAHRW010ZB-250SS to Siddons Solarstream MAHRW010ZB-315VED; its published labels start with EE1 and end with PP7. 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.

  • Siddons SolarstreamMAHRW010ZB-250SS
  • Siddons SolarstreamMAHRW010ZB-250VEO
  • Siddons SolarstreamMAHRW010ZB-315SS
  • Siddons SolarstreamMAHRW010ZB-315VED

Published codes

Fault code

EE1

Red — urgent safety concern

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

Documented as system high-pressure protection.

A licensed technician confirms the actual cause.

View the canonical EE1 result

Fault code

EE2

Red — urgent safety concern

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

Documented as system low-pressure protection.

A licensed technician confirms the actual cause.

View the canonical EE2 result

Fault code

EE4

Red — urgent safety concern

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

Documented as power phase-sequence protection.

A licensed technician confirms the actual cause.

View the canonical EE4 result

Fault code

EE8

Amber — service attention

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

Documented as a communication failure.

A licensed technician confirms the actual cause.

View the canonical EE8 result

Fault code

PP1

Amber — service attention

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

Documented as a hot-water tank temperature-sensor failure.

A licensed technician confirms the actual cause.

View the canonical PP1 result

Fault code

PP2

Amber — service attention

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

Documented as a water-outlet temperature-sensor failure.

A licensed technician confirms the actual cause.

View the canonical PP2 result

Fault code

PP3

Amber — service attention

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

Documented as a system coil temperature-sensor failure.

A licensed technician confirms the actual cause.

View the canonical PP3 result

Fault code

PP4

Amber — service attention

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

Documented as a system suction temperature-sensor failure.

A licensed technician confirms the actual cause.

View the canonical PP4 result

Fault code

PP5

Amber — service attention

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

Documented as a solar-collector temperature-sensor failure.

A licensed technician confirms the actual cause.

View the canonical PP5 result

Fault code

PP6

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 PP6 result

Fault code

PP7

Amber — service attention

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

Documented as water-flow protection.

A licensed technician confirms the actual cause.

View the canonical PP7 result

Official source

Where this result comes from

Siddons Solarstream. Siddons Solarstream Bolt-On Heat Pump Owner Manual MK4068-02B. Retrieved .

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