Costly unit failures demand immediate dispatch routing to prevent $1,500-$4,000 replacements
https://precisionhvacnearuc-davis.yousher.com/fault-isolation-sequences-reveal-ideal-tune-up-timing-twice-yearly-before-seasonal-peaks
The compressor is the most expensive component in an HVAC unit, typically costing $1,500 to $4,000 to replace