How to shut off JUST the freezer or JUST the fridge of a sub zero refrigerator

For those of you that need to shut off the freezer independently of the refrigerator or vice versa.
This will work for Sub Zero units after serial number starting with 18100000.
Turn the machine off by hitting unit on/off key .
With the unit off: Hold the warmer key on the side you would like to shut off, then hit the power button and let go of both keys at the same time.
To turn back on:
Hit unit on /off so lights go out,
Hold the warmer key again and press the power key.
Let go of the keys at the same time.
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[@lesbauman]

Do you have any videos on replacing the freezer circulating fan on the 642 series . Thanks

[@briancaine9130]

Very helpful. Thanks.

[@claybanksstudiointernation3046]

Thanks! How do you make the 'service' light go off? We just had our frig serviced, it works fine, and the light is still on.

[@subzerorepair]

Hold down alarm button 15 seconds

[@j3d3d1ah]

Do you know if it's possible to convert a Sub Zero all freezer (BI-36F) to a refrigerator?