Quote:
Originally Posted by lopheim
Original HVAC installed in 2002. Yearly maintenance service indicated low coolant. Told it will take 4-5 lbs at $70/lb and could leak out very quickly, as there is high probability of a leak somewhere. We keep air around 78-79 degrees in house and unit seems to be cooling okay (maybe running a bit longer). Should we invest in new unit or wait until this one fails and then purchase?
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Unless your unit was undercharged from it's initial installation you do in fact have a leak. There are several methods that can be used to find the leak. Any good tech can visually spot a leak ( oil trail ) if the leak is substantial. Another would be electronic detection, would take no more than an hour ( assuming the leak source is not under your slab ) Cost of this service including recovery and recharge of the unit would be minimal compared to installing new equipment. But of course everything I mentioned hinges on the quality and proficiency of the technician.
I am a professional HVAC tech with no dog in this fight.