No cold or warm air from the AC

🌬️ What to Do If Your Air Conditioner Is Not Blowing Cold or Hot Air

Image Source: AirChill AC

Summary:
If your air conditioner turns on but doesn’t blow cold or warm air, follow this step-by-step guide to check for simple issues you can safely identify and fix before requesting maintenance.

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🧭 Step 1: Check the Power and Remote Control

Before anything else, make sure your AC is receiving power and the remote control is working properly.

• Ensure the AC power plug is firmly inserted into the outlet.

• Check the remote control display, if it’s faint or unresponsive, replace the batteries.

• Confirm that the AC mode is set correctly:

Simple Illustration of Japanese AC Remote Basic Function (Image Source: Japan Mobility)

❄️ Cool (冷房 / “Cool”) for cold air

• 🔥 Heat (暖房 / “Heat”) for warm air

• 💧 Dry (除湿 / “Dehumidify”) to remove humidity (not strong cooling)

💡 Tip: Some remotes default to “Dry” or “Auto” mode, which may blow neutral air depending on the room temperature. Make sure it’s not accidentally in “Fan” mode.

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🔍 Step 2: Check the Indoor and Outdoor Units

Take a quick look at both the indoor and outdoor parts of your AC system.

✅ Indoor Unit

• Make sure no indicator lights are blinking on the display panel.

Example picture of AC indicators (Image Source: Letscool Aircon Servicing)

• If lights are blinking, take note of which part is blinking and what color it is, this information helps our maintenance team identify the issue faster.

• While the AC is running, listen carefully for any unusual sounds such as rattling, grinding, or repeated clicking from the indoor unit.

🌿 Outdoor Unit

• Step outside and check the outdoor fan (the large unit usually on the balcony or outside wall).

  • Is the fan spinning?

  • Can you hear a clicking sound when the AC starts or runs?

  • If the fan is not moving at all, the outdoor unit may have stopped due to a power or internal issue.

⚠️ Caution: Do not open or touch the outdoor unit. If you see ice, leaks, or loose wires, stop using the AC and contact us immediately.

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⚙️ Step 3: Try Simple Adjustments

If everything looks normal, try these simple adjustments:

1. Adjust the Temperature

• For cooling, set the temperature to 24°C or lower.

• For heating, set to 28°C or higher.

• Wait 5–10 minutes to see if there is a change in air temperature.

2. Change the Remote Batteries

• Weak batteries can prevent signals from reaching the unit.

• Replace both batteries with fresh AA or AAA (depending on your remote).

3. Reset the Air Conditioner (Power Cord Reset)

If your AC still doesn’t respond, try resetting it manually:

1. Turn off the AC using the remote.

2. Unplug the power cord from the wall outlet.

3. Wait 10–20 minutes.

4. Plug the power cord back in.

5. Turn on the AC and set it to your desired mode and temperature.

💡 Tip: This helps clear temporary system errors or electrical memory issues inside the unit.

If resetting the AC does not fix the problem, please proceed to contact us using the form below:
🔗 How to Submit a Maintenance Request

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🚫 Step 4: Avoid Forcing the Unit

• Don’t repeatedly turn the AC on and off, this can cause further damage.

• Avoid using “Dry” mode to force cooling if the unit is not responding.

• If you notice unusual noises, blinking lights, or a burning smell, stop using the unit immediately.

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📞 Step 5: Contact Saki Corporation

If the issue continues after trying the steps above, please submit a repair request online:
🔗 How to Submit a Maintenance Request

Our maintenance team will respond as soon as possible and schedule a visit to inspect your air conditioner.

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Final Note:

If your AC doesn’t turn on or if any of the indicator lights are blinking, please refer to the guide provided on this page. You may also check the reset guide, as resetting the unit can often help restore normal operation.

Most minor issues with the AC can usually be resolved with these simple steps or a quick visit from our maintenance team.