AC Leaking Water in Newark

AC Leaking Water in Newark

An AC that leaks is pulling humidity out of the air as designed but failing to drain that water away. The coil condensation collects in a pan and runs out through a drain line. Clog the line, crack the pan, or lose the slope, and the water overflows into the ceiling or floor instead of out the drain.

Newark is built largely on slab tract housing, much of it with the air handler and coil set in the attic. That means the condensate has to travel a long way to reach an exterior wall, and after decades those pans rust and those lines silt up. Plenty of these systems have already been replaced once, so we routinely find an original galvanized pan that has finally corroded through, or a drain line that has never been cleared in the life of the house.

A leaking AC in a Newark tract home is almost always a clogged line, a tired pan, or a missing safety switch. We find which one and put the fix on paper before touching anything.

Common causes

Clogged condensate drain line. Decades of dust and algae narrow the drain line until water backs up over the pan edge. We clear it with a vacuum at the outside termination and flush from the top. On older Newark attic units we check the trap, since a missing or dried-out trap is a common reason these lines clog again.

Rusted-through primary drain pan. Original galvanized pans under decades-old coils eventually rust at the seams and leak even when the drain is clear. We confirm the pan is the source, not the line, and if it is corroded we price a pan or coil-and-pan replacement honestly rather than sealing rust that will reopen.

No float switch on the attic unit. A lot of original Newark installs never got an overflow float switch. Without one, a clogged drain has nothing to stop it before water reaches your ceiling. We test for a working switch and recommend adding one where there isn't. It is an inexpensive part that prevents drywall and insulation damage.

Frozen coil melting off. A dirty filter or low refrigerant can ice the coil while the system runs, then release a surge of water when it cycles off. We read the refrigerant charge on gauges and check airflow. If the coil is freezing, fixing the leak means fixing the charge or the airflow, not merely clearing water.

Failed or undersized drain on a replacement system. When a newer condenser and coil were dropped onto old infrastructure, the existing drain sometimes can't keep up or was reconnected at the wrong slope. We trace the line from pan to exterior, correct the slope, and load-test it before we call it fixed.

How we diagnose it

• Find the air handler in the attic and inspect both drain pans for standing water, rust streaks, and cracks.
• Run water through the pan to confirm the drain line clears it, and vacuum and flush the line if it holds water.
• Verify a float switch is present and trips when the pan fills, and flag its absence on aging systems.
• Check filter condition and refrigerant charge to rule out a freezing coil behind the leak.
• Write up the cause and the repair cost before any work, with the $75 diagnostic credited toward repairs over $200.

$75 diagnostic, credited toward any repair over $200. You get a written quote before any work begins.

AC Leaking Water in Newark: common questions

Nearby and related

AC Leaking Water near Newark: Fremont · Union City · Milpitas .

This is usually a ac repair in Newark job. See our ac repair overview or the Newark service area.