Indoor water leakage is one of the most common complaints we get — and usually one of the simplest to fix, provided it’s caught early.
Common Causes
- A blocked or disconnected drain pipe, which is the most frequent cause.
- A dirty air filter causing the coil to freeze and then drip as it thaws.
- Incorrect installation angle, causing condensate to pool instead of draining out.
- A cracked or overflowing drain pan inside the unit.
What You Can Check Yourself
Turn the unit off, remove the front panel, and check whether the filter is visibly dusty — cleaning it resolves a surprising number of leak complaints. While the panel is open, also glance at the drain outlet for visible blockage, and make sure nothing (curtains, furniture, a bent bracket) is tilting the indoor unit out of its intended level.
Why the Drain Line Matters More Than People Think
The condensate drain line is a narrow tube, and over months it can accumulate algae, dust, or insect debris until it’s partially or fully blocked. Once that happens, water backs up inside the unit and finds the nearest gap to escape through — usually straight down the front panel and onto the floor or wall below.
When to Call a Professional
If cleaning the filter doesn’t stop the dripping within a day, or if you notice water stains spreading on the ceiling or wall around the unit, it’s time to call for a proper inspection. Left unaddressed, a persistent leak can damage plaster, encourage mould, and in some cases damage the electronics inside the indoor unit itself.