1-778-759-9864
Canada (CAD $) flagCanada (CAD $)
BCFurnace
YORK PRESSURE SWITCH -0.85`WC Air Pressure Switch, Air Proving 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

YORK PRESSURE SWITCH -0.85`WC Air Pressure Switch, Air Proving

BCFURNACE

773-178

CA$89.87

+5% Tax • Shipping calculated at checkout.

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

Name

YORK PRESSURE SWITCH -0.85`WC

1units available

Pickup available at 75 Blue Mountain St #3

Usually ready in 24 hours

Secure Payment
Fast Delivery
Local Pickup

Product Details

Description

This premium York air pressure switch is a critical safety component designed for high-efficiency gas furnaces and HVAC systems. As an air proving switch, its primary function is to monitor the negative pressure created by the draft inducer motor, ensuring that combustion gases are safely vented out of the heat exchanger before the ignition sequence starts. If your heating system is experiencing startup failures or cycling issues related to airflow detection, replacing a faulty switch with this -0.85" WC rated component is essential for restoring reliable performance. Engineered for durability and precision, this part helps prevent furnace operation under unsafe conditions, protecting your home and maximizing equipment longevity.

Specifications

Type
Air Pressure Switch
Size
Standard furnace component
Application
Used in residential and commercial gas furnaces and heating units to verify proper venting and blower operation during the ignition cycle.
Specifications
Pressure Setting: -0.85" WC (Water Column); Type: Air Proving Switch; Functionality: Diaphragm-actuated safety sensor

You Might Also Like

Compatible parts and related replacements

Browse all parts
YORK PRESSURE SWITCH -0.75" WC Air Pressure Switch, Air Proving 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

773-152

YORK PRESSURE SWITCH -0.75" WC Air Pressure Switch, Air Proving

CA$112.24
YORK PRESSURE SWITCH -0.45" WC Air Pressure Switch, Air Proving 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

773-027

YORK PRESSURE SWITCH -0.45" WC Air Pressure Switch, Air Proving

CA$81.73
YORK PRESSURE SWITCH -0.20" WC Air Pressure Switch, Air Proving 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

773-146

YORK PRESSURE SWITCH -0.20" WC Air Pressure Switch, Air Proving

CA$85.63
YORK PRESSURE SWITCH 0.67" WC Air Pressure Switch, Air Proving 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

773-144

YORK PRESSURE SWITCH 0.67" WC Air Pressure Switch, Air Proving

CA$152.12
YORK PRESSURE SWITCH 0.20" WC Air Pressure Switch, Air Proving 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

773-186

YORK PRESSURE SWITCH 0.20" WC Air Pressure Switch, Air Proving

CA$84.87
YORK PRESSURE SWITCH -0.90" WC Air Pressure Switch, Air Proving 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

773-204

YORK PRESSURE SWITCH -0.90" WC Air Pressure Switch, Air Proving

CA$74.97
YORK PRESSURE SWITCH 0.45" WC / 0.85" WC Air Pressure Switch, Air Proving 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

773-180

YORK PRESSURE SWITCH 0.45" WC / 0.85" WC Air Pressure Switch, Air Proving

CA$227.69
YORK PRESSURE SWITCH -0.75" WC Air Pressure Switch, Air Proving 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

773-022

YORK PRESSURE SWITCH -0.75" WC Air Pressure Switch, Air Proving

CA$89.87
YORK PRESSURE SWITCH 0.40" WC Air Pressure Switch, Air Proving 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

773-006

YORK PRESSURE SWITCH 0.40" WC Air Pressure Switch, Air Proving

CA$110.18
YORK PRESSURE SWITCH 0.90" WC Air Pressure Switch, Air Proving 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

773-203

YORK PRESSURE SWITCH 0.90" WC Air Pressure Switch, Air Proving

CA$68.86
3" CAMSTAT ADJUSTABLE FAN OFF TEMPERATURE F90-F120 AND LIMIT SWITCH UPGRADE 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

543-503

3" CAMSTAT ADJUSTABLE FAN OFF TEMPERATURE F90-F120 AND LIMIT SWITCH UPGRADE 3 High Limit Control Switches

CA$261.03
NUTECH, LIFEBREATH DIGITAL ELECTRONIC TIMER D.E.T. 99-104 (OBSOLETE, REPLACEMENT AVAILABLE) Electrical, Transformers, Relay 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

872-053

NUTECH, LIFEBREATH DIGITAL ELECTRONIC TIMER D.E.T. 99-104 (OBSOLETE, REPLACEMENT AVAILABLE) Electrical, Transformers, Relay

CA$65.80
BLOWER BEARINGS ECCENTRIC 3/4" (PER PAIR) Blower Belts, Shaft, Pulley, Bearing 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

235-200

BLOWER BEARINGS ECCENTRIC 3/4" (PER PAIR) Blower Belts, Shaft, Pulley, Bearing

CA$89.20
YORK CONTROL BOARD SIMPLICITY ELITE MILLENNIUM Control Board, Circuit, Ignition Modulating 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

121-438

YORK CONTROL BOARD SIMPLICITY ELITE MILLENNIUM Control Board, Circuit, Ignition Modulating

CA$5,325.24
3/4" PEX RING Copper Fittings 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

263-019

3/4" PEX RING Copper Fittings

CA$0.83
TRANE PRESSURE SWITCH -0.90" WC Air Pressure Switch, Air Proving 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

773-163

TRANE PRESSURE SWITCH -0.90" WC Air Pressure Switch, Air Proving

CA$105.29
YORK LUXAIRE COLEMAN HOT SURFACE IGNITOR 120V Hot Surface Ignitors 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

468-704

YORK LUXAIRE COLEMAN HOT SURFACE IGNITOR 120V Hot Surface Ignitors

CA$160.96
LENNOX/ARMSTRONG/DUCANE/AIRE FLO HOT SURFACE IGNITOR 120V Hot Surface Ignitors 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

468-007

LENNOX/ARMSTRONG/DUCANE/AIRE FLO HOT SURFACE IGNITOR 120V Hot Surface Ignitors

CA$181.27
ARMSTRONG LENNOX DUCANE DRAFT INDUCER BLOWER MOTOR 2 STAGE 1/20HP 115V Inducer Motor, Assembly, Venter, Draft, Exhaust Fan Fasco, Combustion Air Blower 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

463-126

ARMSTRONG LENNOX DUCANE DRAFT INDUCER BLOWER MOTOR 2 STAGE 1/20HP 115V Inducer Motor, Assembly, Venter, Draft, Exhaust Fan Fasco, Combustion Air Blower

CA$745.79
GOODMAN AMANA CONTROL BOARD Control Board, Circuit, Ignition Modulating 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

446-058

GOODMAN AMANA CONTROL BOARD Control Board, Circuit, Ignition Modulating

CA$637.23
SUPERHOT BOILER ZONE CONTROL BOARD INC. E, N & PS MODELS Control Board, Circuit, Ignition Modulating 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

446-000

SUPERHOT BOILER ZONE CONTROL BOARD INC. E, N & PS MODELS Control Board, Circuit, Ignition Modulating

CA$712.89

Frequently Asked Questions

Is the 773-178 a genuine OEM part?
Yes, the 773-178 is a genuine OEM replacement part manufactured by BCFurnace. We source all Air Pressure Switches from authorized distributors to ensure exact-fit compatibility. This Air Pressure 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 773-178 is compatible with my BCFurnace furnace?
The easiest way is to match the part number (773-178) 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 Air Pressure 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 773-178 shipped?
Most Air Pressure Switches including the 773-178 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 773-178 at your store?
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 773-178 is in stock before visiting.

Looking for more Air Pressure Switches?

Browse Air Pressure SwitchesSearch Air Pressure Switches