The first questions
Is the thermostat calling? Is the indoor blower running? Is the outdoor unit starting? Is airflow weak? Is water or a drain safety issue stopping the system?
Homeowner Guide
What a no-cool diagnostic should answer.
A useful diagnostic should narrow the problem instead of jumping straight to a replacement conversation. Repair pricing should start after that check.
Why the diagnostic matters
No-cool calls can be thermostat, airflow, drain, electrical, or equipment problems. The $95 Springfield Diagnostic gives repair work a real starting point.