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Have model 511 sub zero,, refridgerator is not staying cold,,, have changed the evaporator ,,condenser fan motor,,filter drier ,,,heat exchanger and recharged the freon w R-409 charge and it still is not staying consistently cold,,, help

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  • Refrigerators Master
  • 4,654 Answers

Did you pull a long vacuum? Here are a few things or a simple check list=> Refrigeration and Absolute Vacuum

Thanks, Sea Breeze

Posted on Feb 18, 2012

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  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 356 Answers

SOURCE: i need to vacuum the condenser in a sub zero,

The condenser coil is located behind the cover on top of the two doors and when you take it off you see the coils that look like a radiator (fins and copper pipes) ,turn of the refrigerator and with a brush and a vacuum clean the coil very carefully and don't push to hard against the fins.

Posted on Aug 24, 2009

  • 56 Answers

SOURCE: condensation and water in refrigerator

It sounds like you need someone who knows what they are doing out to your house. A tech should find and repair or replace the component that leaks. A second trip should be not be needed. The fact you have mold tells me they have never properly did your repair. Mold will grow only when the cavity gets above 40 degrees for a sustained period of time. use http://www.subzero.com/locator/locator.aspx?type=0&zip=02030 or call 800-222-7820 and explain the situation and get another company to fix it right.

Posted on Dec 06, 2008

SOURCE: Sub-Zero 511 Freon Leak

Paul, we have the same problem with a built-in Kitchenaid and the price of replacing the fridge is out of sight for us. Where did you get the equipment to check the freon and replace it?

Posted on Jul 22, 2008

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I have no cold air in my refrigerator or Freezer. It defrosted everything.


Condenser Coils are Dirty
If the refrigerator is not cold enough the condenser coils may be dirty. The condenser is like a radiator and must stay clean in order to dissipate the heat which was removed from the inside of the refrigerator. As the coils get dirtier the refrigerator becomes less efficient, which makes it work harder to cool down. If the coils are dirty enough, the unit will never be cold enough and will not be able to cool the inside of the refrigerator to the proper temperature.
Evaporator Fan Motor
If the refrigerator is not cold enough, the evaporator fan motor might have failed. Every refrigerator has a set of coils called an evaporator. The refrigerator may have one or more evaporator fan motor(s) depending on the model and evaporator locations. The evaporator fan motor circulates the cold air from the coils thru the compartment. If there is only one evaporator it is in the freezer side. If the fan is not working, no cold air will get to the refrigerator compartment. The freezer may still get cold.
Condenser Fan Motor
If the refrigerator is not cold enough there might be something caught in the condenser fan motor blade, or the condenser fan motor might be defective. The condenser fan motor draws air over the condenser coils to cool them. The condenser fan motor is located underneath the refrigerator near the back. Pull the refrigerator out from the wall and remove the access panel to access it.
Start Relay
If the refrigerator is not cold enough, the start relay may be defective. The start relay is a small device mounted to the side of the compressor. It provides power to the run winding along with the start winding for a split second at start-up to help get the compressor started. If the start relay is defective the compressor may run intermittently or not at all and the refrigerator will not get cold enough. The start relay should be replaced if defective.
Temperature Control Thermostat
If the refrigerator does not get cold enough the temperature control thermostat might be defective. The thermostat allows power to flow through to the compressor, evaporator fan and condenser fan. If the cooling system fans and compressor are running, but the refrigerator or freezer is not cooling correctly check for an airflow or defrost system problem.
Start Capacitor
If the refrigerator isn't cold enough the compressor might be having difficulty starting. The start capacitor serves as a battery to give the compressor a little boost during start-up. If the start capacitor is burned out the compressor might not be able to start and run as often as it should. Test the start capacitor first with a capacitance meter, they don't fail often. If it's defective, replace it.
Thermistor
If the refrigerator is not cold enough the thermistor might be defective. The thermistor is a sensor which monitors the air temperature. It is connected to the control board. If the thermistor is defective the refrigerator does not cool or may cool continuously.
Temperature Control Board
If the refrigerator is not cold enough the temperature control board might be defective. The temperature control board provides the voltage to the fan motors and compressor. These boards are often misdiagnosed. Check all other components to be certain this is the cause of the problem.
Compressor
If the refrigerator is not cold enough, the compressor might be defective. The compressor is a motor which compresses the refrigerant and circulates the refrigerant through the evaporator and condenser coils. There are several other components which are more likely to be defective if the compressor doesn't work. If the compressor itself is defective a licensed professional will need to replace it.
Main Control Board
If the refrigerator is not cold enough the main control board might be defective. This is not common. Check the defrost system, cooling fans, and cooling controls first.

Jun 28, 2017 | Refrigerators

1 Answer

Why is my sub zero freezer not cold enough?


Hi,

Although I have no model number to assist you, cooling issue have many possible causes. Here are a few you can check: dirty condenser, non working condenser fan motor, hot compressor, bad compressor, bad cold control, bad or failed evaporator fan motor, etc..
So a model number gives use a better look into the issues you have. Check all components listed here and determine what is not working for you. Good Luck

Aug 22, 2014 | Refrigerators

2 Answers

Sub-zero 550 refrigerator is too cold--icing at boottom near vegetable bins. Temperature is eratic--a lot of variation between top shelf and bottom and frequently shifting and changing.


It is very common for this refrigerator to have a freon leak in the evaporator.
Since you need a EPA license, This is usually beyond the scope for the home owner to repair.
http://www.on-timeappliance.com/subzero.html

Mar 28, 2012 | Sub-Zero Refrigerators

1 Answer

I have sub zero 245 RFD model. It was working great and almost overnight it stopped getting cold. Is there anything I can do before calling for service? Thanks


Hi,
Have you checked the condenser to see if its clogged, or the condenser fan motor to see if its running. Is the compressor running? If not, you may need to by-pass the cold control to see if the problem is there. This older unit has a single compressor, so if the condenser fan is not running, the compressor can over heat and shut down. If the condenser is clogged same thing. If the light switch at the bottom of the door fails, the light will over power the cooling ability too. All of these things can cause the unit to fail. This unit is close to 30 years old. You made want to rethink a major repair at this point. With out seeing the unit, this would be the places I would be looking for answers.
If you need more help, let me know..

Aug 28, 2011 | Sub-Zero 245

2 Answers

Just had the condenser fan motor replaced on my 550 sub zero refrigerator. I forgot to asked the serviceperson the following questions: Does the fan continously stay on and what is the normal sound of...


Good day,
On models with 2 compressors the condenser fan motor runs 24/7. It must since the compressors run randomly and that motor must be on since it handles both units.

Fan noise is subjective. It itself makes little noise but the blade does. If for example the blade was changed from the nylon style to a metal blade (good idea) then it would be somewhat louder.
If the noise is not objectionable then I would use it as is.

Oct 06, 2010 | Sub-Zero Bottom Freezer Refrigerator

2 Answers

My sub zero refridgerator (freezer on bottom fridge on top) is cold on the bottom of fridge and warm on the top of the fridge. Any idea what is causing this. Items are also damp in fridge. We just vacumed...


the evaporator coil inside the freezer compartment is iced over and can't transfer cold air in thes condition,remove panel inside freezer on back side of freezer compartment and thaw it out with a hair dryer,then check the defrost heating element for continuity,if its open replace it,if its good, ,check the defrost control that powers the defrost heater

Jul 15, 2010 | Sub-Zero 611 / O Bottom Freezer...

2 Answers

Refridgerator does not get cool enough


Buttom freezer Sub Zero. Replacing evaporator for fresh food section.

Mar 31, 2010 | Sub-Zero Bottom Freezer Refrigerator

1 Answer

Does the fan is on all the time?


old subzeros the CONDENSER FAN MOTOR RUNS OLD THE TIME. SAME WHIT THE EVAPORATOR FAN MOTOR. RUNS ALL THE TIME. now fos systems whit 2 compressor the condenser fan motor run for both compressor. only stop when both compressor stop......

Nov 25, 2009 | Sub-Zero 611 / O Bottom Freezer...

1 Answer

COMPRESSOR RUNS, AND IS HOT TO TOUCH, FREEZER WONT STAY COLD IF O


either your evaporator and condenser coils are very dirty or your low on r22 freon

Jul 31, 2009 | Freezers

5 Answers

Sub-Zero not cooling properly


found leak at evaporator, made a video how to replace it on Sub Zero Vacuum Condenser Light stayed on

Jun 16, 2008 | Sub-Zero 650 / O Bottom Freezer...

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