AC Not Cooling? Quick Diagnosis in Lahore
Your AC is running but not cooling — we find the real cause: gas shortage, dirty coils, capacitor failure, compressor or sensor faults.
Why is my AC not cooling?
Air flows through the filter and coil, gas carries the heat away, the compressor keeps the cycle moving. Here is where each stage fails — and what we check.
Airflow
Warm room air is pulled across the indoor filters. Choked filters and a dirty blower cut airflow and cooling.
Filter
The washable filter traps dust. Clogged in Lahore’s dusty summers, it starves the coil and slows cooling.
Evaporator coil
Indoor coil absorbs heat from the air. Dust on the coil insulates it — the unit runs long but cools little.
Refrigerant
Gas carries heat to the outdoor unit. Low charge (a leak) means little heat transfer — weak, uneven cooling.
Compressor
Pumps the refrigerant. A weak capacitor, failing compressor or inverter fault stops the cycle entirely.
We measure instead of guessing: air temperature delta, gas pressures, running currents. The fault is confirmed before any work — then quoted upfront.
"AC not cooling" is when the unit runs — sometimes for hours — but the room never reaches temperature or the vents blow warm air. The most common causes in Lahore are low gas from a leak, dirty coils blocking heat exchange, a weak start capacitor, a failing compressor or a sensor fault.
Call when your AC blows warm or barely cool air, cools only at night, cycles on and off rapidly, or airflow from the vents is weak. Beyond cleaning the filter and checking the outdoor unit is not blocked, proper diagnosis needs pressure gauges and electrical testing to avoid damaging the unit.
Because the cause can be anything from a simple capacitor to a failing compressor, the cost depends on the diagnosis. Lahore Cooling Service QJ treats diagnosis and fix as one job quoted upfront, and offers same-day service across Lahore on most days — confirm your slot by call or WhatsApp.
What this service covers
"AC is running but not cooling" is the most common call we get in Lahore. The unit can be running while the cause is gas shortage, a weak capacitor, choked coils, a failing compressor or a sensor problem. We measure, not guess.
Signs you need ac not cooling in lahore — diagnosis & fix
- Indoor unit blowing warm or barely cool air
- Cooling takes hours to reach temperature
- AC cools at night but not during the day heat
- Compressor on/off cycling rapidly
- Airflow is weak from the vents
- Cooling was fine last year, now poor
What we do on the job
- Air temperature delta measurement across the indoor unit
- Pressure gauge check for gas charge
- Capacitor, contactor and compressor running current checks
- Coil and filter condition inspection
- Refrigerant line inspection for kinks or blockages
- Cause confirmed and fixed — then verified cooling
Cost and quote
Diagnosis and fix is one job, quoted upfront. Call with the symptom and your unit type for today's availability.
Common questions
Why is my AC not cooling even though it runs?
The five usual causes: low gas (a leak), dirty coils blocking heat exchange, a weak start capacitor, a failing compressor, or a sensor/control fault. Diagnosis identifies which — that is the first step of the job.
Can I fix "AC not cooling" myself?
You can check the obvious: clean the filter, make sure the outdoor unit is not blocked, and confirm the thermostat/settings. Beyond that, gauges and electrical testing are needed to avoid damaging the unit.
How fast can you come for a not-cooling problem?
We offer same-day service across Lahore on most days — call or WhatsApp in the morning and we will confirm your slot.
Available across Lahore — Shahdara, Badami Bagh, Mughalpura, Cantt, Gulberg, Model Town, Johar Town, Wapda Town, Township, Garden Town and DHA. Based in Muslim Park, Street 3, Shahdara Town, Lahore.
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Call or WhatsApp now — confirm same-day availability and get an upfront estimate for your job.