Troubleshooting Indicators for a Liquid Line Restriction, Low Airflow, Low Charge! Check the Charge!
AC Service Tech LLC AC Service Tech LLC
475K subscribers
133,488 views
0

 Published On Jul 22, 2022

In this HVAC Training Video, I Show How to Diagnose a Liquid Line Restriction, Low Indoor Airflow, or Low Charge by Measuring the Refrigerant Charge on a Manifold Gauge Set. I Show the Indicators for Pressures, Sat Temps, Superheat, and Subcooling. You Don't Need to Add Refrigerant to Try to Raise the Vapor Pressure Sat Temp. Simply use These Indicators for Troubleshooting! Supervision is needed by a licensed HVACR Tech while performing tasks as Experience and Apprenticeship garners Wisdom and Safety.

Tools Used In The Video

FieldpieceSMAN380V Digital Manifold Set - https://amzn.to/2yqzBX6
FieldpieceSMAN480V Digital Manifold Set - https://amzn.to/2ytvGZL
Fieldpiece SDP2 Digital Psychrometer - http://amzn.to/2nniMVR
Testo 549 - https://amzn.to/2X0jJVj
Testo 550 - https://amzn.to/3bIQvhS
Testo 557 - https://amzn.to/2ylgeyw
Refrigerant hoses with valves - http://amzn.to/2aBumVI
QuickDisconnect 90 for refrigerant hose - https://amzn.to/2MMtVcg
Thumb Screw Valve Core Depressor with Backseat - https://amzn.to/2mR0sCL
Yellow Jacket 1pk Compact Ball Valve - https://amzn.to/2uXdF18
Yellow Jacket 3pk Compact Ball Valve - https://amzn.to/2AiKfQe
RectorSeal Bubble Gas Leak Detector - http://amzn.to/2ckWACn
Imperial Kwik Charge 535-C - http://amzn.to/2uipEI6
Ratcheting Service Wrench - http://amzn.to/2dGV4Nh
Digital Refrigerant Scale - http://amzn.to/2b9oXYl
Appion Valve Core Removal Tool - http://amzn.to/2uYr8WL
Charging Jacket - https://amzn.to/2rCNcnm
Fieldpiece Wireless 6 Piece Job Link System Charge and Air Test Kit JL3KH6 - https://amzn.to/2wr4Xbp
hilmor Pliers: https://amzn.to/3GGpfSL
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Our Related Videos

   • AC FREEZING, FURNACE OVERHEATING? Qui...  
   • Liquid Line Solenoid Valve Operation ...  
   • Liquid Line Restriction! What Happens...  
   • Liquid Line Restriction on AC Unit Ex...  
   • R-410A AC Unit, Checking the Charge w...  
   • Low Outdoor Temp, "CHECK THE REFRIGER...  
   • Checking the Refrigerant Charge on a ...  
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Our HVACR Educational Books, E-Books, Workbooks, Cards, Posters, and PowerPoints:

All Our Educational Products on Our Site: https://www.acservicetech.com/store
All Our Educational Products on Amazon: https://amzn.to/48pDd82
Mini Split Book and E-Book on Our Site- https://www.acservicetech.com/mini-sp...
Mini Split Paperback on Amazon- https://amzn.to/3ytHJSs
Mini Split Paperback on TruTech Tools- https://www.trutechtools.com/BooksGui...
Refrigerant Charging Book and E-Book: https://www.acservicetech.com/ac-book
Refrigerant Charging Paperback on Amazon: https://amzn.to/46xTeHf
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Our HVACR Online Resources!

Our HVAC Calculators: https://www.acservicetech.com/hvac-ca...
Our Newest Articles: https://www.acservicetech.com/articles
Try our HVAC/R Quizzes! https://www.acservicetech.com/quizzes
Our Other Resources: https://www.acservicetech.com/resources
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Tools Used in Our Videos!

Tool Links on Our Site: https://www.acservicetech.com/tools
Our Tool List on Amazon: https://www.amazon.com/shop/acservice...
Support the Channel by purchasing tools through TruTech Tools!
Use this link https://www.trutechtools.com/?aff=8
Save 8% at checkout using code "acservicetech"
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Follow Us On Our Social Media & Podcasting Channels!

Patreon:   / acservicetech  
Facebook:   / acservicetech  
Instagram:   / acservicetech  
X:   / acservicetech  
LinkedIn:   / ac-service-tech-llc  
Tiktok:   / acservicetech  
Spotify: https://open.spotify.com/show/74KXLz5...
Apple Podcasts: https://podcasts.apple.com/us/podcast...
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
⚠️ Disclaimer:
Information in this video is intended for educational purposes only. Any work related to the topics in this video should be performed by licensed technicians or by apprentices under the supervision of licensed technicians. AC Service Tech LLC is not responsible for any possible damages or injuries caused by the use or misuse of any information provided.
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
#hvacr #hvacr #hvactrainingvideos #hvactraining #hvactraining101 #acservice #acservicetech #lowairflow #airflow #temperature #saturatedtemperature #indicator #troubleshooting #troubleshoot #temperature #indicator #superheat #subcooling #liquidline #manifold
▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬
Shop through Amazon! Your Purchases through Amazon provide a means for channels such as mine to earn advertising fees from all purchases after clicking through. Prices are the same as normal.

show more

Share/Embed