Four Seasons 35703 HVAC Blower Control Switch

Four Seasons Selector Switch 35703

The Four Seasons 35703 HVAC blower control switch is a direct replacement selector switch for vehicles that use a 5-terminal, male, rectangular connector layout. Built to meet or exceed OEM requirements, it is specified for 20-amp blower control circuits and is suited for restoring reliable fan-speed selection in the HVAC system.

Four Seasons Selector Switch line components are built for service replacement applications where accurate electrical switching and OE-style fit are important. This blower switch is part of that product line and is intended for technicians and buyers looking for a dependable HVAC blower control switch for repair work on applications such as Ford F-150 and Chevrolet Silverado service vehicles where the correct selector switch configuration is required.

Key Features

• HVAC blower control switch for selector and blower functions
• 20-amp amperage rating for blower circuit use
• 5-terminal design with male, rectangular connector
• Meets or exceeds OEM specifications
• Direct replacement part number 35703
• Cross-references UAC SW2400C for the same application

Detailed Description

The Four Seasons 35703 is an HVAC blower control switch used to select fan speeds in the climate control system. Its 5-terminal, male, rectangular connector configuration supports straightforward replacement when the original switch shows wear, intermittent operation, or electrical failure. As an OE-spec replacement, it is built for consistent switching performance in blower control circuits rated at 20 amps.

For buyers searching for a blower switch replacement for Ford F-150, Chevrolet Silverado, or other vehicles using this selector switch style, part number 35703 provides a focused solution. The Four Seasons Selector Switch line is positioned for repair applications where the original electrical interface and control feel need to be restored without changing the HVAC system design.

What It Helps Fix

• Blower motor only working on certain speed settings
• Intermittent HVAC fan operation
• No response when turning the blower selector
• Worn or damaged switch contacts
• Electrical connection issues at the HVAC control head

Installation Notes and Tips

Verify the connector shape, terminal count, and amperage rating before installation. Match the original switch style to the vehicle’s HVAC control layout and confirm the replacement part number 35703 against the removed component. Inspect the connector for heat damage, corrosion, or loose terminals before installing the new switch.

For best results, compare the original blower control switch to the replacement before reassembly. This helps confirm proper terminal orientation and connector fit on applications such as Ford F-150 and Chevrolet Silverado HVAC repair jobs.

Quality Assurance

This part meets or exceeds OEM requirements and is backed by Four Seasons manufacturing standards for HVAC service replacement components.