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AC service · Checklist

AC service checklist for technicians (printable)

Customers pay for results they can see. Use this checklist on every split AC service: note the grille temperature before and after, clean the filter, foam clean the indoor coil, clean the condenser, clear the drain, check for leaks and get the customer to sign. Download the printable PDF below.

Format
Printable PDF
Proof
Before and after temperature
Sign-off
Customer signature
Use with
Aerosure range

The checklist

Split AC service checklist
#CheckRecord
1Grille air temperature before service°C
2Filter washed or replacedYes / No
3Indoor coil foam cleaned (Aerosure AC Foam Cleaner)Photo before / after
4Drain tray and pipe clearedYes / No
5Outdoor condenser cleaned (Aerosure AC Coil Shining Concentrate)Yes / No
6Joints leak-checked (Aerosure AC Leak Detector)OK / Leak found
7Coil coated in coastal or industrial sites (Aerosure Coil Saver)Yes / No
8Grille air temperature after service°C
9Customer sign-offName and signature

India sold an estimated 12 to 12.5 million room ACs in FY2025 [1], and the India Cooling Action Plan set a target to train and certify 1,00,000 servicing technicians [2]. A clear checklist helps every service look professional.

Download: Split AC service checklist with customer sign-off (PDF) InnovaChem checklist IC-CL-10. Free, no email needed.

Products used

Quick answers

What should an AC service include?

Filter cleaning, indoor coil cleaning, drain clearing, outdoor condenser cleaning, a leak check, and a before-and-after temperature reading the customer can see.

What should a split AC service always include?

Isolate power, clean or replace the filter, foam clean the indoor coil, clear the drain tray and line, clean the blower wheel, check the outdoor coil, then test cooling and drainage before closing the panel.

How often should filters be cleaned?

Every 1 to 2 months in the cooling season, sooner in dust, according to the US Department of Energy. A clean filter uses 5% to 15% less energy than a clogged one.

Sources

  1. ICRA estimate of room air-conditioner sales in FY2025 (via IBEF)
  2. India Cooling Action Plan (MoEFCC, 2019): targets summary

Stock Aerosure for your service team

Trade pricing for technicians, AMC companies and distributors. We reply within one working day.

AC maintenance numbers to know

Published guidance for room ACs. Follow the AC maker’s manual and the product label.
WhatTypical range
Clean or replace filtersEvery 1 to 2 months in the cooling season, sooner in dust [source]
Energy saved by a clean filter5% to 15% less energy than with a clogged filter [source]
Check the indoor (evaporator) coilEvery 12 months; clean when dirty [source]
Drain lineClear it at each service so water cannot back up [source]
Star labelCompare models by BEE star rating and ISEER [source]

What are the signs an AC needs a service?

  • Weak or uneven airflow from the indoor unit.
  • A musty or sour smell when the AC starts.
  • Water dripping from the indoor unit or a full drain tray.
  • Ice on the indoor coil or the copper pipes.
  • The AC runs longer to reach the set temperature, or bills go up.
  • New rattles, hissing or buzzing from either unit.

What should be in your service kit?

  • Gloves and eye protection
  • Coil foam cleaner and a spray bottle of clean water for rinsing
  • Soft brush or vacuum for loose dust
  • Fin comb for bent fins
  • Drain bag or sheet to catch runoff
  • Wire or blower to clear the drain line
  • Torch, screwdriver set and a way to confirm the power is isolated

Carry the product SDS on your phone and follow the AC maker’s manual for the unit you are servicing.

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