PTAC cleaning in New York City
The unit under your window heats and cools the room with no ducts at all, so the dust it catches stays inside it. We slide the PTAC out of its wall sleeve and clean the filter, both coils, the blower wheel, the drain pan and the sleeve.
PTAC cleaning, explained
A PTAC, short for packaged terminal air conditioner, is a self-contained heating and cooling unit that sits in a metal sleeve through the outside wall, usually under a window. The room side has a front cover, a filter, a coil and a blower wheel. The outdoor side has a second coil, a fan and a grille facing outside. The working parts sit on one chassis that slides out of the sleeve.
New York is full of them: apartment buildings, condos, hotels and offices. The outdoor half breathes city air, so soot, grit and feathers collect on the outdoor coil. The indoor half takes in room dust, pet hair and lint from the curtains hanging over it. Most people rinse the filter now and then. The parts behind it are almost never touched.
Each part fails in its own way. A matted indoor coil means weak air. A blower wheel caked with dust, sometimes with mold on it, means a musty smell. A drain pan full of slime means water on the floor or down the wall. Debris around the outdoor fan means rattles and scraping.
What is included
- Power disconnected and the chassis slid out of the wall sleeve
- Filter and front cover washed
- Indoor and outdoor coils cleaned and rinsed
- Blower wheel and outdoor fan cleaned
- Drain pan and its drain openings cleared
- Wall sleeve cleaned out and the outdoor grille checked
- Photos before and after
Signs you need it
- A musty smell when the unit starts
- Weak air even on the high fan setting
- Water dripping onto the floor or staining the wall below the unit
- Rattling, buzzing or scraping noise
- Dark specks on the front cover or blown into the room
How the job goes
Power off and open
Power to the unit is disconnected, the front cover and filter come off, and we photograph the coil, the wheel and the pan as found.
Slide out the chassis
The chassis is pulled out of the sleeve and moved to a spot where it can be washed without wetting the room.
Cover the electrics
The control box and the motors are covered before any water is used.
Wash coils and wheel
Both coils are cleaned and rinsed, the blower wheel and outdoor fan are cleaned blade by blade, and the pan is flushed until its drain openings run clear.
Clean the sleeve
With the chassis out, the empty sleeve is vacuumed, its drain path is cleared and the outdoor grille is checked for anything blocking it.
Dry, refit and test
The unit is left to drain, slid back into the sleeve and reconnected. We run it in cooling and heating and listen for noise.
Why it matters
A PTAC has no ductwork. Room air passes through the same coil and wheel over and over, usually right beside a bed, a sofa or a desk. Mold on the wheel or in the pan puts a musty smell straight into the room and can aggravate allergies.
Water is the costly part. A blocked pan drips onto wood floors, runs down inside the wall and can reach the apartment below. Dirty coils also make the unit run much longer to cool the room, which shows up on the electric bill and wears on the compressor.
PTAC cleaning: common questions
Is rinsing the filter enough?
It helps, and you should keep doing it. But the filter is only the first layer. Fine dust gets past it to the coil, the wheel and the pan, where it stays damp and cannot be reached without taking the unit out of the wall.
Why is my PTAC leaking into the room?
Usually the drain pan or its drain openings are blocked with slime and dirt, so the water backs up and spills on the room side. Cleaning clears that. If the sleeve itself is rusted through or damaged, we show you, because that is a repair.
Do I need the building's permission?
In a rental, the unit normally belongs to the building, so speak to the super or management first. In a condo or co-op it is usually yours, though the sleeve and the outside grille may be the building's. Tell us which applies when you call.
Can you clean many units in one visit?
Yes. Buildings, hotels and offices often have one unit per room, and they can be cleaned one after another. Tell us how many units there are and when the rooms can be entered. For spaces that also have ductwork, see commercial air duct cleaning.
Related air duct services
Tell us what is going on. We will tell you what it needs.
Call or text with your ZIP code and a line about the problem. For dryer vents, text DRYER and your ZIP.