What to do if my Samsung Air Conditioner displays error E221?
- LlauracaseySep 9, 2025
If your Samsung Air Conditioner displays error code E221, you should check the outdoor sensor for an open or short circuit.

What to do if my Samsung Air Conditioner displays error E221?
If your Samsung Air Conditioner displays error code E221, you should check the outdoor sensor for an open or short circuit.
What to do if my Samsung AC BXU CH Air Conditioner displays error E320?
If your Samsung Air Conditioner displays error code E320, you should check the OLP sensor for an open or short circuit.
What to do if my Samsung Air Conditioner displays error E410?
If your Samsung Air Conditioner is showing error code E410, you should check the following: * Check the low pressure sensor. * Check the refrigerant amount for any leakage. * Ensure that the indoor unit inlet and outlet are not covered. * Verify that the indoor unit motor is operating correctly. * Make sure the indoor heat exchanger isn't frozen.
What to do if my Samsung Air Conditioner displays error E467?
If your Samsung Air Conditioner displays error code E467, you should check the compressor wire.
What to do if my Samsung AC BXU CH Air Conditioner displays error E554?
If your Samsung Air Conditioner displays error code E554, you should check the refrigerant.
What to do if my Samsung AC BXU CH displays error E466?
If your Samsung Air Conditioner displays error code E466, you should check AC Power and DC Link Voltage.
What to do if my Samsung AC BXU CH Air Conditioner displays error E404?
If your Samsung Air Conditioner shows error code E404, you should check the compressor when it starts.
What to do if my Samsung Air Conditioner displays error E403?
If your Samsung Air Conditioner shows error code E403, you should check the outdoor condenser and check the compressor when it starts.
What to do if my Samsung AC BXU CH displays error E441?
If your Samsung Air Conditioner displays error code E441, you should: 1. Check the range of temperature limited for cooling operation. 2. Check the outdoor temperature sensor.
What to do if my Samsung AC BXU CH Air Conditioner displays error E440?
If your Samsung Air Conditioner shows error code E440, you should: 1. Check the range of temperature limited for heating operation. 2. Check the outdoor temperature sensor.
| Series | BXU CH Series |
|---|---|
| Cooling Capacity | 18000 BTU/h |
| Noise Level (Outdoor Unit) | 52 dB |
| Power Supply | 220-240V, 50Hz |
| Features | Sleep Mode |
General safety guidelines and specific California warning for safe operation.
Crucial safety measures for installing the unit, including electrical and physical safety.
Guidelines for selecting an optimal and safe location for outdoor unit installation.
Details on outdoor unit dimensions, clearances, and factors like snow and sea breeze.
Procedures for fixing the unit, connecting power and communication cables, and managing conduits.
Instructions for connecting refrigerant pipes, determining diameters, and performing brazing with nitrogen flushing.
Steps for vacuum drying the system, leak testing, and adjusting the refrigerant charge.
Guidance on insulating refrigerant pipes, managing water drainage, and performing final checks and trial operation.
Manual configuration of outdoor unit options, addresses, and operating modes.
Procedure for safely recovering refrigerant from the system for maintenance or relocation.
Instructions for operating stop valves and installing wind baffles for unit protection.
Comprehensive list of error codes with meanings and troubleshooting steps for diagnosing issues.











