Braemar Ducted Systems – Status & Fault Code Index (SDHV / KDHV) - Residential Service Guide ES E247-A
⚠️ Safety Notice – Reverse Cycle Air Conditioners
This equipment must only be installed, commissioned, serviced and repaired by suitably qualified and licensed personnel.
Before commencing work, complete a task-specific risk assessment and ensure electrical isolation procedures, safe access, adequate service clearances and appropriate PPE have been considered. All work must comply with applicable regulations, standards and manufacturer requirements.
Particular care must be taken when working around electrical systems, refrigerant circuits, moving parts, roof spaces, ceiling spaces, confined spaces and working-at-heights hazards where applicable.
Do not proceed if safe access, required clearances, confined space risks or appropriate safety controls cannot be achieved and maintained.
Safety takes priority over diagnosis, repairs, installation schedules and customer expectations. If the task cannot be completed safely, it must not proceed until the risks have been adequately controlled.
Applies to
Braemar ducted reverse cycle inverter systems covered in the
Braemar Residential Service Guide ES E247‑A, including:
- SDHV / SCHV Series – R410A ducted (single & three phase)
- KDHV / KCHV Series – R32 ducted inverter systems
Important note
Ducted systems use a dedicated fault and protection code structure that differs from wall split, cassette, bulkhead, and multi‑split units.
When diagnosing SDHV or KDHV systems, always refer to the ducted-specific error code table in the service manual.
Where to find ducted fault codes
- “Error codes for ducted split systems” – ES E247‑A, PDF page 62 onwards
Common ducted system fault codes
Compressor & system protection
| Code | Description |
|---|---|
| E1 | Compressor high pressure protection |
| E2 | Indoor anti‑freezing protection |
| E3 | Compressor low pressure / refrigerant protection |
| E4 | Compressor discharge high temperature protection |
| H3 | Compressor overload protection |
| H5 | IPM (inverter module) protection |
Electrical & communication faults
| Code | Description |
|---|---|
| E6 | Communication error (indoor ↔ outdoor) |
| PL | DC bus low voltage protection |
| PH | DC bus high voltage protection |
| PU | Capacitor charging / inverter fault |
Fan & airflow related faults
| Code | Description |
|---|---|
| E8 | Indoor fan fault |
| H6 | DC fan motor fault |
| F6 | Frequency reduction due to overload |
Sensor & control faults
| Code | Description |
|---|---|
| F0 – F5 | Thermistor and control sensor circuit faults |
| C4 / C5 | Jumper plug fault |
| EE / ee | Memory or EEPROM fault |
Common troubleshooting guidance
- Confirm the unit is SDHV or KDHV
- Reference ducted error code table only (PDF p62+)
- Address protection faults before electrical faults
- Verify communication wiring for E6 faults
- Review commissioning status if recently installed
Avoid common misdiagnosis
- Do not reference wall split or cassette fault charts
- Do not apply non‑ducted fault logic to ducted systems
- Always identify system type before fault diagnosis
Related articles
- E1 High Pressure Protection – Ducted Systems - E1 Fault Code – High Pressure Protection (Ducted Systems) SDHV / SCHV - KDHV / KCHV - Residential Service Guide ES E247-A: Seeley International Pty Ltd
- E6 Communication Error – Ducted Systems - E6 - single phase ducted systems SDHV, KDHV and "Invertair" add on coolers SACV, KACV - communication error between outdoor control PCB and Indoor control PCB: Seeley International Pty Ltd
- H5 IPM Protection – Ducted Inverter Units - H5 - IPM protection - KDHV and SCHV: Seeley International Pty Ltd
Quick reference
- Ducted fault codes: ES E247‑A PDF p62 onwards
- Applicable systems: SDHV / KDHV ducted only