AIR PRESSURE SWITCH 0.20" WC 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-quality HVAC Air Pressure Switch is a vital safety component designed for furnace and air handling systems. Functioning as an air proving switch, it ensures that your heating unit is operating safely by monitoring the airflow produced by the draft inducer motor. If the switch detects an obstruction or a failure in the venting process, it interrupts the ignition sequence to prevent hazardous conditions. Precisely calibrated to a 0.20" WC (Water Column) set point, this replacement part is essential for troubleshooting furnace startup issues, airflow errors, or pressure switch lockout codes. Durable and reliable, it helps restore peak performance and safety to your residential or light commercial heating equipment.
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 773-415 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 (773-415) 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 773-415 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 773-415 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.
196 more not shown. Check your own model number above.
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