Round 3-Speed Switch | 4-Prong Fan Switch for Wood Stove Blowers | Part #4S3SPR

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SKU: E16
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Round 3-Speed Switch (4S3SPR) – 4-Prong Fan Switch for Wood Stove Blowers

Restore Full Fan Control – Round 3-Speed Blower Switch (4-Prong)

Upgrade or replace your stove's blower control with this round 3-speed switch (4S3SPR). Designed for use with 3-speed blower motors, this 4-prong switch features 4 positions—Off, Low, Medium, and High—giving you flexible control over airflow and comfort. Compatible with multiple stove brands including Blue Ridge, Carolina, Treemont, and Country Flame, this universal-fit switch provides a reliable and easy-to-install solution for restoring or improving your fan system.

Key Features:
• 4-Position Control – Easily switch between Off, Low, Medium, and High fan speeds
• Round Design – Compact form for easy integration with panel cutouts
• 4-Prong Terminal – Standard wiring configuration for 3-speed blower motors
• Multi-Brand Fit – Compatible with several popular wood stove models

Specifications:
• Part Number: 4S3SPR
• Type: Round 3-speed fan switch
• Terminals: 4-prong 3/16"
• Switch Positions: Off / Low / Medium / High
• Dimensions: 1 1/8" diameter
• OEM Status: Aftermarket replacement (Treemont part)

Compatible Models & Brands:
Blue Ridge Stoves
Carolina Stoves
• Challenge I, II, III
• Carolina I & II
• Carolina Spirit
• LE41
• LE50
Country Flame: Treemont
Buck, Treemont, and other wood stove brands with 3-speed blowers

Pairs well with: Replacement Electrical Parts

Why Choose Our 3-Speed Switch?
Bring back full control to your stove's blower motor with this durable, easy-to-install 3-speed fan switch. Whether you’re replacing a worn-out part or upgrading your control system, this switch ensures smooth, multi-speed operation and long-lasting reliability.

Installation Instructions:

Always disconnect power to the stove before servicing electrical components. Ensure the stove and blower assembly are completely cool.

Remove the stove’s rear or side access panel to access the blower switch. Locate the existing switch and carefully note the wire positions. Taking a photo of the wiring before removal is recommended.

Disconnect the wires from the old switch terminals. Compare the terminal layout of the new 4-prong 3-speed switch to the old one to confirm proper orientation.

Connect each wire to the corresponding terminal on the new switch for Off, Low, Medium, and High speed settings. Make sure all connections are tight and secure.

Before reinstalling the access panel, restore power briefly and test the blower in each switch position to confirm correct operation. Once verified, turn power off again, reinstall the access panel, and secure all fasteners.

Restore power and operate the blower normally.

Installation tip: Wiring colors and terminal positions may vary by stove manufacturer. Always follow the wiring diagram in your stove’s owner or service manual when available.

Helpful Installation Videos:

General 3-speed blower switch wiring overview:
https://www.youtube.com/watch?v=Fq0RXl5pjvw

Wood stove and fireplace blower switch installation example:
https://www.youtube.com/watch?v=JBOF_-Jp8ZE

These videos demonstrate typical 3-speed blower switch wiring and operation. While they may not reference this exact part number, the installation process and terminal layout are the same for most 4-prong 3-speed blower switches.

BrandCARLING TECHNOLOGIES
Manufacturer Part Number700-BL
Series700
AC Contact Rating2 A @ 250 V; 4 A @ 125 V
Contact FormSP3T
DC Contact Rating1 A @ 125 V
Number of Connections4
Number of Positions4
Operating Temperature - Maximum185 °F
Operating Temperature - Minimum32 °F
Panel Mounting Hole Diameter1/2 in
Stem Diameter0.47 in
Stem Length0.46 in
Stem Thread Size15/32"-32
Stem Thread TypeUNS
Switch FunctionOff/On/On/On
Terminal Connection TypeSolder Lug
UNSPSC39121513
Country of OriginMexico (subject to change)
Product Description

These single-pole rotary switches support one circuit. Electrical rotary switches have knobs that turn and stop in different positions to control various circuits or functions.