How to Maintain Your Rented AC in Mumbai to Avoid Extra Charges and Maximize Cooling

So you have rented an AC from Patel Refrigeration and your room is finally cool and comfortable. Now the question is — how do you take care of it properly so that it keeps performing well and you don't face any unexpected issues or charges when you return it?

While our rental agreement covers all major servicing, repairs, and gas-related issues, the renter is responsible for basic day-to-day care of the unit. This blog is a practical guide to help you get the most out of your rented AC while keeping it in good shape throughout the rental period.

Why Basic Maintenance Matters for Rented ACs

A rented AC that is poorly maintained will:

•       Cool less effectively, meaning higher electricity bills for you

•       Be more prone to breakdowns, causing inconvenient downtime

•       Potentially attract damage-related charges if returned in poor condition

•       Circulate dust, allergens, and mold spores — affecting your health

Basic maintenance is simple, takes minimal time, and makes a significant difference to both performance and your wallet.

Tip 1: Clean the Air Filter Every 2–3 Weeks

This is the single most important maintenance task for any AC — rented or owned. The air filter in the indoor unit traps dust, pet hair, and particles from the room air. When the filter gets clogged, airflow is reduced, cooling efficiency drops, and the unit has to work harder — consuming more electricity.

How to clean it: Open the front panel of the indoor unit (it typically slides up or flips open without tools). Remove the filter (usually a grey mesh). Rinse it under running water, let it dry completely, and re-insert it. Never run the AC without the filter — it will allow dust directly into the evaporator coils.

Tip 2: Keep the Area Around the Outdoor Unit Clear

The outdoor unit needs clear airflow to expel heat efficiently. If the outdoor unit is surrounded by clutter — furniture, boxes, plants, or other objects — it will overheat and lose cooling efficiency. Ensure at least 30–50 cm of clear space around all sides of the outdoor unit.

In Mumbai's monsoon season, ensure the outdoor unit is protected from direct water intrusion from overhanging gutters or leaking pipes — but do not cover it during operation.

Tip 3: Set the Temperature Sensibly

Setting your AC to 18°C does not cool the room faster — it just makes the compressor work continuously at maximum load. For optimal efficiency and longevity of the unit, set the temperature at 24°C–26°C and let the AC reach that temperature before adjusting.

Use the sleep mode at night — it gradually increases the set temperature by 0.5°C per hour, keeping you comfortable while reducing electricity consumption and compressor load.

Tip 4: Close Doors and Windows When the AC Is Running

This seems obvious but is frequently neglected — especially in Mumbai's ventilated chawls and older apartments. Every gap allows cool air to escape and hot humid air to enter, making the AC work much harder. During AC operation, ensure all doors, windows, and ventilation gaps are closed. Use curtains or blinds on sun-facing windows to reduce heat gain.

Tip 5: Do Not Block the Indoor Unit's Air Vents

The indoor unit draws room air in from the top and blows cooled air through the front vents. Placing furniture, curtain rods, or other objects directly in front of or above the indoor unit restricts airflow and significantly reduces cooling performance. Keep a clear space of at least 50 cm directly in front of and around the indoor unit.

Tip 6: Check the Drain Pipe Periodically

The indoor unit produces condensation as it cools and dehumidifies the air. This water drains out through a drain pipe. If this pipe gets blocked — by dust, algae, or physical obstruction — water will overflow and drip from the indoor unit, potentially damaging walls and flooring.

Periodically check that the drain pipe outlet (usually visible outside your window or on an exterior wall) is clear and dripping water normally when the AC is running. If you notice water dripping from the indoor unit instead of the drain pipe, contact Patel Refrigeration immediately.

Tip 7: Do Not Attempt DIY Repairs

If the AC is not cooling properly, making unusual sounds, or showing an error code on the display — call Patel Refrigeration. Do not attempt to open the outdoor unit, tamper with the refrigerant pipes, or dismantle any internal components. DIY repairs on a rented unit can result in damage charges and may also void any ongoing warranty.

Our team is available to respond to service calls quickly — just WhatsApp us with a description of the issue and we will schedule a visit.

What Damage Could Lead to Extra Charges?

Our rental agreement covers normal wear and tear, but certain types of damage are the renter's responsibility:

•       Physical damage to the indoor unit — cracks, dents, or broken panel covers

•       Damage to the outdoor unit from improper handling or obstruction

•       Blocked drain pipe causing water damage due to neglect

•       Damage caused by power surges due to non-use of a voltage stabilizer

Using a stabilizer (especially for older buildings in Mumbai with voltage fluctuations) is strongly recommended to protect the unit.

Conclusion

Maintaining your rented AC is straightforward — clean the filter regularly, give the outdoor unit space to breathe, set sensible temperatures, and keep doors and windows closed. Following these simple tips will keep your unit running efficiently, your room cool, and your electricity bill in check throughout the rental period.

Have questions about your rented AC or need a service call? Contact Patel Refrigeration anytime.

Call/WhatsApp: +91 9820078793