Lennox 73W36 Pressure Switch, 2 Stage, .50/.20
Manufacturer:
Manufacturer #:
73W36
Parts Town #:
LEN73W36
Units:
Each
Fits Models:
Lennox 73W36 Genuine OEM Replacement Part
A Lennox 73W36 Pressure Switch regulates pressure response by opening or closing contacts at set levels to keep the machine cycling as intended.
- Specifically designed for endurance, real OEM switches and buttons reduce premature wear for longer equipment life and more consistent performance
- Product Type: Pressure Switch
- Stage Count: 2
- Setpoint Min: 0.20
- Setpoint Max: 0.50
Common Questions and Answers
Why is the Lennox 73W36 Pressure Switch needed for consistent operation?
The pressure switch monitors pressure levels and confirms the proper draft or airflow conditions needed before the HVAC equipment proceeds through its operating stages. Its two-stage construction matters because it is designed to respond to specific pressure thresholds, which supports safer, more accurate performance and steadier cycling within the HVAC system.
What are some potential signs that the Lennox 73W36 Pressure Switch could be failing?
The pressure switch may be starting to fail if the heating and cooling equipment cycles inconsistently, does not advance properly through stages or shuts down when expected pressure conditions are not being confirmed. You might notice physical signs such as wear, corrosion or damaged tubing connections and environmental signs may include moisture, debris or residue around the switch that can affect pressure sensing.
Read More FAQs
How soon will my Lennox 73W36 Pressure Switch ship?
We offer same-day shipping on all in-stock real OEM heating and cooling parts Monday—Friday until 9 PM ET and on Saturday until 4 PM ET for online air orders. With updated inventory and streamlined processing, we'll ship your parts as soon as possible.
Can I track my Lennox 73W36 Pressure Switch after it ships?
Yes! View updates on your real OEM HVAC parts after shipping by visiting our Track My Order page and typing in your order number or purchase order (PO) number and zip code. With delivery details available in real time, it's easy to stay informed on how your shipment is progressing.
Does Parts Town provide customer assistance for the Lennox 73W36 Pressure Switch?
Yes! Parts Town offers a wide range of customer support for real OEM HVAC parts 8 AM to 9 PM ET Monday—Friday with chat, email and phone among the options. Go to our Contact Us page to learn how to reach a team member with any questions you might have.
Is the Lennox 73W36 Pressure Switch eligible for returns?
Of course! We provide the option to return most new, unopened real OEM heating and cooling replacement parts within 90 days of delivery, so go to our Returns page and see if your order qualifies. To find out which items are eligible, enter your sales order number and billing postal code.