Indoor unit OPERATION INDICATOR lamp does not light up — No power to indoor unit

What does Indoor unit no power mean?

When you turn on the power supply and press the emergency operation switch, the left lamp of the OPERATION INDICATOR on the indoor unit does not light up. This indicates that the indoor unit is not receiving electrical power.

• No rated voltage in the main power supply (e.g., tripped breaker, unplugged unit)
• Problem with the power supply to the outdoor unit terminal block
• Miswiring or disconnection of the indoor/outdoor connecting wire
• Poor contact at the indoor terminal block

Click steps to track your progress.

1. 1

   Check that the main power supply (circuit breaker or wall socket) for the air conditioner is turned ON.

2. 2

   Ensure the air conditioner's power plug is fully and correctly inserted into the wall socket.

3. 3

   Press the emergency operation switch once to confirm if the left lamp of the OPERATION INDICATOR lights up.

4. 4

   Visually inspect the indoor/outdoor connecting wires for any signs of disconnection, damage, or miswiring.