RHEEM PRESSURE SWITCH 0.30" WC Air Pressure Switch, Air Proving
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Not sure this fits your furnace? Call us — we're happy to help
This high-performance Rheem Pressure Switch is a critical safety component designed for modern high-efficiency gas furnaces and HVAC systems. Functioning as an air-proving switch, it monitors the negative pressure created by the inducer blower motor to ensure that combustion gases are being properly vented before the ignition cycle begins. A failing pressure switch is a common cause of furnace ignition failure and heating system lockout; replacing a faulty sensor with this precise 0.30" WC (Water Column) switch helps restore safe and efficient operation. Engineered for reliability, this component protects your home by preventing the furnace from running if optimal airflow is not detected, ensuring all exhaust is safely directed out of the flue. It is an essential repair part for maintaining the integrity of high-efficiency heating units.
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 773-201 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 (773-201) 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 773-201 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 773-201 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.
6 more not shown. Check your own model number above.
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