Michel & Siso are very knowledgeable and explain everything to where I could understand! Amazing experience! Thank you will always come here for any AC needs. Trustworthy and excellent customer service.
Verified Customer
4.9/5 based on 4750 reviews
Trane SWT03623 Switch - Low Pressure Cutout, 250 Open | Refrigerant
Trane SWT03623 Switch - Low Pressure Cutout, 250 Open | Refrigerant
Low stock: 6 left
Trane SWT03623 Switch - Low Pressure Cutout, 250 Open
Please visit our store for pick up.
safe & secure Checkout
Specifications
Specifications
description
description
Genuine Trane & American Standard SWT03623 Low Pressure Cutout Switch
Protect your air conditioning or refrigeration compressor from catastrophic failure due to low refrigerant pressure with the Trane SWT03623 cutout switch. This is a critical safety component that automatically shuts down the compressor when the pressure drops below a safe threshold, preventing overheating and inadequate lubrication. It is designed as a direct OEM replacement for various Trane and American Standard units.
Key Performance Features:
- Compressor Protection: Safeguards the most expensive component of an AC system by halting operation when refrigerant pressure is too low.
- Automatic Reset: Once pressure returns to a safe level, the switch automatically resets itself, restoring system operation.
- Precision Actuation: Factory-set to open at 250 PSIG (Pounds per Square Inch Gauge) to ensure proper safety thresholds are met.
- Broad System Compatibility: Used across a wide range of Trane commercial and residential AC systems (THC, YSC, TSC models).
Product Specifications:
- Type: Low Pressure Cut Out Switch
- Pressure Setting: 250 PSIG open
- Actuation Pressure: 55 PSI +/- 5 PSI
- Reset Pressure: 35, +/- 5 PSI
- Brand: Trane
- Contact Configuration: SPST
- Current Rating: 8A
- Number of Poles: 1
- Pressure Rating: -0.5 to 45 Bar Operating, 300 Bar Burst
- Shipping Weight: 0.186
- Terminal Type: Lead Wire
- Type: Cartridge Control, Low, Small Disc
Cross-Reference & Compatibility for the SWT03623 directly replaces or cross-references with these part numbers:
Trane / American Standard:
- SWT3623
- TRNSWT03623
Troubleshooting Guide:
- Symptom: AC unit shuts down on a hot day, and the compressor is hot to the touch.
- This is often due to low refrigerant levels, which causes the SWT03623 to trip.
- Safety Warning: A tripping low pressure switch nearly always indicates a refrigerant leak or another system issue. Replacing the switch will not fix the underlying problem. A licensed technician must recover refrigerant and repair the leak before charging the system.
- Pro Tip: This switch has lead wires for connection and an automatic reset feature, so you won't find a button to press on the switch itself.
Compatible Trane & American Standard Series:
- TSC102H Series: Covers all H3, H4, and HWR configurations.
- YSC102H Series: Covers all High-Efficiency Gas/Electric rooftop units.
Key Model Prefixes:
- TSC102H3R / TSC102H4R
- YSC102H3E / YSC102H4E
- YSC102H3R / YSC102H4R
- YSC102HWR / TSC102HWR
Specification
Specification
Refund policy
Refund policy
Refund & Return Policy
Last Updated: June 2026
At HVAC Parts & Equipment Depot, customer satisfaction is important to us. This Refund & Return Policy explains how returns, exchanges, and refunds are handled for purchases made through TopHVACParts.com.
Return Eligibility
We accept returns within 30 days of delivery.
To qualify for a return:
- The item must be unused, uninstalled, and in its original condition.
- The item must be returned in its original packaging.
- Model numbers and serial numbers must match the original purchase records.
- Proof of purchase or order confirmation is required.
Non-Returnable Items
The following items are not eligible for return or refund:
- Installed or used parts.
- Products showing signs of installation, modification, or damage caused after delivery.
- Items missing original packaging.
- Sale or clearance items.
- Special-order or custom-order products.
- Returns requested more than 30 days after delivery.
Restocking Fee
Approved returns may be subject to a 20% restocking fee.
The restocking fee will be deducted from the refund amount after the returned item has been inspected and approved.
Damaged, Defective, or Incorrect Items
If you receive a damaged, defective, or incorrect item, please contact us within 7 days of delivery.
Email: support@tophvacparts.com
Phone: (214) 734-5222
We may request photographs and additional information to help process your claim.
If the claim is approved, we will provide a replacement, exchange, or refund at no additional cost to you.
Exchanges
We replace items only if they are defective, damaged upon arrival, or incorrectly shipped.
To request an exchange, contact us at:
Refund Process
Once your return is received and inspected, we will notify you by email regarding approval or rejection of your refund request.
If approved:
- Refunds will be issued to the original payment method.
- Processing typically takes 7–14 business days after approval.
- Your financial institution may require additional time before the refund appears in your account.
Return Shipping
Customers are responsible for return shipping costs unless the return is the result of:
- Our shipping error,
- A defective product,
- A damaged product received upon delivery.
Original shipping charges are non-refundable.
We recommend using a trackable shipping service and purchasing shipping insurance for higher-value items.
Return Address
HVAC Parts & Equipment Depot
1135 E Plano Parkway, Suite 8
Plano, TX 75074
United States
Professional Installation Notice
Many HVAC products require installation by a licensed HVAC professional.
HVAC Parts & Equipment Depot is not responsible for damages resulting from improper installation, misuse, unauthorized modifications, or failure to follow manufacturer instructions.
Special Orders
Special-order products must be picked up within 30 days of purchase unless other arrangements have been approved.
Unclaimed special-order products may be returned to the manufacturer and may be subject to applicable restocking fees.
Contact Us
If you have questions regarding returns, refunds, or exchanges, please contact us:
HVAC Parts & Equipment Depot
Phone: (214) 734-5222
Email: support@tophvacparts.com
Verified Customer
Happy Shouts From Our Thrilled Customers
William Bartlett
Cecil really saved me with troubleshooting tips over the phone. Thought I was going to have to replace the blower motor and ended up only needing a motor run capcitor. Thank you and God bless!
Verified Buyer
Riley Connolly
Cecil and Fidel were absolutely amazing and so helpful. We were happy they were open on Sunday, but was impressed with their knowledge and willingness to make sure we had everything we needed. If you need parts or service or install, I would recommend.
Verified Buyer
Cole Meger
Our AC went out during the hottest stretch of summer, and with a one-year-old at home, we were desperate for a quick fix. These guys came through big time — not only did they source the part faster than anyone else in the area, they also walked me through DIY troubleshooting while I waited. Trustworthy, knowledgeable, and run by a solid local family. As someone who owns rental properties nearby, I’ll be sourcing all my HVAC parts from them moving forward. Highly recommend!
Verified Buyer
Carl T. Droste
Had a power outage last night and during the 100 degree heat today noticed that the AC was not blowing any cold air. Pulled the capacitors to have them checked and also took video of the relay making noise even with the breaker was off. The proprietor and her staff were very friendly and helpful. She had the video analyzed and confirmed something was wrong. She checked one of the capacitors was a little low. Capacitor replacement is the biggest ticket item for HVAC repair. It is hundreds of dollars with the a capacitor only about $20.
Verified Buyer
Fuzzy Wuzzy
Cecil and his family have been a life saver. I walked in with very little knowledge on parts let alone how to repair my unit. All I had was my brother in FL who knows more than I do and Cecil at HVAC Depot. With 2 young kids at home I couldn't afford to wait for a HVAC tech. Cecil walked me through what I needed to know, even after hours when the shop closed. I successfully repaired the fan motor and replaced the capacitor. Thank you HVAC team for being totally awesome. Prices were amazing and I'm forever going to support this small family business. You and your family are what Texas is all about!!!
Verified Buyer
Linda Robinson
I called HVAC Depot and was absolutely blown away by the fast, courteous and exceptional service. They were very knowledgeable about explaining what they were doing and what had happened to the ac system. If you ever need a HVAC team they are best and they won’t hesitate by coming out and they won’t leave until you are happy with the service. Thank you so much for your excellent service. Kudos to you Michelle for your amazing customer service.
Verified Buyer
Paul Hamer
My AC went out in our home on Friday night. I went out and got the capacitor details and took them here first thing Saturday morning. Lady at the counter was friendly and had the capacitor I needed! When I got home, I installed the capacitor and AC is all good!!
Verified Buyer
Jeff Ledesma
Awesome support and had everything I needed for an older unit! Then helped me out with the DIY!! Air conditioning back up and running at 100%!!
Thanks for everything
Verified Buyer
YOU MAY ALSO LIKE
Explore More Products
Goodman-Amana 0150M00042S Gas Furnace Blower Wheel – Genuine OEM 10" Diameter x 10" Width Clockwise Blower Wheel
Goodman-Amana B1368047A Blower Wheel – Genuine OEM 10" Diameter x 10" Width Clockwise Blower Wheel
Goodman-Amana B1368034S Blower Wheel – Genuine OEM 10" Diameter x 6" Width Clockwise Blower Wheel
Goodman-Amana B1368048S Furnace Blower Wheel – Genuine OEM 10" Diameter x 10" Width Clockwise Blower Wheel
Goodman-Amana B1368058S Blower Wheel – Genuine OEM 10" Diameter x 8" Width Clockwise Blower Wheel
Goodman-Amana B1368016S Blower Wheel – Genuine OEM 10" Diameter x 8" Width Clockwise Blower Wheel
Goodman-Amana D6723311S Blower Wheel – Genuine OEM 11" Diameter x 10" Width CW Blower Wheel
Lennox LB-29333BDD, Direct Drive Blower Wheel, 11 x 8 x 1/2 Inch
Goodman 0150M00000S Blower Wheel | Genuine OEM 9" Diameter 6" Wide
Goodman B1368042S Furnace Blower Wheel – Genuine OEM 9" Diameter 6" Wide Clockwise
Goodman B1368036S Furnace Blower Wheel – Genuine OEM 9" Diameter 8" Wide SS Clockwise
Goodman D6723302S Furnace Blower Wheel – Genuine OEM 10.5" Diameter 8" Wide Clockwise
Goodman B1368056SP Furnace Blower Wheel – Genuine OEM 12" Diameter 11.25" Wide
Goodman D6723303S Furnace Blower Wheel – Genuine OEM 10" Diameter 6" Wide Clockwise
Goodman D6723306S Furnace Blower Wheel – Genuine OEM 10" Diameter 10" Wide Clockwise
Factory Authorized Parts™ LA22ZA127 HVAC Blower Wheel 11 7/8" Diameter 10 5/8" Width 1/2" Bore
Factory Authorized Parts™ LA22ZA118 HVAC Blower Wheel 12" Diameter 10.18" Width 1/2" Hub
Factory Authorized Parts™ LA22LA036 HVAC Blower Wheel 11" Diameter 10.62" Width 5/8" Bore
Factory Authorized Parts™ LA22JA010 Furnace Blower Wheel 11.25" Diameter 11.25" Width 1/2" Bore
Factory Authorized Parts™ LA22JA007 HVAC Blower Wheel 10" Diameter 8" Width 1/2" Bore
Factory Authorized Parts™ LA22ZA120 HVAC Blower Wheel 11.93" x 11.93" 1/2" Bore
Fasco FM55 Universal 3-Leg Torsion-Flex Mounting Bracket Kit | Fits 5.5" Diameter Motors | 9" & 10.18" Bolt Circles
Factory Authorized Parts™ LA22ZA121 HVAC Blower Wheel – 10" Diameter x 8" Width, 1/2" Bore, CW, OEM Specs
Factory Authorized Part™ LA22LA094 HVAC Blower Wheel – 12.25" x 11.7/8
Factory Authorized Parts™ LA22LA015 HVAC Blower Wheel – 10" x 10", 1/2" Bore, Concave, OEM Specs
PROTECH™ 70-20602-01 Direct Drive Blower Wheel | 11" Diameter x 10" Width | 1/2" Bore | Concave Center Disc | CW Rotation
Lennox 69W50 Genuine OEM Direct Drive Blower Wheel 11 x 11 x 1/2 Inch 102703-02
Lennox 38M0201, Direct Drive Blower Wheel, 11-1/2 x 10 x 1/2 Inch
Lennox LB-29333BDC, Direct Drive Blower Wheel, 11 x 10 x 1/2 Inch
Goodman D6723310S Blower Wheel | 10" D x 6" W | 1/2 Inch Bore | OEM Blower Wheel Replacement
Goodman B1368000S Blower Wheel | 11" Diameter | 10" Width | 1/2" Bore
Lennox LB-29333BCN, Direct Drive Blower Wheel, 11-1/2 x 10 x 1/2 Inch
Lennox LB-29333BBS, Direct Drive Blower Wheel, 10 x 8 x 1/2 Inch
Lennox LB-29333BBC, Direct Drive Blower Wheel Replacement, 12 x 12 x 1/2 Inch
Lennox LB-29333BBA, Direct Drive Blower Wheel, 12 x 9" x 1/2" Bore
Trane American Standard WHL00502 Blower Wheel 10"D X 10" W Direct Replacement
Trane WHL00504 Blower Wheel – Genuine OEM (10" x 9", CW Rotation)
Trane WHL00654 Blower Wheel – Genuine OEM (10.62" x 9.5", CCW Rotation)
Trane WHL00711 Blower Wheel – Genuine OEM (11.87" x 11.82", CCW Rotation)
Trane American Standard WHL03718 Blower Wheel 11.93"D X 11.93" W Direct Replacement
Trane WHL01146 Blower Wheel (11" x 8", 1/2" Bore) – Genuine OEM, Clockwise Rotation
Trane WHL02557 Blower Wheel – Genuine OEM (11.75" x 10.62", CCW Rotation)
Trane WHL03116 Blower Wheel, 11.7 IN DIA X 10.6 IN WIDE, 1/2" Bore, WHL03116
Rheem 703023A Genuine OEM Furnace Blower Wheel 10" x 10" CW
Factory Authorized Parts™ LA22ZA123 HVAC Blower Wheel – 10 5/8" x 10 5/8", 1/2" Bore, CW, OEM Specs
Factory Authorized Parts™ LA22LA014 Blower Wheel | 11" Diameter x 10" Width | 1/2" Bore | CW Rotation | OEM Centrifugal Fan
Trane WHL00496 Blower Wheel - 10" Diameter x 8" Width, 1/2" Bore, CW Rotation
HVAC Parts and Equipment Depot
Frequently Asked Questions
Questions? We’ve got you covered
We are open to the public! Homeowners, landlords, and DIYers are all welcome—no license required.
We carry blower motors, fan motors, capacitors, control boards, contactors, thermostats, filters, copper lines, refrigerants, and more.
Yes, we stock OEM and compatible replacement parts for major brands including Trane, Goodman, Lennox, Carrier, Rheem, and others.
Absolutely! Bring in the part, model number, or a picture, and our team will help match you with the correct replacement.
Yes, we accept returns or exchanges within a set time period—just make sure the item is unused and in original packaging. Ask for specific terms at the counter.
While we don't install, we can answer basic questions and refer you to trusted local HVAC technicians if needed.
We sell certain refrigerants, but EPA regulations require certification for purchase of products like R-410A or R-22.
We offer both! You can shop in person or call to arrange shipping if you're out of town.