AC Repair & Installation in Islamabad

Why AC Units Break Down in Islamabad

Islamabad summers are long and hot — temperatures regularly cross 40°C in June and July, meaning ACs in F, G, and E sector homes run almost non-stop for 4 to 5 months. This continuous load is why most AC faults appear between May and August.

The most common issue is low refrigerant gas — R22 in older units or R410A in newer inverter ACs. Gas loss does not always mean a leak; on older units, small amounts escape naturally over years. But once gas level drops, the compressor works much harder, shortening its life significantly.

The second most common fault is a clogged outdoor unit. In Islamabad dusty spring months, outdoor coils accumulate fine dust that reduces heat exchange efficiency by 20 to 30 percent. Homeowners can partially prevent this by keeping the outdoor unit area clear.

Signs Your AC Needs a Technician

Some AC problems are obvious — the unit stops cooling entirely or makes a loud noise. Others develop gradually and are easy to miss until the fault becomes serious:

• Air blowing but not cold — likely low gas or a dirty outdoor coil
• Unit runs continuously but room never reaches set temperature — low gas or poor room insulation
• Water dripping inside the room — blocked drain pipe or incorrect installation angle
• Loud clicking or grinding noise — capacitor fault or early compressor warning; switch off and call
• Ice forming on indoor unit or copper pipe — low gas causing evaporator coil to freeze
• Error codes on the display — inverter units show fault codes a technician can read correctly
• Electrical tripping when AC starts — faulty capacitor or compressor drawing too much current

What Our AC Repair Process Looks Like

When a RehmanRepairs technician arrives, the first step is always a full diagnosis — not jumping straight to gas charging. Our technician checks refrigerant pressure, inspects the outdoor coil, tests the capacitor, checks electrical connections and the PCB for error codes, and listens to the compressor. This takes 15 to 20 minutes and gives a clear picture of the fault before any price is confirmed.

Once diagnosis is complete, the technician explains the fault and the cost — you decide whether to proceed. Only then does repair work begin. For gas charging, our technicians charge to the correct pressure for your specific unit and confirm cooling temperature before leaving.

AC Maintenance Tips for Islamabad Homes

Regular maintenance reduces the chance of a breakdown at the worst possible time. A few things you can do yourself and a few that need a professional:

• Clean or replace the indoor filter every 4 to 6 weeks during heavy use — a dirty filter is the most common reason for reduced cooling
• Keep the area around the outdoor unit clear — at least 50 cm clearance on all sides for airflow
• Book a professional service once a year before summer — coil cleaning, gas pressure check, and electrical inspection
• Do not set the thermostat below 22°C — it does not cool faster and strains the compressor
• If the unit has not been used all winter, run it briefly before summer to catch issues early