Skip to content
Heat Pump Fault Finder AU

Verified codeset result

The manufacturer documentation publishes fault code E05 for the QDC0030PD-11 digital controller display, mapped to the affected Quantum models listed below.

Fault code E05

Quantum QDC0030PD-11 digital controller display: E05

QDC0030PD-11 digital controller display

Quantum logo (for identification)

Last verified from the captured official source review.

E05 meaning for this display codeset

This page isolates Quantum fault code E05 for the QDC0030PD-11 digital controller display. It does not combine the Quantum E05 meaning with another controller or codeset.

Before applying the Quantum E05 meaning, confirm the affected model uses the QDC0030PD-11 digital controller display. In that controller namespace, E05 means documented as compressor overheat protection above the h95 setting.

The Quantum Domestic Heat Pump Owner Manual QDC0030PD-11 source anchor on page 26 supports this Quantum E05 record for the QDC0030PD-11 digital controller display.

The permanent source key quantum-qdc0030pd-11-display E05 keeps the quantum-qdc0030pd-11-display E05 controller/code pairing distinct in publication.

What the documentation says

Documented as compressor overheat protection above the H95 setting.

This is a paraphrase of the manufacturer’s documentation. A licensed technician confirms the actual cause.

Severity

Red — urgent safety concern

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

Source-grounded diagnosis context

Documented causes

Repair, replacement and warranty context

Prioritise safety before the repair-or-replace decision

A red classification warrants urgent assessment by an appropriately licensed professional. The code alone cannot establish whether a component repair or full system replacement is proportionate.

This brand has a verified current Australian support route, so check warranty coverage with the manufacturer before authorising paid repair or replacement work.

Affected models

Every model mapped to this codeset is listed with the evidence match state used by this site.

Related codes from this codeset

These codes appear in the same documented controller or display codeset.

  • E01

    Documented as an open or shorted water-temperature sensor circuit.

  • E02

    Documented as an open or shorted compressor-temperature sensor circuit.

  • E03

    Documented as an open or shorted evaporator-temperature sensor circuit.

  • E04

    Documented as compressor overload protection.

  • E06

    Documented as compressor overheat protection above 105 °C.

  • E08

    Documented as an open or shorted optional ambient-temperature sensor circuit.

Choose the right next step

Warranty or local repair?

Answer both questions. If the unit may be covered, we will direct you to the manufacturer first. Your answers stay in this page unless you submit a repair request.

Choose both answers to see the recommended route.

Official source

Where this result comes from

Quantum Energy Technologies. Quantum Domestic Heat Pump Owner Manual QDC0030PD-11, PDF page 26. Retrieved .

Report a problem with this page