One Failing Part Triggers 300% Higher Repair Costs When Left Unaddressed

https://precisionhvacrepaircenter.timeforchangecounselling.com/failed-components-in-20-year-old-ac-units-determine-whether-repair-costs-make-financial-sense-1

The HVAC replacement rule is simple: when a component fails and remains unrepaired, it forces other parts to compensate, creating a cascade-failure risk that turns a single repair into a system-wide breakdown