Sub-Zero 500 Series User manual

Sub-Zero Refrigerator

Service Guide

A Step-by-step guide

Answers to the most common repair and service questions

for your Sub-Zero

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Overview

The most common question is, “How serviceable is it?”

Sub-Zero is a family owned company based in Wisconsin. Family owned means you care

more about the label than a multi-national would. Incredibly, every Sub-Zero is tested

before it leaves the factory.

Sub-Zero is notoriously slow in developing new products, because their development and

quality program is so methodical.

The Most ReliableAppliance Brands: Read more »

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Table of Contents

Troubleshooting

A few quick tips for to figure out what may be wrong with your Sub-Zero

Repairs

Step by step walkthroughs for common repair issues

Repair or Replace?

How do you know when it’s time to make that choice?

How to Buy or Get Service

Quick tips to help you consider a new Sub-Zero purchase

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Troubleshooting

A few quick tips to help you figure out what’s

wrong with your Sub-Zero

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Troubleshooting

Products

Sub-Zero 500, 600, BI and PRO series.

Troubleshooting

There are a few quick tips to figure out

what may be wrong with your Sub-Zero.

Sub-Zero is one of the few products that

will always be worth repairing 15-20 years

old.

Plus, we will give you step-by-step help on

how to repair the most common issues.

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Troubleshooting

Basic Refrigerator Operation

Let’s narrow it down. Basic refrigerator operation is as follows. Power on, set freezer temperature

to 0º and refrigerator to 38º.

Note that the twin compressor system operates both sides from a single power source but are

separate when it comes to operation and cooling.

Now you need to narrow down which compartment is having trouble and select the correct

problem at hand.

What’s Wrong?

•Not Cooling?

•Water Filter?

•No Power?

•No Ice or Water?

•Light Switch?

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Not Cooling?

Why is my Sub-Zero not cooling properly?

Models: 500, 550, 600, 611, 632, 650, 690, BI-30, BI-36, BI-42, BI-48, PRO48.

The number one reason for a no cooling situation is a clogged condenser. The symptoms would be that

both the fridge and freezer section are losing cool temperature. Also, the area between the doors

would be getting hot.

If the refrigerator isn’t cool, check to see if the light comes on when you open the door. Next, check to

see if the thermostat or display control is set properly. If both of these are OK, then check to see if the

compressors are running. Sub-Zero is one of the few manufacturers with a twin compressor system,

which means your fridge side can be not operational and your freezer side can be working fine (or vice

versa).

See if the compressor motor is running. The compressor is in a case with no visible moving parts. It is

usually located at the top of the Sub-Zero unit (except 400 and 700 series) and this is a dual

compressor system, the right compressor is the fridge section. If it’s humming or making a steady noise

and your refrigerator is not cooling properly there could be a problem with one or more various

components.

The most common is the condenser is clogged with lint, hair, debris and it needs to be cleaned. This is

a simple process and should be done every six months.

Need to replace the filter? Walk through it in our repair section: Read more »

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No Power?

There is a difference between thinking there is no power and the

lights and control shutting down per safety feature. All Sub-Zero

units have a safety feature if the doors are left open for a period of

time that will shut down all lights. You can power off and on or make

sure all doors are closed and it will come back around in a few

minutes.

First, check that the power is on by simply pushing “POWER” on the

display (top right corner). Then check power supply, this can be

tougher as they are plugged in behind the grill section on the top

right side. You can plug something else, like a hair dryer, into the

outlet to confirm there is power.

There is also a possibility that the circuit breaker has tripped. This

would be located in a common area of the home and will have every

electrical unit listed.

Bad light switch? See our repair section: Read more »

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Filter Replacement

How often should I change the Sub-Zero water filter?

You should change the filter cartridge at least once every twelve months. High sediment areas

may require more frequent filter replacements.

Replace the water filter cartridge when the filter indicator is lit or when water flow becomes

low.

Do not use with water that is microbiologically unsafe or of unknown water quality without

adequate disinfection before or after the system.

Systems certified for cyst reduction may be used on disinfected waters that may contain

filterable cysts.

This system must be installed, operated, maintained and filters replaced as required in order for

the product to perform as advertised.

Want to replace the filter? Walk through it in our repair section: Read more »

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No Ice or Water?

There’s No Ice or Water in my Sub-Zero

Models: 500, 550, 600, 611, 632, 650, 690, BI-30, BI-36, BI-42, BI-48, PRO48.

Why doesn’t my Sub-Zero icemaker or water dispenser get water to it?

Make sure the freezer has cooled down enough after installation. Most Sub-Zero ice makers

won’t produce ice until the temperature has reached less than 10°. On Sub-Zero BI and PRO48

series models you may not get any water if the filter is plugged with sediment.

Icemakers need about 40 psi to fill properly. Make sure the water supply valve is turned on. This

valve is usually located under the kitchen sink and has a 1/4” copper or braided line running to

the refrigerator. Turn it counter-clockwise to ensure the valve is open.

Occasionally, this fill tube may freeze. The way to check this is to remove the icemaker and look

at the tube. If it is frozen, you will probably need to replace the water fill valve. Verify that the

icemaker is plugged in and turned on. The wire or plastic arm will be in the down position if it is

on.

Need to replace the water valve? Walk through it in our repair section: Read more »

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This manual suits for next models

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