1 minute guide
Repair or replace?
You do not need to settle the whole question before getting useful information.
Keep the options separate
Ask what failed, what a repair would cost, and whether the repair changes the likelihood of another near-term problem. Then build a replacement option using the same household needs and installation facts.
Compare the real choices
A repair can make sense when the problem is limited and the rest of the system is still worth keeping. Replacement becomes easier to justify when the repair is expensive, the unit is already creating repeated uncertainty, or replacement solves another real problem.
Simple rule
Build the replacement optionDo not let “repair or replace?” stay abstract. Put a repair option and a replacement option next to each other.