A window air conditioner combines all its cooling components in one compact unit. The wiring diagram shows the electrical connections between the compressor, fan motor, run capacitors, thermistors, relay, and transformer. Each part plays a vital role in efficient cooling and temperature control.
Window AC wiring Diagram
This article explains the complete wiring diagram of a window air conditioner, showing connections between the compressor, fan motor, capacitors, relay, thermistors, and transformer. It helps technicians and students understand how each electrical component works together for efficient cooling and automatic temperature control. Perfect for learning and troubleshooting non-inverter window AC systems.
In this diagram, the compressor is connected to the compressor capacitor, which helps it start smoothly and maintain cooling efficiency. The fan motor has multiple wires — usually red, blue, black, white, and yellow — connected through a fan motor capacitor to regulate airflow across the condenser and evaporator coils. The thermistor (room and pipe) senses temperature changes, sending signals to the control board for automatic cooling regulation.
The power relay controls the compressor’s on/off operation, while the transformer provides the required low-voltage power to the display board and other control circuits. All components must be wired correctly to ensure safe operation, proper cooling, and long service life.
This diagram helps technicians and students understand the working of a window-type non-inverter AC and makes troubleshooting easy for maintenance and repair work.
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