Why Is My Heat Pump Running But Not Cooling Properly?

If your heat pump runs but isn’t cooling, likely causes include a dirty filter, incorrect thermostat settings, low refrigerant, a clogged outdoor coil, or a stuck reversing valve. Twice-yearly tune-ups help prevent these issues in Bloomington–Normal homes.

Quick checks:

• Set thermostat to Cool and Auto; lower the setpoint.
• Replace or clean the air filter.
• Clear debris from the outdoor unit and coils.
• Open supply and return vents in each room.
• Look for ice on lines; turn system off if frozen.
• If cooling is still weak, schedule service.

Updated: 2025-11-06

Need help in Normal, IL? Call (765) 262-5364 or book online.

Internal link: See our Bloomington–Normal page. https://www.summersphc.com/bloomington-normal/