Dux heat pump models

Copy the full model number from the data plate, including every suffix. One changed letter can indicate another controller, so a code table is shown only when official evidence covers that exact model.

Company profile

About Dux

Dux is the hot-water brand supplied by Dux Manufacturing Limited, the company named in its official Australian warranty information. Its heat-pump line includes integrated Ecosmart DHC appliances and the 270-litre Ecosmart Pro-Series.

Sources: Dux warranty details — retrieved 30 August 2026 Dux Ecosmart Heat Pump Installation and Owner’s Manual, H4149 Revision B, PDF page 1 Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C, PDF page 1

Captured specifications show R290 refrigerant across the documented 200 and 300-litre DHC units and the 270-litre Pro-Series, while their app and wired-controller interfaces differ. Dux maintains Australian aftersales and warranty channels for these systems, with official manuals directing owners to use the model and serial number when seeking service.

Sources: Dux Ecosmart Heat Pump Installation and Owner’s Manual, H4149 Revision B, PDF page 11 Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C, PDF page 10 Dux Ecosmart Heat Pump Installation and Owner’s Manual, H4149 Revision B, PDF page 1 Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C, PDF page 1 Dux aftersales and support — retrieved 30 August 2026

Evidence catalogue record

Data record for Dux

The evidence catalogue contains 37 exact Dux model records: 37 current rather than a single undifferentiated product entry. Dux register rows carry eligibility dates from 1 November 2012 to 31 December 2030, which supplies market-history context without claiming that every recorded unit remains available from retailers today. Captured Dux documents used by this project describe Ecosmart Pro-Series controller display and Smart Life app error display, and each source scope stays separate instead of becoming one generic brand-wide fault table. Those publications presently support 12 of 37 Dux model mappings across 2 public fault-code namespaces; other records remain identification entries until equivalent controller evidence is found.

Sources: CER ASHP register snapshot (37 Dux rows)Dux Ecosmart Heat Pump Installation and Owner’s Manual, H4149 Revision B Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C

Dux owners can use Dux aftersales and support as the current public route preserved here for service questions or a warranty assessment based on the exact appliance. The official Dux warranty material documents Ecosmart in a single-family dwelling: 7 years tank parts (3 years labour), 3 years refrigeration parts and labour, and 1 year other components parts and labour, and this hub keeps those periods tied to the cited product scope instead of presenting a universal brand promise. This Dux context therefore joins a dated register record, exact manual scopes and a live support source; the separate owner guide focuses on identifying plates and reading controllers rather than repeating this profile. For Dux, the boundary between a listed model and an evidence-mapped controller is deliberate: registration establishes identity, while only the referenced publication establishes which fault meanings belong on a model page.

Sources: Dux aftersales and support Dux Ecosmart warranty summary — retrieved 30 August 2026 CER ASHP register snapshot (37 Dux rows)Dux Ecosmart Heat Pump Installation and Owner’s Manual, H4149 Revision B Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C

Structured record fields

Record at a glance

Owner or Australian importer: Dux Manufacturing Limited; Dux warranty details — retrieved 30 August 2026
Official support contact: Dux aftersales and support; Dux aftersales and support
Documented warranty duration: Ecosmart in a single-family dwelling: 7 years tank parts (3 years labour), 3 years refrigeration parts and labour, and 1 year other components parts and labour.; Dux Ecosmart warranty summary — retrieved 30 August 2026
Documented product or controller lines: Ecosmart Pro-Series controller display and Smart Life app error display; Dux Ecosmart Heat Pump Installation and Owner’s Manual, H4149 Revision B Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C
Register status: 37 current, 0 past, 0 manual-retained; 37 exact model records; CER ASHP register snapshot (37 Dux rows)
Evidence-backed model mappings: 12 of 37 exact model records across 2 fault-code namespaces; Dux Ecosmart Heat Pump Installation and Owner’s Manual, H4149 Revision B Dux Ecosmart Pro-Series Heat Pump Installation and Owner’s Manual, H4950 Revision C

Fault-code coverage

Source-verified codes available for some models

At least one model has a fault-code set mapped from official documentation. Codes are shown only on models explicitly covered by that source.

Coverage checked 29 August 2026.

Manufacturer route

Official support

Active support recorded

This brand is recorded as active in the Australian market.

Dux continues to publish current Australian Ecosmart heat-pump manuals with owner support and warranty routes.

Status checked 29 August 2026 · Research source

Official documentation or product support

Ecosmart in a single-family dwelling: 7 years tank parts (3 years labour), 3 years refrigeration parts and labour, and 1 year other components parts and labour.

What owners look up

Popular Dux fault codes

Reviewed examples shown while recent anonymous trends load.

Popularity uses aggregate fault-code lookups only. No contact details or browser identifiers are returned by this module.

Registered units

37 models

Model numbers are shown exactly as registered.

200DHA20
No verified codes mapped to this exact model
Current register listing
200DHA20P
No verified codes mapped to this exact model
Current register listing
200DHB25
No verified codes mapped to this exact model
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200DHB25P
No verified codes mapped to this exact model
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200DHC25
Verified codes available
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200DHC25-H
Verified codes available
Current register listing
200DHC25P
Verified codes available
Current register listing
200DHC25P-H
Verified codes available
Current register listing
270DHB36
Verified codes available
Current register listing
270DHB36P
Verified codes available
Current register listing
270DHC36
Verified codes available
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270DHC36P
Verified codes available
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300DHA20
No verified codes mapped to this exact model
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300DHA20P
No verified codes mapped to this exact model
Current register listing
300DHB25
No verified codes mapped to this exact model
Current register listing
300DHB25P
No verified codes mapped to this exact model
Current register listing
300DHC25
Verified codes available
Current register listing
300DHC25-H
Verified codes available
Current register listing
300DHC25P
Verified codes available
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300DHC25P-H
Verified codes available
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D2FHG3000C
No verified codes mapped to this exact model
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D2FHG4FP0C
No verified codes mapped to this exact model
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D2FHG4HW0C
No verified codes mapped to this exact model
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DHSA45-160
No verified codes mapped to this exact model
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DHSA45-180
No verified codes mapped to this exact model
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DHSA45-250
No verified codes mapped to this exact model
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DHSA45-315
No verified codes mapped to this exact model
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DHSA45-400
No verified codes mapped to this exact model
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DHSA45-N250
No verified codes mapped to this exact model
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DHSA45-N300
No verified codes mapped to this exact model
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DHSA45P-160
No verified codes mapped to this exact model
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DHSA45P-180
No verified codes mapped to this exact model
Current register listing
DHSA45P-250
No verified codes mapped to this exact model
Current register listing
DHSA45P-315
No verified codes mapped to this exact model
Current register listing
DHSA45P-400
No verified codes mapped to this exact model
Current register listing
DHSA45P-N250
No verified codes mapped to this exact model
Current register listing
DHSA45P-N300
No verified codes mapped to this exact model
Current register listing