Brand: DAIKIN
Category: Control Unit
Document Type:
Language: EN
Manual for BRC230Z4 - Troubleshooting and error codes + PDF Download
Uploaded: April 8, 2025, 1:57 p.m.
Warranty Summary
No warranty information found in this installation manual.
This manual is an installation manual for the DAIKIN BRC230Z4 Zone Controller. It provides step-by-step instructions for wiring and installing the controller, including connecting to indoor units, zone motors, and remote sensors. Key operations covered are electrical wiring, field settings adjustments, and connecting optional accessories. The manual also includes troubleshooting information with fault codes. Always refer to safety considerations before installation and ensure all electrical work is done by qualified personnel according to local regulations.
Troubleshooting and error codes
| Contents Code | Section Code | Fault Indication |
|---|---|---|
| 0 | A | **Activation of safety device Indoor (general)** |
| 1 | A | **Faulty PCB** |
| 2 | A | **Fan interlock (manual)** |
| 3 | A | **Adnormal drain water level or plug missing** |
| 4 | A | **Adnormal heat exchanger (1) temp.** |
| 5 | A | **Adnormal heat exchanger (2) temp.** |
| 6 | A | **Fan motor overload over-current lock** |
| 7 | A | **Air direction adjust motor lock** |
| 8 | A | **AC input over-current** |
| 9 | A | **Faulty electronic expansion valve** |
| A | A | **Heater overheating** |
| H | C | **Faulty sensor system (general)** |
| C | C | **Faulty drain water level** |
| J | C | **Faulty heat exchanger temp. sensor system (R2T)** |
| E | C | **Faulty gas pipe temp. sensor system (R3T)** |
| F | C | **Fan motor overload over-current, faulty lock sensor system** |
| 1 | C | **Air direction motor lock, faulty sensor system** |
| 2 | C | **Faulty AC input current sensor system** |
| 3 | C | **Faulty air suction temp. sensor system (R1T)** |
| F | E | **Activation of safety device outdoor (general)** |
| 1 | E | **Faulty PCB** |
| 2 | E | **Faulty air sensor system** |
| 3 | E | **Faulty power supply sensor system** |
| 4 | E | **Abnormal high pressure (HPS)** |
| 5 | E | **Abnormal low pressure (LPS)** |
| 6 | E | **Compressor motor overload** |
| 7 | E | **Compressor motor over-current lock** |
| 8 | E | **Out door fan motor overload** |
| 9 | E | **AC input over-current** |
| A | E | **Faulty electronic expansion valve** |
| H | E | **Pump over-current lock** |
| 1 | H | **Activation of safety device for system No. 1** |
| 2 | H | **Activation of safety device for system No. 2** |
| F | J | **Faulty refrigerant system (general)** |
| 1 | J | **Faulty current pressure sensor system** |
| 2 | J | **Faulty discharge pipe temp. sensor system** |
| 3 | J | **Faulty refrigerant pressure sensor system** |
| 4 | J | **Abnormal temp. sensor equivalent saturation temp. sensor system** |
| 5 | J | **Abnormal temp. rise inside control box** |
| 6 | J | **Abnormal temp. rise of radiation fin (power transistor)** |
| L | J | **Faulty INV system** |
| 1 | L | **Faulty PCB** |
| 2 | L | **Faulty temp. rise sensor inside control box** |
| 3 | L | **Faulty temp. rise of radiation fin (power radiation fin** |
| 4 | L | **Faulty DC current sensor system** |
| 5 | L | **Faulty AC or DC output current system** |
| 6 | L | **Air conditioner (multi) general** |
| 7 | L | **Inverter current abnormal** |
| 8 | L | **Inverter start-up error** |
| 9 | L | **Faulty power transistor** |
| P | L | **Gas shortage (ice thermal storage equipment)** |
| 1 | P | **High voltage of capacitor in inverter circuit or power imbalance** |
| 2 | P | **Short of gas** |
| 3 | P | **Reversed phase connection** |
| F | P | **Faulty power supply voltage (general) or check operation is not complete** |
| 1 | U | **Faulty transmission between indoor and outdoor units** |
| 2 | U | **Failure of transmission between outdoor units** |
| 3 | U | **Faulty transmission between remote controller** |
| 4 | U | **Faulty transmission between indoor units (main & sub)** |
| 5 | U | **Faulty transmission to/from remote controllers (main & sub)** |
| 6 | U | **Faulty transmission between indoor & outdoor in the same system** |
| 7 | U | **Im proper combination of unit address indoor & outdoor, indoor & outdoor unit address setting** |
| 8 | U | **Incorrect wiring/piping to/from peripheral equipment (air central control controller)** |
| 9 | U | **Faulty central control address setting (Address duplications)** |