AMERICAN STANDARD/TRANE PRESSURE SWITCH 1.59" 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 premium HVAC pressure switch is a vital safety component designed for high-efficiency gas furnaces and air handling units. As a critical air proving switch, it monitors the pressure differential created by the draft inducer motor to ensure that exhaust gases are being safely vented before the ignition process begins. If the system detects a blockage or insufficient airflow, this switch acts as a fail-safe to prevent the furnace from operating under unsafe conditions. Rated at a precise 1.59" WC (Water Column), this durable replacement part is essential for restoring the reliable performance and safety of your heating system. It is an ideal solution for homeowners and technicians troubleshooting ignition failures or venting issues in residential HVAC 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 773-048 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 (773-048) 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 773-048 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 773-048 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.
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