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How old could this be?

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SlamDunk
SlamDunk Member Posts: 1,580
in A-C, Heat Pumps & Refrigeration
I know it is at least 35 yrs old because that is when we moved in the house and we never had a reason to replace until this past week. I wonder what the typical life span is of a fan controller limit switch?

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  • STEVEusaPA
    STEVEusaPA Member Posts: 6,506
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    It's closer to 50 years old, or more. I've probably replaced 3 of them in 20 years. So that's why they stopped making them :)
    steve
  • SlamDunk
    SlamDunk Member Posts: 1,580
    edited December 2015
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    Thanks! I hated to see it go after so many years. Impressive!
    They still make them. But there have been many revisions.
  • lchmb
    lchmb Member Posts: 2,997
    edited December 2015
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    Dont forget the stack switch on the vent pipe (betting I know where this house is or dejavu that I just looked at the exact match)
  • SlamDunk
    SlamDunk Member Posts: 1,580
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    Thanks for the advice, I looked it up to see what a stack switch is. We don't have one. Looks like a really good thing to have. But we don't. Must be a dejavu all over again.
  • unclejohn
    unclejohn Member Posts: 1,833
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    There is probably a date code on the inside cover or on t6he control it's self. Year week or month like 7342. 42 week of 1973
  • JUGHNE
    JUGHNE Member Posts: 11,061
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    Do you still use the furnace that came with it?
  • SlamDunk
    SlamDunk Member Posts: 1,580
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    reluctantly, yes.
  • lchmb
    lchmb Member Posts: 2,997
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    How about some pictures of the rest of the unit? Have you given thought to upgrading your system prior to a complete failure?
  • SlamDunk
    SlamDunk Member Posts: 1,580
    edited December 2015
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    I'll see what I can find and post for historical posterity. Not worried about complete failure of equipment that has been in service since approximately the year 1900+\- 5yrs.

    Just the efficiency. It is a concern when price of oil is in the $4 range.
  • pecmsg
    pecmsg Member Posts: 4,845
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    unclejohn said:

    There is probably a date code on the inside cover or on t6he control it's self. Year week or month like 7342. 42 week of 1973

    Why does 1973 seem not that long ago?
  • SlamDunk
    SlamDunk Member Posts: 1,580
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    Why does 1973 seem not that long ago?

    no kidding. the first Star Wars movie came out in 1977!!!
  • SWEI
    SWEI Member Posts: 7,356
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    SlamDunk said:

    the first Star Wars movie came out in 1977!!!

    A bunch of us skipped high school that week to go and see it.
  • JUGHNE
    JUGHNE Member Posts: 11,061
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    I probably took my kids out of school to see it! :)
  • SlamDunk
    SlamDunk Member Posts: 1,580
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    Jughne wins!
    unclejohn

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