When your AC is running but not cooling, work through these steps in order: check filter, verify settings, reset the AC, then inspect the outdoor unit.
Data Verified: 2026Step 1: Clean or check the air filter — dirty filter is the #1 cause. Step 2: Check remote settings — mode must be 'Cool', temperature below room temp. Step 3: Turn off from breaker for 5 minutes and restart. This clears temporary faults in many ACs.
Step 4: Go outside and confirm the outdoor unit is running. If silent, the compressor is not working — this needs a technician. If running but cooling is still poor, suspect low gas.
Do not keep running the AC if it is not cooling — a 1.5 ton AC wastes ₹180–540 per day in electricity with zero cooling benefit.
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What is the first step when AC runs but room is not cooling?
Clean the air filter first — it's free and fixes 30–40% of cases. Then check if remote is set to Cool mode with temperature below room temperature.
Should I turn off AC if it's not cooling?
Yes. If AC is not cooling, you're wasting electricity at full rate. Turn it off and diagnose the issue before running again.
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