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Heat Pump Fault Finder AU

Exact model

Dux 200DHA20P

Fault-code coverage and official support for this exact registered model.

Evidence-led introduction

About this exact model

The mapping review separates Dux 200DHA20P from the covered 200DHC25 model because the official evidence identifies a different or ambiguous controller generation.

Evidence: Official model evidence

The CER register lists Dux 200DHA20P as current, with eligibility recorded from 17 November 2022 to 31 December 2030; this dated status is separate from the controller evidence used for fault-code compatibility.

Evidence: CER ASHP item 106

Model record

Current register listing

Registry source: CER ASHP item 106.

Source-checked facts

Model specifications

Blank or ambiguous specifications are left out. Each value below points to its register record or captured manual page.

Source-checked specifications for this exact heat-pump model
SpecificationValueSource
CER listing statusCurrentCER ASHP item 106
CER eligible from17 November 2022CER ASHP item 106
CER eligible to31 December 2030CER ASHP item 106
Zone 1 certificates25 STCsCER ASHP item 106
Zone 2 certificates25 STCsCER ASHP item 106
Zone 3 certificates30 STCsCER ASHP item 106
Zone 4 certificates32 STCsCER ASHP item 106
Zone 5 certificates31 STCsCER ASHP item 106

Manual review: Captured manuals for this sourced brand do not explicitly cover this exact registry model, so no specification was transferred from a sibling.

Honest coverage status

No verified public codes for this model

Dux has source-verified codes for some models, but no public codeset is evidenced for 200DHA20P. Codes from another model may have different meanings.

Different or ambiguous controller generation

Dux’s official H4128 manual lists 200DHA20P under the earlier R134a Ecosmart range and documents a Dux Hot Water app controller, not the Smart Life controller used by the mapped DHC models.

Model mapping checked .

Nearest covered sibling model

These links are for comparison only; their codes are not assigned to this model.

Coverage checked .

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 · Research source

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.