AC Maintenance Guide

How Often Should You Service Your AC in Dhaka?

6 min read
Updated May 2025
Dhaka, Bangladesh

Ask ten different AC mechanics in Dhaka how often you should service your AC, and you’ll likely get ten different answers — most of them designed to get you to book more services than you need. At Hoque Refrigeration And Engineering Works Ltd., we believe in honest advice, so here’s the real answer: it depends on how you use it, your room environment, and Dhaka’s specific climate conditions.

This guide gives you a clear, practical maintenance schedule — monthly tasks, seasonal checks, and annual professional services — so your AC stays efficient, lasts longer, and doesn’t break down on the hottest day of the year.

Why Dhaka’s Climate Makes AC Maintenance More Critical

Standard global recommendations say to service your AC once a year. In Dhaka, that’s not enough. Here’s why:

  • High dust & air pollution: Construction activity, unpaved roads, and dense traffic mean filters clog 3–4x faster in Dhaka than in cleaner cities.
  • Long usage hours: Most Dhaka households run ACs 10–16 hours a day during summer, versus 4–6 hours in milder climates.
  • Extreme temperature swings: Going from 40°C outdoor heat to running a heavily loaded compressor stresses components far more than in moderate climates.
  • High humidity during monsoon: Monsoon season (June–October) creates conditions for mold growth inside the indoor unit if not cleaned beforehand.
  • Voltage fluctuations: Dhaka’s inconsistent electricity supply puts additional stress on control boards and capacitors.
💡 The Short Answer In Dhaka, most homes should clean their AC filter every 15–20 days during summer and get a professional deep service at least twice a year — once before summer (March–April) and once after monsoon (October–November).

Recommended AC Service Frequency for Dhaka

Every 15–20 Days (During Summer)

Owner task — 10 minutes

  • Clean the indoor unit air filter
  • Wipe down the indoor unit vents
  • Check drainage tray for standing water or mold
Every Month (Year-round)

Owner task — 15 minutes

  • Clean filter if not done recently
  • Inspect outdoor unit — remove leaves, dust, debris
  • Check for unusual sounds or smells
  • Test the remote and thermostat accuracy
Twice Per Year (Professional Service)

Professional — 2–3 hours per unit

  • Deep clean of indoor and outdoor coils
  • Drain line flush and drainage test
  • Refrigerant pressure check
  • Electrical connections inspection
  • Fan motor and blower cleaning
  • Thermostat calibration and remote test
Once Per Year (Full Inspection)

Professional — 3–4 hours per unit

  • Everything in bi-annual service, plus:
  • Compressor health check
  • Capacitor and electrical component testing
  • Pipe insulation inspection
  • Full refrigerant cycle analysis
  • Bracket and mounting stability check

Seasonal AC Maintenance Calendar for Dhaka

Dhaka’s year breaks into three AC-relevant seasons. Here’s what to prioritize in each:

☀️
Pre-Summer (March–April)
  • Full professional AC service
  • Gas pressure check
  • Coil deep clean
  • Electrical check
  • Filter clean / replace
🌧️
Monsoon (June–Sept)
  • Filter clean every 15 days
  • Drain line check (mold risk)
  • Outdoor unit: check for water pooling
  • Use Dry mode on humid days
🍃
Post-Monsoon / Winter (Oct–Feb)
  • Second professional service
  • Mold inspection inside unit
  • Clean outdoor unit
  • Run AC monthly even if not needed

AC Maintenance Tasks You Can Do Yourself

These tasks require no tools and no technical knowledge. Every Dhaka homeowner can do them:

  • Clean the filter: Open the front panel, remove the mesh filter, rinse with clean water, air-dry completely, reinstall. Takes 10 minutes.
  • Wipe indoor unit vents: Use a dry microfibre cloth monthly on the vents and outer casing to prevent dust buildup.
  • Clear the outdoor unit area: Remove leaves, packaging, dust, or objects placed near the condenser. Ensure at least 30cm clearance.
  • Check the drain outlet: The small plastic drain pipe exiting your wall should drip water when the AC runs on cool mode. If it’s dry or clogged, call a technician.
  • Run the AC monthly in winter: Even if you don’t need cooling, run the AC on fan mode for 20 minutes every 3–4 weeks to prevent internal seals from drying out.

What Needs a Professional AC Technician

Never attempt these without proper training and equipment:

  • Cleaning internal evaporator and condenser coils
  • Checking or refilling refrigerant gas
  • Electrical component testing (capacitors, control boards)
  • Compressor diagnostics
  • Drain line chemical flush
  • Pipe re-insulation or replacement

For professional AC cleaning in Dhaka or a full annual inspection, our team at Hoque Refrigeration And Engineering Works Ltd. covers all Dhaka areas, every day from 8AM to 12AM.

Annual AC Maintenance Cost in Dhaka

Service Frequency Approximate Cost
Basic cleaning (filter + vents)Every 1–2 monthsDIY – Free
Professional deep clean (indoor + outdoor)Twice a year৳800 – ৳1,500 per unit
Full inspection + electrical checkOnce a year৳1,500 – ৳2,500 per unit
Gas pressure check (without refill)Once a year৳300 – ৳500
Gas refill (if needed)As needed৳1,200 – ৳2,800
⚠ Signs You’re Overdue for a Service If your AC is making rattling or grinding sounds, producing a musty smell, taking longer than 20 minutes to cool a room, or leaving water stains on the wall below the indoor unit — it’s well past time for a professional inspection.

Ready to Schedule Your AC Service in Dhaka?

Hoque Refrigeration And Engineering Works Ltd. offers professional AC maintenance for all major brands — Gree, LG, Samsung, General, Midea, Daikin, and more. Same-day bookings available.

Book AC Service Now → Call directly: 01910528424

FAQ

At minimum, twice a year — once before summer (March–April) and once after monsoon (October–November). For homes running the AC 10+ hours a day or in dusty areas, three services a year is better.

Skipping service for years leads to severely reduced cooling, mold growth inside the unit, significantly higher electricity bills, increased risk of compressor failure, and potentially a costly repair or full unit replacement. Regular maintenance is always cheaper than emergency repair.

Yes — significantly. A clean AC with properly maintained coils and correct refrigerant levels uses 15–30% less electricity than a neglected one running at the same settings. In a Dhaka summer where the AC runs 12+ hours a day, this adds up to hundreds of taka saved monthly.

Yes. During monsoon, use the “Dry” or “Dehumidifier” mode on humid but not-too-hot days — this removes moisture without over-cooling. It also keeps the indoor unit dry and reduces mold risk. Ensure your drain line is clear before monsoon season starts.

SM. Mahmud – Owner of Hoque Refrigeration And Engineering Works Ltd.
SM. Mahmud Owner & AC Technician — Hoque Refrigeration And Engineering Works Ltd.

Established in 2015, Hoque Refrigeration And Engineering Works Ltd. has been maintaining and repairing AC systems across Dhaka for over a decade. SM. Mahmud shares practical advice to help homeowners protect their investment.

Hoque Refrigeration And Engineering Works Ltd. House-47, Road No. 41, Gulshan Ave, Dhaka 1212  |  01910528424  |  contact@acservicedhaka.bd  |  Service Hours: Every Day 8AM – 12AM
Scroll to Top