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: 9571
Experience:  30 years repairing appliances
3079445
Type Your Appliance Question Here...
The Home Smithy is online now
A new question is answered every 9 seconds

I have a sub-zero model 211 RFD and just recently replaced

Resolved Question:

I have a sub-zero model 211 RFD and just recently replaced the compressor and fan since the freezer would not get cold enough. This is the second compressor in 26 years of use. I realize that the unit has a defrost cycle but wonder what temperature range the freezer goes through throughout the day and night. Sometimes when I get up early in the morning the temperature in the freezer is 32 degrees and then it gradually drops down to 0 to 10 degrees. I have the cold control set at about 4.75 since a setting of 5 caused the fresh food part of the refrigerator to be too cold causing milk, for example , to start to freeze. I have not had the cold control replaced as far as I can remember. Does the above temperature fluctuation seem normal for this older model?
Submitted: 3 years ago.
Category: Appliance
Expert:  The Home Smithy replied 3 years ago.

The Home Smithy :

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.

The Home Smithy :

If the unit is maintaining a temperature of 32* or cooler then the unit is operating as it should. If the unit is getting to 0* and then going up to 32* then that is a considerable temperature rise and you may have a defrost system that is staying on too long.

The Home Smithy :

This is of course taking into consideration that 32* is the actual reading on a thermometer and not considering 32* as freezing temperature.

The Home Smithy :

e.g; 0*= freezing

Customer:

How do you fix the defrost system staying on too long? I have the thermometer in the freezer section to monitor temperatures in it. Is the cold control functioning properly?

The Home Smithy :

The defrost system has a few componants that may cause this problem. It depends on whether you have an old type defrost timer (most likely in your case) or an adaptive defrost system. If there is a defrost timer then replaceing it would solve the problem. If it is an adaptive system then testing of the system will be required.

The Home Smithy :

the cold controls, from what you describe seem to be functioning properly as the unit is cooling down to freezing after it warms up.

Customer:

To summarize , it sounds like the cold control is working okay but a defrost timer may be allowing the defrost temperature to go too high thus causing things like frozen bread in the freezer to start to thaw. The technician has not mentioned a defrost timer so I don't know where it is located on this model.

The Home Smithy :

Ok after looking this up your unit has a defrost terminator switch that is the most likely problem. I would go ahead and change out the timer as well as they both seem to go out within a short time of each other.

The Home Smithy :

The terminator switch is located on the evaporator coil. Exactly where Im not sure. I cant bring up a diagram of your particular model.

Customer:

This is a built in refrigerator with the compressor on top of the machine and the evap part near the floor I believe.

The Home Smithy :

Please stand by. Im trying to locate the parts for you.

The Home Smithy :

Still looking please stand by

The Home Smithy :

Ok I have the model. Looking up the information now.

The Home Smithy :

Ok unfortunatly the parts are not available on line. You will have to go to SubZero directly (or your local appliance parts store) and get the parts from them. Sorry.

Customer:

Okay this is helpful information to deal with the appliance repair company. It does make sense and i wonder if I really needed a new compressor but that is behind me now. Thanks for your detailed help.

The Home Smithy :

You are most welcome.

The Home Smithy, Home Appliance Technician
Category: Appliance
Satisfied Customers: 9571
Experience: 30 years repairing appliances
The Home Smithy and 7 other Appliance Specialists are ready to help you

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:

    13453
    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:

    13453
    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:

    1293
    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:

    58693
    9+ years being an appliance technician with factory training.
  • http://ww2.justanswer.com/uploads/SM/smitty1486/2011-3-1_0145_Snapshotofme1.64x64.png Kelly's Avatar

    Kelly

    Appliance Technician

    Satisfied Customers:

    8783
    Highly accurate diagnostician with over 30 years experience!
  • http://ww2.justanswer.com/uploads/AP/appliance medic/2012-6-8_212544_Image4.64x64.jpg Appliance Medic's Avatar

    Appliance Medic

    Home Appliance Technician

    Satisfied Customers:

    7932
    Factory Trained CFC Technician
  • 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:

    6113
    27 years in home appliance repair. EPA refrigerant transition and recovery certification type I & II.
  • 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:

    6081
    30 years repairing appliances
 
 
 
Chat Now With An Appliance Technician
The Home Smithy
The Home Smithy
Home Improvement Repair Consultant
6116 Satisfied Customers
30 years repairing appliances