R
Robert AndersonSep 13, 2025
What to do if my Samsung Air Conditioner shows E403 error?
- DDarryl Hoffman DVMSep 14, 2025
If your Samsung Air Conditioner is showing the E403 error, check the outdoor condenser.
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If your Samsung Air Conditioner is showing the E403 error, check the outdoor condenser.
General| Type | Split AC |
|---|---|
| Cooling Capacity | 1.5 Ton |
| Refrigerant | R32 |
| Star Rating | 3 Star |
| Compressor Type | Rotary |
| Voltage | 230 V |
| Operating Voltage | 220-240 V |
| Operating Frequency | 50 Hz |
| Indoor Unit Noise Level (Low) | 32 dB |
| ISER | 3.51 |
| Heating Capacity | Not Available |
Important safety and handling guidelines for service personnel.
Guidelines to prevent damage from static electricity and PL during repair.
Essential safety measures to prevent electrical shock and fire hazards.
Safety precautions related to refrigerant handling and potential environmental hazards.
Safety guidelines for welding air conditioner pipes, focusing on flammable objects and gas.
Procedures and precautions for adding refrigerant, including calculation and safety.
Features of Wind-Free 4Way CST, including micro holes, quiet operation, and energy saving.
Highlights aesthetic appeal, performance, and design of the 4Way Cassette.
Focuses on refined interior design, compact frame, and attractive panel options.
Details the all-round cooling, even air circulation, and comfort features of the 360 Cassette.
Overview of Ducted Type units, their performance, smart pressure control, and installation convenience.
Step-by-step guide for disassembling and reassembling the indoor unit.
Guide to setting indoor unit addresses and installation options using the remote controller.
Steps to set an address for each indoor unit using the remote control.
Description and setup of the ETO function for emergency operation of indoor units.
Guide to test operation modes and check modes using display options.
Manual setting of outdoor unit options and addresses via the remote controller.
Self-diagnosis function to determine installation status and product integrity.
Troubleshooting steps for indoor temperature sensor errors.
Troubleshooting steps for indoor heat exchanger temperature sensor errors.
Troubleshooting steps for indoor unit float sensor errors.
Troubleshooting steps for indoor fan errors.
Troubleshooting steps for EEPROM circuit failures.
Troubleshooting steps for communication errors after tracking.
Diagnosing and resolving whistling noise from the indoor unit in low wind mode.
Initial diagnosis steps for outdoor unit power issues.
Continuation of initial diagnosis for outdoor unit power issues.
Troubleshooting steps for indoor/outdoor communication errors.
Troubleshooting steps for communication errors between outdoor unit INV and MAIN MICOM.
Troubleshooting steps for outdoor sensor errors.
Troubleshooting steps for compressor down due to freezing control errors.
Troubleshooting steps for pipe blockage errors.
Troubleshooting steps for outdoor unit fan errors.
Troubleshooting steps for compressor starting or rotation errors.
Continuation of troubleshooting for compressor starting or rotation errors.
Troubleshooting steps for full current or PFC over-current errors.
Troubleshooting steps for IPM (Over Current) errors.
Continuation of troubleshooting for IPM (Over Current) errors.
Troubleshooting steps for DC LINK over-current or low-voltage errors.
Continuation of troubleshooting for DC LINK over-current or low-voltage errors.
Troubleshooting steps for gas leakage errors.
Continuation of troubleshooting for gas leakage errors.
Wiring diagram for 1-way, 4-way, and 4-way Cassette (600x600) indoor units.
Wiring diagram for MPAH indoor units.
Wiring diagram for AC009/012BXADCH outdoor units.
Wiring diagram for AC024/030/036/042/048BXADCH, AC030/036BXSCCC, AC030/036BXSCCH outdoor units.
Diagram illustrating the refrigerating cycle with descriptions of components.
