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BCFurnace
3" HIGH LIMIT SWITCH L175-30F 3 High Limit Control Switches furnace part available in Vancouver, Burnaby, Port Moody, Langley, North Vancouver, Richmond, Maple Ridge, Delta, West Vancouver, New Westminster, Surrey, Coquitlam, Port Coquitlam, Pitt Meadows

3" HIGH LIMIT SWITCH L175-30F 3 High Limit Control Switches

BCFURNACE

543-175

$52.00

+5% Tax • Shipping calculated at checkout.

U.S. Duties/Taxes, if applicable, may be due at time of delivery.

Name

3" HIGH LIMIT SWITCH L175-30F

5units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Product Details

Description

Ensure the safety and efficiency of your home heating system with this professional-grade 3-inch furnace high limit switch. Designed as a critical safety component for residential gas and electric furnaces, this high-limit control monitors the internal temperature of the heat exchanger to prevent hazardous overheating. It acts as a thermal safeguard by automatically breaking the electrical circuit when the air temperature exceeds the designated limit, then resetting once the system has cooled sufficiently. This high-limit sensor is an essential replacement part for HVAC systems experiencing frequent cycling or safety-related shutdowns, ensuring reliable operation and peace of mind during the heating season.

Specifications

Type
Furnace High Limit Control Switch
Size
3-inch insertion depth
Dimensions
3 inches (probe depth)
Application
Residential gas furnaces, electric heating systems, and HVAC blower assemblies where internal temperature monitoring is required for safety.
Specifications
Opening Temperature: 175°F; Closing Temperature: 145°F; Temperature Differential: 30°F; Reset Type: Automatic; Sensor Type: Bimetal Disc; Mounting: Flange.

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Frequently Asked Questions

Is the 543-175 a genuine OEM part?
Yes, the 543-175 is a genuine OEM replacement part manufactured by BCFurnace. We source all 3 Limit Switches from authorized distributors to ensure exact-fit compatibility. This 3 Limit Switches is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
How do I know if the 543-175 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-175) with your furnace model number. Visit the BCFurnace page on our site and enter your model number in the search bar — our system will show all compatible 3 Limit Switches for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
How fast can I get the 543-175 shipped?
Most 3 Limit Switches including the 543-175 ship within 1–2 business days from our warehouse. We ship across Canada and the United States with tracking on every order. For urgent BCFurnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Can I pick up the 543-175 at your store?
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. 3 Limit Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 543-175 is in stock before visiting.

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