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Pro Fresh CareAircon service · Chiang Mai

Case reports · Aircon cleaning

Toshiba Inverter aircon clean: an evaporator coil black across the whole panel, clean again

With the cover off, the evaporator fins were black across almost the entire coil, and the drain pan and internal frame had black buildup. The outdoor unit grille outside the house was also clogged with dust in every opening.

Arm, the technician, was responsible for and carried out this job.

อ่านรายงานนี้เป็นภาษาไทย

Service area
Chiang Mai province
Unit
Toshiba Inverter wall-mounted aircon
Type of work
Aircon cleaning
When
4 May 2026

4 photos from the job

The unit when I arrived, during the work and when I finished.

Before1 photo

  • Aircon cleaning, 4 May 2026, before cleaning, photo 1

During1 photo

  • Aircon cleaning, 4 May 2026, during cleaning, photo 1

After2 photos

  • Aircon cleaning, 4 May 2026, after cleaning, photo 1
  • Aircon cleaning, 4 May 2026, after cleaning, photo 2
All photos from this visitSee the full set

What I did

  1. Laid a tarp to catch water and covered the area under the unit
  2. Removed the front panel, filters and drain pan
  3. Washed the evaporator coil until the water running off was clear
  4. Washed the outdoor unit outside the house, then reassembled and tested

Result

The evaporator fins are an even silver again, the frame and drain pan are clean, and the unit is back on the wall and ready to use

About this service

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