1. Product Overview
This manual provides instructions for the NOVAPARTS 599199 Heater A/C Dual Climate Control Switch. This unit is designed to replace the original HVAC control panel in specific Buick Century and Buick Regal models, restoring proper climate control functionality.
Figure 1: Front view of the NOVAPARTS 599199 Heater A/C Dual Climate Control Switch, showing fan speed, temperature sliders, and mode selection.
1.1 Compatibility
This climate control switch is compatible with the following vehicle models:
- 2000-2005 Buick Century (Custom, Limited, Special Edition) with 3.1L V6 - Gas engine
- 2000-2004 Buick Regal (GS, LS, GSE, LSE) with 3.8L V6 - Gas engine
Figure 2: Visual representation of compatible Buick models with the climate control unit.
1.2 Replaces Part Numbers
This unit is a direct replacement for the following original equipment (OE) part numbers:
- 10308120
- 10447470
- 599199
- 599-199
- 9359814
- 9384734
- 1572734
- 09384734
Figure 3: Back view of the control unit highlighting the OE part numbers it replaces.
2. Installation (Setup)
Installation of the Heater A/C Dual Climate Control Switch requires basic automotive knowledge and tools. If you are not comfortable performing this installation, it is recommended to seek assistance from a qualified automotive technician.
2.1 Pre-Installation Checklist
- Ensure the vehicle's ignition is off and the battery is disconnected to prevent electrical shorts.
- Verify that the replacement unit (NOVAPARTS 599199) matches the original unit in terms of connectors and physical dimensions.
- Gather necessary tools, which may include a trim removal tool, screwdrivers, and a socket set.
2.2 Installation Steps (General Guide)
- Carefully remove the trim panels surrounding the existing climate control unit. Use a plastic trim removal tool to avoid scratching surfaces.
- Unscrew any fasteners securing the old climate control unit.
- Gently pull the old unit out of the dashboard.
- Disconnect all electrical connectors from the rear of the old unit. Note the position of each connector if they are not unique.
- Connect the electrical harnesses to the corresponding ports on the new NOVAPARTS 599199 unit. Ensure connections are secure.
- Slide the new unit into the dashboard opening and secure it with the fasteners.
- Reinstall the trim panels.
- Reconnect the vehicle battery.
- Test the functionality of the new climate control unit.
Figure 4: Rear view of the control unit, illustrating the various electrical connector ports for installation.
Video 1: An overview of the 599199 Heater A/C Dual Climate Control Switch, demonstrating its physical features and connectors. This video is provided by NOVAPARTS.
Video 2: A detailed look at the A/C Dual Control Panel 599199, including its connectors and how the controls operate. This video is provided by JISU AUTO PARTS.
3. Operating Instructions
The NOVAPARTS 599199 climate control switch features intuitive controls for managing your vehicle's heating, ventilation, and air conditioning system.
Figure 5: Front panel of the climate control unit with all operational elements clearly visible.
3.1 Fan Speed Control
- The left rotary knob controls the fan speed.
- Rotate the knob clockwise to increase fan speed (LO to HI).
- Rotate counter-clockwise to decrease fan speed.
- Turn to 'OFF' to completely shut off the fan.
Figure 6: Detailed view of the fan speed control knob.
3.2 Temperature Control
- Two vertical sliders control the temperature for the driver and passenger sides independently.
- Slide the control towards the red (HI) for warmer air.
- Slide the control towards the blue (LO) for cooler air.
3.3 Air Distribution Mode Control
- The right rotary knob selects the air distribution mode.
- Available modes typically include: VENT (dashboard vents), BI-LEV (bi-level, dashboard and floor vents), HTR (heater, floor vents), BLEND (blend of defrost and floor), and DEF (defrost, windshield vents).
Figure 7: Detailed view of the air distribution mode knob and temperature sliders.
3.4 A/C (Air Conditioning) Button
- Press the 'A/C' button to activate or deactivate the air conditioning system. An indicator light typically illuminates when A/C is active.
3.5 Rear Defrost Button
- Press the 'REAR' button to activate or deactivate the rear window defroster. An indicator light typically illuminates when active.
4. Maintenance
The NOVAPARTS 599199 Heater A/C Dual Climate Control Switch is designed for durability and requires minimal maintenance. Regular vehicle maintenance, including checking the HVAC system, is recommended.
- Keep the control panel clean by wiping it with a soft, damp cloth. Avoid abrasive cleaners or solvents.
- Ensure no liquids are spilled onto the unit.
- Periodically check the electrical connections for any signs of corrosion or looseness.
5. Troubleshooting
If you experience issues with your climate control unit, consider the following common troubleshooting steps:
- No Power/Unit Not Responding: Check the vehicle's fuses related to the HVAC system. Ensure all electrical connectors are securely attached to the back of the unit.
- Incorrect Air Temperature: Verify that the temperature sliders are set correctly for both driver and passenger. Ensure the A/C system is charged and functioning if cold air is not produced.
- Fan Not Working: Check the fan speed knob setting. If the fan still does not operate, there may be an issue with the blower motor or resistor, which are separate components from this control unit.
- Air Not Directing Correctly: Ensure the air distribution mode knob is set to the desired position. Issues with blend doors or actuators may require professional diagnosis.
For persistent issues, it is advisable to consult a certified automotive technician for proper diagnosis and repair.
6. Specifications
| Feature | Specification |
|---|---|
| Operation Mode | Manual |
| Current Rating | 1 Amps |
| Operating Voltage | 12 Volts |
| Contact Type | Normally Open |
| Connector Type | Plug In |
| Item Dimensions (L x W x H) | 3.54 x 11.02 x 4.72 inches |
| Item Weight | 14.7 ounces |
| Control Type | Climate Control |
| Color | Black |
| Material | Copper (Contact Material) |
7. Warranty and Support
7.1 Warranty Information
The NOVAPARTS 599199 Heater A/C Dual Climate Control Switch comes with a 180-day warranty from the date of purchase. This warranty covers manufacturing defects and ensures a free replacement if the product experiences any problems within this period.
Please retain your proof of purchase for warranty claims.
7.2 Customer Support
For any questions, concerns, or assistance with installation or troubleshooting, please contact NOVAPARTS customer support. We are committed to providing professional answers and typically respond to inquiries within 24 hours.
You can find contact information on the official NOVAPARTS store page or through your purchase platform.
