Test the thermostat
Switch to heating before the first major cold spell and confirm the system starts, runs and responds normally. Review schedules and replace thermostat batteries when applicable.
A few early checks can reduce surprises when colder weather arrives. Focus on safe homeowner maintenance and schedule professional service for combustion, refrigerant, electrical or internal equipment work.

Follow manufacturer instructions and stop if a task requires opening equipment panels or working around electricity, fuel, combustion or refrigerant.
Replace or clean approved filters and keep return grilles unobstructed.
Learn moreRemove leaves and debris while maintaining manufacturer-required clearance.
Learn moreUse the independent installer network to find local service options.
Learn moreUse these points to prepare for a conversation with a qualified professional and the HVACDirect.com product team.
Switch to heating before the first major cold spell and confirm the system starts, runs and responds normally. Review schedules and replace thermostat batteries when applicable.
Check the filter, open supply registers and keep returns clear. Restricted airflow can reduce comfort and create unnecessary system stress.
Notice unusual noises, odors, short cycling, water around equipment or repeated safety shutdowns. Turn the system off when safety is in doubt and contact a qualified professional.
Keep outdoor coils clear of leaves, drifting snow and ice while respecting required clearance. Normal defrost can create temporary steam, but persistent heavy ice deserves professional attention.
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Test it before sustained cold weather so there is time to address problems without waiting for an emergency.
Homeowners can handle basic tasks allowed by the manufacturer, such as filter replacement. Combustion, fuel, venting, electrical and internal service should be performed by a qualified professional.
Yes, heat pumps are designed to provide heat in winter, though operation and backup-heat behavior vary by system and outdoor conditions.