The window AC is a self-contained, single-unit appliance that fits into a window opening or wall. It is simpler to service than a split because there are no two separate units, but it is louder and uses more electricity. It is still common in older apartments and shops.
A window AC combines the evaporator, condenser and compressor in a single box. Its maintenance is cheaper and faster than a split because there is no long refrigerant line between two units. Its drawbacks: loud noise and higher power use. The most common faults: unit vibration, water leaks and capacitor failure.
The most frequent faults we encounter while servicing Window — ranked by occurrence.
Loose metal mounting brackets causing vibration
Damaged or dust-clogged rear condenser fan
Clogged front air filter blocking cooling
Weak start capacitor
Incorrect mounting angle preventing drainage
Dusty rear condenser blocking heat exchange
Full removal and washing of the unit plus cleaning the evaporator and condenser
Replacing the capacitor and dust-clogged fans
Re-mounting the brackets with rust-resistant screws
Correcting the mounting angle to ensure drainage
Recharging refrigerant when needed plus leak detection
Replacing the whole unit if the compressor is dead
If the unit is over 10 years old and the compressor has a problem, replacement is more economical. If it is younger or the issue is minor, repair is much cheaper.
The vibration is caused by loose brackets or a fallen rubber gasket. The technician tightens the screws and redistributes the weight.
An incorrect mounting angle, a clogged rear drain hole, or an internal drain pan full of dust.
Yes. We remove the old one, test the window opening, and install the new one with a new metal bracket.
Short cycling — usually a weak capacitor, a temperature sensor giving wrong readings, or an overheating condenser.
On-site diagnosis, clear pricing before any work, and a 6-month written warranty.