Repair guide
Water Through the Ceiling Under an Attic Air Handler: A Long Island Guide
Why attic air handlers leak through ceilings in Long Island homes, what to switch off right away, and what a repair visit checks. A technician diagnoses the problem on site and gives a written quote before any approved work begins. Gotham Home Services Inc. holds NYC home improvement contractor license 2132513-DCWP.
Quick answer
When water comes through a ceiling below an attic air handler in a Long Island home, the usual cause is a blocked condensate drain that overflows the primary pan and then the secondary pan beneath the unit. A rusted secondary pan, a failed float switch, a disconnected drain fitting, a frozen coil melting off, or sweating ductwork can do the same. Switch the system off at the thermostat and the service switch, catch the water and keep people clear of a sagging ceiling. Gotham Home Services, based in Roosevelt, NY, repairs attic and basement air handlers across Long Island.
Published · Updated
Many Long Island houses, especially capes and colonials that added central air after they were built, have the air handler in the attic. When its drainage fails, the first sign is often a stain or drip on the ceiling below. For booking, see HVAC repair on Long Island and in NYC.
Key points
- 1.Switch the system off at the thermostat and at the service switch beside the air handler
- 2.A blocked condensate drain is the most common cause of attic overflows
- 3.The secondary pan and float switch are a backup, and both can rust or fail
- 4.A secondary drain that drips over a window or eave is a warning to call for service
- 5.Sweating ducts and a coil that froze and melted can also wet the ceiling
- 6.Keep people out from under any section of ceiling that is sagging
In more detail
In cooling season the coil inside the air handler produces water that drains from a primary pan through a pipe to a drain or outside. Algae, dust and debris slowly narrow that pipe until it backs up. Most attic installations have a secondary pan underneath the unit as a backup, sometimes with its own drain line ending somewhere visible, such as above a window, so a homeowner notices it dripping. Others rely on a float switch that cuts power when water rises. If the secondary pan is rusted through, its drain is also clogged, or the float switch has failed, the water goes into the ceiling.
Not every attic leak is the drain. A clogged filter or low refrigerant can freeze the coil, and when the ice melts it can overwhelm the pans. A system that is also turning on and off oddly may have the float switch tripping, which is covered in short cycling causes. Uninsulated or damaged ductwork in a hot attic can sweat enough to drip as well.
Turn the system off at the thermostat and at the service switch next to the air handler, set out a bucket, and keep people out from under a ceiling that is bulging or sagging. Then call. A repair visit clears the primary drain, inspects the secondary pan and float switch, checks the coil and filter, and looks at the duct insulation. Steps for any HVAC failure are in what to do before the technician arrives.
FAQ
Frequently asked questions
What is the short answer on water Through the Ceiling Under an Attic Air Handler?
When water comes through a ceiling below an attic air handler in a Long Island home, the usual cause is a blocked condensate drain that overflows the primary pan and then the secondary pan beneath the unit. A rusted secondary pan, a failed float switch, a disconnected drain fitting, a frozen coil melting off, or sweating ductwork can do the same.
What are the key points to remember?
Switch the system off at the thermostat and at the service switch beside the air handler. A blocked condensate drain is the most common cause of attic overflows. The secondary pan and float switch are a backup, and both can rust or fail. A secondary drain that drips over a window or eave is a warning to call for service. Sweating ducts and a coil that froze and melted can also wet the ceiling. Keep people out from under any section of ceiling that is sagging.
Does Gotham Home Services serve my area?
Yes. Gotham Home Services serves Manhattan, Brooklyn, Queens, the Bronx, Staten Island and Long Island.
How do I get a quote?
Call (516) 348-5145 or request a quote online. A technician diagnoses the problem on site and gives a written quote before any approved work begins.