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  1. #1
    Join Date
    Jan 2014
    Posts
    4

    Default Thirteen year-old electric heat-pump HVAC system: should we replace or repair?

    The fan on the outside heat-pump unit stopped working. A local HVAC tech diagnosed a faulty pressure switch. He advised that due to the age of the system the $400 cost to replace the switch would not be economically wise. His repair was to bypass the switch to keep it running. He said if it were his house that is what he would do even though it could eventually cause a compressor failure and the entire unit will have to be replaced. Spending $400 now would not be a major burden but if the system is really near the end of its life expectancy would it be wise? Should we have the switch replaced or just continue with the bypassed switch and save the money and consider a system that may be more efficient in our Missouri climate? We will probably live in the house for three more years.

  2. #2
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,969

    Default Re: Thirteen year-old electric heat-pump HVAC system: should we replace or repair?

    How much of a gambler are you?


    That's all it boils down to really. Pick a time when the unit you need is best priced, perhaps when last year's models are being sold off, or when you have the money and time to replace it.

    Besides, the new ones work much better than the old ones. You'll save money on the efficiency each month.

  3. #3
    Join Date
    Dec 2007
    Location
    Tennessee
    Posts
    1,790

    Default Re: Thirteen year-old electric heat-pump HVAC system: should we replace or repair?

    Your unit should be good for 20 years. So theoretically, a $400 expense spread over 7 years is only $57.15 per year. A new unit about $4000 spread over 20 years is $200/year plus a mid life expense along the way. And you are going to only be there three more years.

    I would not jury rig the fan though. My recommendation is that you find a knowledgeable and qualified repairman to fix the unit.

  4. #4
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,751

    Default Re: Thirteen year-old electric heat-pump HVAC system: should we replace or repair?

    Both good answers.

    Tell you what I would do: if I know for sure that I'll be moving in 3 year - I would repair it. But if I know that I'll stay in this house a long time, I would replace it.

  5. #5
    Join Date
    Jan 2014
    Posts
    4

    Default Re: Thirteen year-old electric heat-pump HVAC system: should we replace or repair?

    Thanks for the replies. Does $400 to have the pressure switch replaced sound reasonable? The diagnosis, temporary fix bypass of the switch and cost estimate was done by a tech from a local hvac/plumbing company.

  6. #6
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,751

    Default Re: Thirteen year-old electric heat-pump HVAC system: should we replace or repair?

    It doesn't sound unreasonable, but you need to get 2 more estimates.

    Everything you buy must depend on comparisons of apples to apples (except if you're a rock star, like Justin Beiber).

  7. #7
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,751

    Default Re: Thirteen year-old electric heat-pump HVAC system: should we replace or repair?

    Or Bieber, I'm not sure.

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