1-778-759-9864
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BCFurnace
3" HIGH LIMIT SWITCH L230-30F 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 L230-30F 3 High Limit Control Switches

BCFURNACE

543-040

CA$87.45

+5% Tax • Shipping calculated at checkout.

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

Name

3" HIGH LIMIT SWITCH L230-30F

5units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Product Details

Description

This 3-inch High Limit Switch L230-30F is a vital safety component designed for residential and commercial heating systems. Functioning as a thermal cutout, this switch monitors the internal temperature of your furnace or air handler to prevent dangerous overheating. If the heat exchanger reaches the critical threshold of 230°F, the switch automatically opens to break the electrical circuit and shut down the burners, protecting your HVAC equipment from damage. Once the unit cools by 30°F, the switch resets to allow for normal operation. This replacement limit control is an essential part for maintaining the safety and performance of forced-air gas furnaces. If your heating system is short-cycling or failing to stay lit, a faulty safety sensor may be the cause, and this reliable L230-30F switch ensures your system stays within safe thermal parameters.

Specifications

Type
Furnace High Limit Control Switch
Size
3-inch insertion depth
Dimensions
3 in
Application
Used as a safety limit control in gas furnaces and forced-air heating systems to monitor heat exchanger temperatures.
Specifications
Temperature Limit: Opens at 230°F; Differential: 30°F (Closes at 200°F); Automatic reset; Single-pole, single-throw (SPST) configuration.

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Frequently Asked Questions

Is the 543-040 a genuine OEM part?
Yes, the 543-040 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 543-040 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-040) 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 543-040 shipped?
Most 3 Limit Switches including the 543-040 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 543-040 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 543-040 is in stock before visiting.

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