Introduction
This manual provides comprehensive instructions for the installation, operation, maintenance, and troubleshooting of the Standard Motor Products HS-505 A/C and Heater Blower Motor Switch. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the product.
The HS-505 is an electronic switch designed for controlling the A/C and heater blower motor in compatible vehicles. It features a robust design and is manufactured to meet automotive industry standards.
Setup and Installation
Important Note on Compatibility: While the HS-505 is designed for specific vehicle applications, it is crucial to verify compatibility with your vehicle's existing wiring harness. Some vehicles, particularly certain 1995 Chevrolet/GMC truck models, may have variations in their A/C and heater control units (e.g., two-plug back instead of one-plug). The HS-505 typically features a single connection point. Ensure your vehicle's harness matches this configuration or acquire a compatible adapter if necessary.
What's in the Box:
- 1 x Standard Motor Products HS-505 Blower Motor Switch
Installation Steps:
- Safety First: Before beginning installation, disconnect the vehicle's battery to prevent electrical shorts or damage.
- Access the Existing Switch: Locate and carefully remove the dashboard trim panels and fasteners that secure the existing A/C and heater control unit. Refer to your vehicle's service manual for specific instructions on accessing this component.
- Disconnect Wiring: Gently disconnect all electrical connectors from the old blower motor switch. Note the orientation and position of each connector if there are multiple.
- Remove Old Switch: Unfasten and remove the old blower motor switch from its mounting location.
- Install New Switch: Position the Standard Motor Products HS-505 switch into the dashboard opening. Ensure it aligns correctly with the mounting points.
- Connect Wiring: Carefully connect the vehicle's electrical harness to the HS-505 switch. Ensure all connections are secure and properly seated.
- Test Functionality (Before Reassembly): Reconnect the vehicle's battery. Turn the ignition to the 'ON' position (do not start the engine) and test the functionality of the A/C and heater blower motor switch. Verify that all fan speeds and temperature controls operate as expected.
- Reassemble: Once functionality is confirmed, reassemble all dashboard trim panels and secure them with their fasteners.
- Final Check: Start the vehicle and perform a final check of the A/C and heater system.
Image: The Standard Motor Products HS-505 A/C and Heater Blower Motor Switch. This image displays the front panel of the switch unit, featuring three rotary knobs and two push buttons. From left to right, the first knob controls fan speed (OFF, LO, HI), the second knob controls temperature (blue for cool, red for warm), and the third knob controls air distribution (various vent settings, including defrost). Below the temperature knob is a recirculation button, and below the air distribution knob is an A/C button. The unit is black with white markings and gray knobs.
Operating Instructions
The HS-505 A/C and Heater Blower Motor Switch provides intuitive control over your vehicle's climate system. Familiarize yourself with the controls:
- Fan Speed Control Knob (Left):
- Turn this knob to select the desired blower fan speed: OFF (fan off), LO (low speed), HI (high speed), and intermediate settings.
- Temperature Control Knob (Middle):
- Rotate this knob to adjust the temperature of the air. Turn towards the blue section for cooler air and towards the red section for warmer air.
- Air Distribution Control Knob (Right):
- This knob directs the airflow to different vents in the vehicle. Common settings include:
- Face vents
- Floor vents
- Defrost (windshield)
- Bi-level (face and floor)
- This knob directs the airflow to different vents in the vehicle. Common settings include:
- Recirculation Button (Below Temperature Knob):
- Press this button to recirculate the air inside the cabin, preventing outside air from entering. This can help cool or heat the cabin more quickly.
- A/C Button (Below Air Distribution Knob):
- Press this button to engage or disengage the air conditioning compressor. The A/C system cools and dehumidifies the air.
Maintenance
The Standard Motor Products HS-505 Blower Motor Switch is designed for durability and requires minimal maintenance. However, following these guidelines can help ensure its long-term performance:
- Regular Cleaning: Periodically wipe the surface of the switch with a soft, dry cloth to remove dust and grime. Avoid using harsh chemicals or abrasive cleaners, which can damage the finish or markings.
- Inspect Connections: If you experience intermittent issues, it may be beneficial to inspect the electrical connections to the switch for looseness or corrosion. This should only be done by a qualified technician or with proper safety precautions (battery disconnected).
- Avoid Force: Do not apply excessive force when operating the knobs or buttons. They are designed for smooth operation.
- Professional Inspection: If you suspect any internal issues with the switch, it is recommended to have it inspected by a certified automotive technician.
Troubleshooting
If you encounter issues with your HS-505 A/C and Heater Blower Motor Switch, consider the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Blower motor does not operate at any speed. |
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| Blower motor only works on high speed. |
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| A/C does not engage when button is pressed. |
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| Switch does not fit or harness connections are different. |
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For complex issues or if the above solutions do not resolve the problem, it is recommended to seek assistance from a qualified automotive technician.
Specifications
| Model Number | HS-505 |
| Product Type | Electronic Switch |
| Brand | Standard Motor Products |
| Current Rating | 20 Amps |
| Operating Voltage | 5 Volts |
| Contact Type | Normally Open |
| Terminal Type | Screw |
| Circuit Type | 1-way |
| Mounting Type | Surface Mount |
| Actuator Type | Push Button |
| Contact Material | Copper |
| International Protection Rating | IP54 |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Item Dimensions (L x W x H) | 7.6 x 4.1 x 8.7 inches |
| Item Weight | 10.1 ounces |
| Country of Origin | China |
Warranty Information
Standard Motor Products typically offers a limited warranty on their automotive parts, covering defects in material and workmanship under normal use and service. The specific terms and duration of the warranty may vary. Please retain your proof of purchase for warranty claims.
For detailed warranty information, please refer to the documentation included with your purchase or visit the official Standard Motor Products website.
Customer Support
If you require further assistance, have questions regarding installation, or need to troubleshoot an issue not covered in this manual, please contact Standard Motor Products customer support.
Standard Motor Products Contact Information:
- Visit the official Standard Motor Products website for contact details, FAQs, and additional resources.
- Refer to the packaging or included documentation for specific customer service phone numbers or email addresses.
When contacting support, please have your product model number (HS-505) and purchase information readily available.
