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Recently, AC compressor died on 760. From a most helpful post from Steve Ringlee, I learned that compressor died the "black death" and how to prevent the premature or even immediate same death of the new compressor. Although information in the links Steve provided has convinced me of the low cost of a complete or at least a "firewall forward" overhaul of an AC when the compressor has died the "black death", price is steep. I have spent over $1,000 on genuine Volvo parts, even at a discount. After I took AC apart, I thought a periodic evacuation, flushing and putting in new oil and gas could prevent or at least delay the "black death" of the compressor and AC overhaul. I asked Steve about this idea and he suggested a new receiver would be needed. Posting a reply to an offer to help from Warren Bain, I thought a new orifice or VOV should be put in too, probably together with an Airsept screen to be replaced with a new one upon each periodic maintenance. I estimate each DIY maintenance should cost around $100: $20 for professional evacuation, $20 for flushing solvent ($40 for tool and solvent), $35-45 for a new receiver and orifice valve or VOV, $5 for an Airsept screen ($86 for the complete kit with a dozen screens), $20 for R134 and oil. Please, tell me what you AC gurus, techs and DIY think. Thank you and best regards.
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