Signs to document
- system runs without warming rooms
- outdoor unit repeatedly ices
- auxiliary heat stays on
- breaker or service switch trips
- fuel or burning odor
Heating
First checks and provider questions for heat pumps, furnaces, auxiliary heat, airflow problems, and systems that will not start.
Confirm the thermostat mode and set point, replace a visibly dirty filter, and note any code or unusual sound. Do not keep resetting equipment that trips a breaker or produces smoke, fuel odor, or burning smell.
Compare the written scope
Ask what test isolated the fault and what evidence supports the recommendation. A symptom alone does not identify every underlying cause.
Confirm labor, materials, model numbers, permits, access, disposal, cleanup, startup, and any walls, floors, landscaping, or finishes that another trade must restore.
Request invoices, warranty terms, permit or inspection records when applicable, equipment settings, test results, and clear instructions for operation and maintenance.
Verify before hiring
Homeowner maintenance and professional service checkpoints for heating and cooling systems.
Utility-location guidance before digging or excavation.
State consumer guidance on licensing, references, insurance, contracts, and payments.