Replacement recommendations should come with an explanation.
You should be able to understand what failed, what repair options exist, what risks remain, and why replacement is being recommended instead.
Ask whether the failure is isolated or part of a larger pattern.
One failed component is different from repeated breakdowns, multiple aging components or chronic comfort problems.
Ask what the repair buys you.
A useful repair conversation includes expected reliability, warranty considerations, system age and whether the underlying issue is likely to return.
Ask whether sizing, airflow or ductwork are part of the problem.
Replacing equipment without addressing a system-level comfort problem can leave the homeowner disappointed with a brand-new unit.
It is reasonable to get another diagnosis.
A second opinion is especially useful when the proposed replacement is expensive, urgent or not clearly explained.