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What to know about winter operation

Heat pumps move heat rather than creating it through combustion. Performance depends on equipment design, installation, outdoor conditions, and the building’s heat loss.

Technician installing an outdoor heat pump

Heat pumps move heat rather than creating it through combustion. Performance depends on equipment design, installation, outdoor conditions, and the building’s heat loss.

Points to review

  • Some frost can be normal
  • Persistent heavy ice needs attention
  • Keep outdoor airflow unobstructed
  • Review the model’s cold-weather ratings
Know your limits

When to ask a professional

Do not chip ice from the unit or open electrical compartments. If the system cannot maintain comfort or displays a persistent fault, request professional guidance.

Before agreeing to work, ask the provider to explain the diagnosis, itemized scope, diagnostic fees, schedule, and warranty terms in writing.

Keep the next step practical

Record the equipment type if known, when the issue began, and any visible error code. This information can help an independent HVAC provider understand the request, though an on-site diagnosis may still be needed.

For more information, visit the Portland HVAC overview or browse furnace repair, heat pump repair, and boiler repair guides.

Referral disclosure

Furnace Repair is an independent information/referral website, not an HVAC contractor. Provider availability and qualifications must be confirmed directly.

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