1-778-759-9864
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BCFurnace
3" HIGH LIMIT SWITCH L190-30F 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 L190-30F 3 High Limit Control Switches

BCFURNACE

543-025

CA$229.03

+5% Tax • Shipping calculated at checkout.

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

Name

3" HIGH LIMIT SWITCH L190-30F

2units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Product Details

Description

The 3" High Limit Switch L190-30F is a critical safety component designed for residential and commercial HVAC systems and forced-air furnaces. This thermal limit control monitors the heat levels within the appliance's plenum or heat exchanger, acting as a failsafe to prevent overheating. If the temperature exceeds safe operating limits, the switch automatically opens the circuit to shut down the heating element or burner. Featuring an L190-30F calibration, this switch is engineered to trip at 190°F and reset once the temperature cools by 30°F (closing at 160°F). Replacing a malfunctioning high limit sensor is essential for restoring proper heating cycles and protecting your furnace from internal damage. This part is a standard solution for technicians and homeowners looking to fix heating units that are short-cycling or failing to stay on due to safety trips.

Specifications

Type
High Limit Control Switch
Size
3-inch
Application
HVAC systems, gas furnaces, electric heaters, and central heating units requiring thermal safety monitoring.
Specifications
Opening Temperature: 190°F; Temperature Differential: 30°F (Closes at 160°F); Reset Type: Automatic; Sensor Type: 3-inch insertion probe.

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Frequently Asked Questions

Is the 543-025 a genuine OEM part?
Yes, the 543-025 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 543-025 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (543-025) 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 543-025 shipped?
Most 3 Limit Switches including the 543-025 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 543-025 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 543-025 is in stock before visiting.

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