AC ProblemTroubleshooting Hub

Your AC is running but the room stays warm. 12 common causes and step-by-step fixes from an HVAC technician.

The compressor is on but the air feels warm. Learn about gas leaks, dirty coils, and fan motor failures.

Extreme heat pushes your AC beyond its limits. Understand capacity mismatch, high ambient temperatures, and insulation gaps.

Ice buildup on coils and pipes. Caused by dirty filters, low refrigerant, or poor airflow. Fix it before it damages the compressor.

No power, no response, completely dead. Check the breaker, remote, capacitor, and internal wiring with our urgent fix guide.

Dead batteries, sensor blockage, or signal interference. Quick fixes you can try at home in under 5 minutes.

Water dripping inside the room or from the outdoor unit. Blocked drain pipes and dirty filters are the usual suspects.

Buzzing, rattling, clicking, or hissing. Each sound tells a different story. Diagnose the noise and apply the right fix.

Musty, burning, or rotten odors from your AC. Mold, bacteria, dead pests, or electrical faults — identify and eliminate the smell.

Dirty water, mold on pads, or poor maintenance causing foul odor from your air cooler. Easy cleaning steps to make it fresh again.

Overfilled tank, cracked plastic, loose pipes, or pump overflow causing water to drip from your air cooler.

Fan not blowing properly? Check for damaged blades, motor issues, blocked vents, or low voltage.

Water not reaching the pads? Clogged pump, burnt motor, low water, or wiring fault — fix it step by step.

Rattling, squealing, or grinding from your air cooler? Loose screws, fan imbalance, motor bearings, or improper placement — silence it now.

Power returned but AC won't start? Voltage surge damage, capacitor failure, or compressor pressure lock — safe restart protocol and protection guide.

Fan not spinning, loud noise, compressor vibrating? Diagnose outdoor unit issues by sound type and get repair cost estimates.