Some cold-weather behavior is normal
A heat pump may briefly enter a defrost cycle in cold weather. You may notice a change in sound, steam near the outdoor unit, or temporary auxiliary heat. The cycle should end and the system should return to heating.
Check settings and airflow
Confirm the thermostat is set to Heat and the set point is above room temperature. Check the filter and make sure returns and supply vents are not blocked. Do not cover the outdoor unit or remove ice with a tool.
Signs that service is needed
Request service if the home stays cold, the outdoor unit is heavily iced, the system runs continuously, the outdoor fan does not operate, or the system repeatedly switches to auxiliary heat. A technician can evaluate airflow, controls, refrigerant-related symptoms, and equipment condition.
Need help with the problem?
HVAC Doctor serves Lexington and the listed Central Kentucky cities. You receive a firm quote before approved repair work begins.
Common questions
Why is my heat pump blowing cool air?
A heat pump can feel less hot than furnace air, but persistent cool air or a home that cannot reach the set point may indicate airflow, control, defrost, or equipment trouble.
Why is my heat pump covered in ice?
Some frost can occur before a defrost cycle. Heavy or persistent ice can restrict operation and needs professional evaluation.
Does HVAC Doctor service heat pumps?
Yes. HVAC Doctor provides heat pump service in Lexington and the listed Central Kentucky service area.