Question about Sub-Zero 632 / S

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Clean coils and service message

When the clean coils message came on, we removed the top grid and vaccuumed the coils and cleaned the grid. We replaced it and screwed it back into place. We have done this before successfully. This time after we did this, the vacuum coils AND the service message comes on. Any idea what we need to do?

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  • jellin Feb 15, 2008

    We have cleaned the coils before successfully. I.E., the vacuum coils message went away when we put it back together. I don't THINK there is anything that needs to be done underneath the unit. Compressor and fan run on top. We also tried turning it off and back on. I don't know if there is a re-set button or not, but we didn't need it last time. Should probably take a look at the owners manual. It costs $119 for someone to come out and do what we did, so obviously we are going to try to find our own answer first. Thanks!



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Not familiar with your unit, but, are there coils under the unit? Where is the compressor and is there a fan running, moving air under the unit? There may be a sensor at either place that needs wiped off or is covered with dust so as not to be able to sense air movement. Let me know and I will try to help you further....

Posted on Feb 15, 2008

  • Timothy Smith Feb 16, 2008

    OK. Since the compressor is on top, there must be or at least I am making a guess that there is a sensor up there that senses air movement or picks up a signal from an emitter of sorts. It would probably be in a tube or small round holder at both transmitter/emitter and receiver. They would situated such that if enough lint or dust accumulates on the coils it would inhibit that light, probably infrared, to not get from one point to the other. It may be that you have the coils clean but a bit of dust is still covering one or the other. Not knowing this unit, I am kind of lost in helping other than knowing how other similar sensing systems work...The number listed for help line is 888-222-7820. All I know is if it is sensing that the coils need cleaned there has to be a sensor to tell that. Make sure all of the fins are straight and unbent as straight from the factory. Use compressed air if available to blow out all dust. This is the best way as it does not come in contact and bend even very light duty metals....



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