How JustAnswer Works:

  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

Ask The Home Smithy Your Own Question

The Home Smithy
The Home Smithy, Home Appliance Technician
Category: Appliance
Satisfied Customers: 9508
Experience:  30 years repairing appliances
Type Your Appliance Question Here...
The Home Smithy is online now
A new question is answered every 9 seconds

I have a walk in cooler on 134a. compressor runs , suct press

Customer Question

I have a walk in cooler on 134a. compressor runs , suct press 70 discharge 190, no cooling at evap. tried to adjust txv, and even replaced it and no difference.
Submitted: 3 years ago.
Category: Appliance
Expert:  John replied 3 years ago.

Check the condenser coil to see if there's a layer of dust blocking the air flow through it. If there is vacuum it off, and give the unit an hour or so to return to normal operation.

 

If my answer helps you, please click on the 'accept' button. That's how we experts are paid for our efforts.

Customer: replied 3 years ago.
condenser coil and evap are very clean
Expert:  The Home Smithy replied 3 years ago.

Hi. Welcome to JustAnswer.
If the answer I provide for you is helpful, please click 'ACCEPT'. I won't be paid if you don't.
Thank you.

Most likely the TVX is plugged. You should see fluxuations in your guages as the unit cycles. On both sides.

If the guages (especially on the low side) do not fluctuate then the expansion valve is plugged and will have to be replaced.

 

Expert:  The Home Smithy replied 3 years ago.
I located a great article on TVXes. Please click here to view it.
Customer: replied 3 years ago.

I just replaced it, along with the drier. evac. and charged doing same thing. the screen in the txv was clean.

 

Expert:  The Home Smithy replied 3 years ago.
Ok if you have no cooling at the evaporator coil then no refrigerant is being expanded into the coils. It is the expansion of the liquid refrigerant back into a gas that provides the cooling effect.
I understand that you have changed the components out, but the simple fact still remains that this is just not happening. It could be from debris that may have been left in the unit that has plugged the valve again, I'm not sure. The best suggestion I can make is that you evacuate the system again and see if that remedies the problem.
Customer: replied 3 years ago.
you were wrong, the compressor was bad, wouldnt pump down , and I replaced compressor and it works fine
Expert:  The Home Smithy replied 3 years ago.

the guage readings you provided was what swayed me towards the valve.

Glad you got it fixed.

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • Thank you for the expeditious answer. It's good to know you're out there and awake in the wee hours when I finally have time to ask questions about my Jenn Air. Jean Riverhead, NY
< Last | Next >
  • Thank you for the expeditious answer. It's good to know you're out there and awake in the wee hours when I finally have time to ask questions about my Jenn Air. Jean Riverhead, NY
  • You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future. Jimmy Bagley, IA
  • Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help. Mary C. Freshfield, Liverpool, UK
  • This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!! Alex Los Angeles, CA
  • Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult. GP Hesperia, CA
  • I couldn't be more satisfied! This is the site I will always come to when I need a second opinion. Justin Kernersville, NC
  • Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around. Esther Woodstock, NY
 
 
 

Meet The Experts:

 
 
 
  • John

    Home Appliance Technician

    Satisfied Customers:

    13442
    Appliance repair business owner for over 43 years.
< Last | Next >
  • http://ww2.justanswer.com/uploads/docjohn174/2008-12-13_170143_johnask.jpg John's Avatar

    John

    Home Appliance Technician

    Satisfied Customers:

    13442
    Appliance repair business owner for over 43 years.
  • http://ww2.justanswer.com/uploads/tomgoe/2011-01-04_021913_2008-03-03_183612_phpexrmok_c2pm.jpg Tom Goellner's Avatar

    Tom Goellner

    Home Appliance Technician

    Satisfied Customers:

    1191
    32 yrs. experience servicing major appliances and HVAC equipment.
  • http://ww2.justanswer.com/uploads/MD/md2020/2012-6-6_20648_Selfpic.64x64.jpg Tyler Z.'s Avatar

    Tyler Z.

    Appliance Doc

    Satisfied Customers:

    51307
    7+ years being an appliance technician with factory training.
  • http://ww2.justanswer.com/uploads/bryanpaul52/2009-2-18_12031_0918081611.jpg Bryan's Avatar

    Bryan

    Home Appliance Technician

    Satisfied Customers:

    11158
    15 yrs. experience as a certified appliance technician.
  • http://ww2.justanswer.com/uploads/SM/smitty1486/2011-3-1_0145_Snapshotofme1.64x64.png Kelly's Avatar

    Kelly

    Appliance Technician

    Satisfied Customers:

    6493
    Highly accurate diagnostician with over 30 years experience!
  • http://ww2.justanswer.com/uploads/TH/TheHomeSmithy/2011-8-13_11146_homesmithy.500x500.64x64.jpg The Home Smithy's Avatar

    The Home Smithy

    Home Appliance Technician

    Satisfied Customers:

    5935
    30 years repairing appliances
  • http://ww2.justanswer.com/uploads/TE/Teamcold/2012-6-15_15028_HomeRepairsquarecopy.64x64.jpg Barry G.'s Avatar

    Barry G.

    Home Appliance Technician

    Satisfied Customers:

    5039
    27 years in home appliance repair. EPA refrigerant transition and recovery certification type I & II.
 
 
 

Related Appliance Questions