Verified codeset result
The manufacturer documentation publishes fault code P04 for the Evo270-1 wired controller fault display, mapped to the affected EvoHeat models listed below.
Fault code P04
EvoHeat Evo270-1 wired controller fault display: P04
Evo270-1 wired controller fault display
Last verified from the captured official source review.
P04 meaning for this display codeset
This page isolates EvoHeat fault code P04 for the Evo270-1 wired controller fault display. It does not combine the EvoHeat P04 meaning with another controller or codeset.
Before applying the EvoHeat P04 meaning, confirm the affected model uses the Evo270-1 wired controller fault display. In that controller namespace, P04 means documented as an ambient temperature failure.
The EvoHeat Evo 270-1 Manual source anchor on page 15 supports this EvoHeat P04 record for the Evo270-1 wired controller fault display.
The permanent source key evoheat-evo270-1-display P04 keeps the evoheat-evo270-1-display P04 controller/code pairing distinct in publication.
What the documentation says
Documented as an ambient temperature failure.
This is a paraphrase of the manufacturer’s documentation. A licensed technician confirms the actual cause.
Severity
Amber means the fault needs attention; contact the manufacturer or a licensed technician if it persists.
Source-grounded diagnosis context
Documented causes
The manual attributes the fault to an open or short-circuited ambient temperature sensor.
Owner outcomes
What owners reported next
This aggregate appears after at least three structured reports for this exact codeset and code. Counts come from fixed choices only. Private notes are never shown here.
- Fixed
- Unit replaced
- Still unresolved
Repair, replacement and warranty context
Start with diagnosis, then compare repair and replacement
An amber classification usually calls for a diagnosis and repair quote, not automatic replacement. Compare parts availability, repair cost and system age only after the fault has been confirmed by an appropriately licensed professional.
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.
- P01
Documented as a bottom water temperature failure.
- P02
Documented as a top tank water temperature failure.
- P034
Documented as a solar temperature failure.
- P05
Documented as a coil temperature failure.
- P07
Documented as a refrigerant absorption temperature failure.
- P09
Documented as an anti-freeze temperature failure.
Choose the right next step
Warranty or local repair?
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Choose both answers to see the recommended route.
Start with the manufacturer
The unit is under warranty or its coverage is uncertain, so no local repair lead form is shown. Ask the manufacturer about warranty support and keep proof of purchase.
Manufacturer route
Official support
Active support recorded
This brand is recorded as active in the Australian market.
EvoHeat's current Australian technical-support page offers hot-water help, service requests and warranty registration.
Status checked · Research source
Published Australian table for EVO150-1 and EVO270-1: 5 years tank, 2 years compressor and parts, and 1 year on-site labour.
Request local repair or replacement help
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Official source
Where this result comes from
EvoHeat. EvoHeat Evo 270-1 Manual, PDF page 15. Retrieved .