Kia Optima DL3: Automatic climate control system / Manual heating and air conditioning

The heating and cooling system can be controlled manually by pressing buttons or turning knob(s) other than the AUTO button. In this case, the system works sequentially according to the order of buttons or knob(s) selected.

1. Start the engine.

2. Set the mode to the desired position. For improving the effectiveness of heating and cooling;
- Heating:
- Cooling:

3. Set the temperature control to the desired position.

4. Set the air intake control to the outside (fresh) air position.

5. Set the fan speed control to the desired speed.

6. If air conditioning is desired, turn the air conditioning system on. Press the AUTO button in order to convert to full automatic control of the system.

1. Press the AUTO button. The modes, fan speeds, air intake and air-conditioning will be controlled automatically by setting the temperature. 2.

The mode selection button controls the direction of the air flow through the ventilation system. The air flow outlet port is converted as follows: Refer to the illustration in the “Manual climate control system”.

Other information:

Kia Optima DL3 2019-2026 Service and Repair Manual: Walk-in Switch

Components and components location Component Location 1. Walk-in switch Repair procedures Removal    When prying with a flat-tip screwdriver or use a prying trim tool, wrap it with protective tape, and apply prote

Kia Optima DL3 2019-2026 Service and Repair Manual: Heater Control Unit

Components and components location Components Connector Pin Function [Connector A] Pin NO Funtion Pin NO Funtion 1 Ground 11 Ground 2 Clean signal 12 -

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