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Welcome! We keep going until you have all of the information you need.[b/]. Extensive training & coaching also available.If the system was working well before he arrived then he would generally be totally out of line in such a diagnosis... I would call his boss first, and if a deep apology is not forthcoming, I would switch maintenance companies right away, I might switch anyway.
If the system is over 10 or 15 years old however, the blower motor bushings would indeed be worn, and the compressor valves might not be 100% up to par, but that is not a cause to replace the entire unit however, maybe replace the fan motor for $400 or so.
Tell me please about how old the system is. We can go from there.
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