Braemar Ducted Systems – Status & Fault Code Index (SDHV / KDHV) - Residential Service Guide ES E247-A
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
Quick reference
- Ducted fault codes: ES E247‑A PDF p62 onwards
- Applicable systems: SDHV / KDHV ducted only