Watch for unusual noises like grinding, squealing, or banging sounds coming from your equipment. These often indicate worn parts that need attention before they fail completely.
Inconsistent temperatures throughout your home, weak airflow from vents, or systems that cycle on and off frequently all signal problems. Rising energy bills without increased usage also indicate declining efficiency that repair can often restore.
Strange smells, especially burning odors or musty scents, require immediate attention. If your system won’t start, produces no heat or cooling, or triggers frequent circuit breaker trips, call for service right away.