What to schedule
Clean dryer lint path helps keep the laundry system observable and reduces the chance that a small maintenance issue goes unnoticed.
The baseline interval is each use. Usage, pets, dust, water quality, weather and manufacturer instructions can require a different interval.
Stop before the task becomes repair work
Use qualified service for live electrical testing, gas work, refrigerant work, roof access, hidden leaks, structural damage or required disassembly.