2015 Nissan Sentra Owners Manual - Heater and Air Conditioner (manual) (if so equipped)

Heater and Air Conditioner (manual) (if so equipped)

NOTE:

• Odors from inside and outside the vehicle can build up in the air conditioner unit. Odor can enter the passenger compartment through the vents.
• When parking, set the heater and air conditioner controls to turn off air recirculation to allow fresh air into the passenger compartment.

  This should help reduce odors inside the vehicle.

1. Fan speed control / system OFF dial / air conditioning (A/C) button (if so equipped)
2. Air flow control buttons
3. Temperature control dial / MAX A/C button
4. Air recirculation button
5. Rear window defroster button
6. Front windshield defrost button

Controls

Fan control dial

The fan control dial turns the fan on and off, and controls fan speed.

Air flow control buttons

The air flow control buttons allow you to select the air flow outlets.

MAX — Air flows from center and side

A/Cvents with maximum cooling.

 — Air flows from center and side
vents.

 — Air flows from center and side
vents and foot outlets.

 — Air flows mainly from foot
outlets.

  — Air flows from defroster
outlets and foot outlets.

 — Air flows mainly from
defroster outlets.

Temperature control dial

The temperature control dial allows you to adjust the temperature of the outlet air. To lower the temperature, turn the dial to the left. To increase the temperature, turn the dial to the right.

 Air recirculation button

On position (Indicator light on): Interior air is recirculated inside the vehicle.

Press the  button to the ON
position when:

• driving on a dusty road.
• to prevent traffic fumes from entering passenger compartment.
• for maximum cooling when using the air conditioner.

The air recirculation function does not operate when in the  or
 air flow modes.

Off position (Indicator light off):

Outside air is drawn into the passenger compartment and distributed through the selected outlet.

Use the off position for normal heater or air conditioner operation.

 Air conditioner
button (if so equipped)

Start the engine, turn the fan control dial to the desired position and press the button to turn on the air conditioner. The indicator light comes on when the air conditioner is operating.

To turn off the air conditioner, press the button again.

The air conditioner cooling function operates only when the engine is running.

Rear window and outside mirror (if so equipped) defroster switch

For more information about the rear window and outside mirror (if so equipped) defroster switch, see “Rear window and outside mirror (if so equipped) defroster switch” in the “Instruments and controls” section of this manual.

Heater operation

This mode is used to direct heated air to the foot outlets. Some air also flows from the defrost outlets and the side vent outlets.

1. Press the  button to the OFF
   position for normal heating.
2. Press the  air flow control
   button.
3. Turn the fan control dial to the desired position.
4. Turn the temperature control dial to the desired position between the middle and the hot position.

Ventilation

This mode directs outside air to the side and center vents.

1. Press the  button to the OFF
   position.
2. Press the  air flow control
   button.
3. Turn the fan control dial to the desired position.
4. Turn the temperature control dial to the desired position.

Defrosting or defogging

This mode directs the air to the defrost outlets to defrost/defog the windows.

1. Press the defrost/defog button  .


2. Turn the fan control dial to the desired position.
3. Turn the temperature control dial to the desired position between the middle and the hot position.

• To quickly remove ice or fog from the windows, turn the fan control dial to the highest setting and the temperature control to the full HOT position.
• When the  position is
  selected, the air conditioner automatically turns on (the indicator light on the button will remain in Off) if the outside temperature is more than 36°F (2°C). This dehumidifies the air which helps defog the windshield. The 
  mode automatically turns off, allowing outside air to be drawn into the passenger compartment to further improve the defogging performance. The recirculation mode cannot be activated in the 
  position.

Bi-level heating

The bi-level mode directs warmed air to the side and center vents and to the front and rear floor outlets.

1. Press the  button to the OFF
   position.
2. Press the  air flow control
   button.
3. Turn the fan control dial to the desired position.
4. Turn the temperature control dial to the desired position.

Heating and defogging

This mode heats the interior and defogs the windshield.

1. Press the  air flow control
   button.
2. Turn the fan control dial to the desired position.
3. Turn the temperature control dial to the desired position between the middle and the hot position.

• When the  position is
  selected, the air conditioner automatically turns on if the outside temperature is more than 36°F (2°C).

  The indicator light on the A/C button will remain in Off. This dehumidifies the air which helps defog the windshield. The 
  mode automatically turns off, allowing outside air to be drawn into the passenger compartment to further improve the defogging performance.

Operating tips

Clear snow and ice from the wiper blades and air inlet in front of the windshield. This improves heater operation.

Air conditioner operation (if so equipped)

Start the engine, turn the fan control dial to the desired position, and press the   button to
activate the air conditioner. When the  air conditioner is on, cooling and dehumidifying functions are added to the heater operation.

The air conditioner cooling function operates only when the engine is running.

Cooling

This mode is used to cool and dehumidify the air.

1. Press the  button to the OFF
   position.
2. Press the  air flow control
   button.
3. Turn the fan control dial to the desired position.
4. Press the  button. The
   indicator light comes on.
5. Turn the temperature control dial to the desired position.

• For quick cooling when the outside temperature is high, push the  button to
  the ON position. Be sure to return the 
  to the OFF position for normal cooling. MAX A/C may be used for quick cooling.

Dehumidified heating

This mode is used to heat and dehumidify the air.

1. Press the  button to the OFF
   position.
2. Press the  air flow control
   button.
3. Turn the fan control dial to the desired position.
4. Press the  button. The
   indicator light comes on.
5. Turn the temperature control dial to the desired position.

Dehumidified defogging

This mode is used to defog the windows and dehumidify the air.

1. Press the  air flow control
   button.
2. Turn the fan control dial to the desired position.

• When the  or
   are selected, the
  air conditioner automatically turns on (the indicator light may not illuminate) if the outside temperature is more than 36°F (2°C).

  This dehumidifies the air which helps defog the windshield. The  mode
  automatically turns off, allowing outside air to be drawn into the passenger compartment to further improve the defogging performance.

• The air conditioner is always on in 
  mode, regardless of whether the indicator light is on or off.

3. Turn the temperature control dial to the desired position.

Operating tips

• Keep the windows and moonroof closed while the air conditioner is in operation.
• After parking in the sun, drive for 2 or 3 minutes with the windows open to vent hot air from the passenger compartment. Then, close the windows. This allows the air conditioner to cool the interior more quickly.
• The air conditioning system should be operated for approximately 10 minutes at least once a month. This helps prevent damage to the system due to lack of lubrication.
• A visible mist may be seen coming from the ventilators in hot, humid conditions as the air is cooled rapidly. This does not indicate a malfunction.
• If the engine coolant temperature gauge indicates engine coolant temperature over the normal range, turn the air conditioner off. See “If your vehicle overheats” in the “In case of emergency” section of this manual.

Air flow charts

The following charts show the button and dial positions for MAXIMUM AND QUICK heating, cooling or defrosting. The air recirculation button should always be in the OFF position for heating and defrosting.