Airswitch Safety Interlock Pressure Switch, SPST, Normally Open Air Pressure Switch, Air Proving
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Pickup available at 75 Blue Mountain St #3
Usually ready in 24 hours
Not sure this fits your furnace? Call us — we're happy to help
This high-performance Airswitch Safety Interlock Pressure Switch is a critical safety component designed for modern gas furnaces and heating systems. Functioning as an air-proving switch, it monitors the draft created by the inducer fan motor to ensure proper ventilation of combustion gases before the ignition sequence begins. Featuring a Single Pole Single Throw (SPST) configuration that is Naturally Open (NO), the switch closes its contacts once the required pressure threshold is reached, signaling the furnace control board that it is safe to proceed with heating. If your HVAC system is failing to ignite or displaying a pressure switch lockout error, this reliable replacement part is essential for restoring safe and efficient operation. Engineered for precision and durability, it serves as a vital safeguard against venting failures, blocked flues, and restricted airflow.
Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.
1-778-759-9864Mon–Sat 8AM–5PM PT · Or email parts@bcfurnace.com
Compatible parts and related replacements
Yes, the 000-816 is a genuine OEM, or a factory replacement manufacturer approved part. We source all Air Pressure Switches from authorized distributors to ensure exact-fit compatibility. This Air Pressure Switch is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
The easiest way is to match the part number (000-816) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible Air Pressure Switches for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
Most Air Pressure Switches including the 000-816 ship within 1–2 business days from our warehouse. We ship across Canada and the United States, and worldwide, with tracking on every order. For urgent furnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. Air Pressure Switches orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 000-816 is in stock before visiting.
Still not sure this is the right part? Call 1-778-759-9864 and we will check your model number with you.
The model number is on the rating plate inside the furnace door.
214 more not shown. Check your own model number above.
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