HVAC Leaking Water

Professional HVAC Leaking Water in Asheville & Western NC

Water collecting near your HVAC equipment is a problem that demands quick action — structural water damage and mold growth can begin within 24 to 48 hours of sustained moisture.

What Causes an HVAC System to Leak Water

A blocked condensate drain line is the most frequent cause. During cooling, your AC extracts moisture from indoor air; that water collects in a drain pan and exits through a PVC drain line. Over time, algae and biofilm accumulate inside the line and obstruct flow, causing the pan to overflow. Additional causes include a frozen evaporator coil that melts faster than the drain can handle, a cracked or corroded drain pan, incorrect pitch on the drain line, or a failed condensate pump.

Quick Things You Can Check

Find the condensate drain line — typically a PVC pipe running from the air handler through an exterior wall. If water is not dripping from the open end while the system runs, the line is probably obstructed. Shut the system off to stop condensate production and use towels to contain existing water. Also check the air filter: a heavily restricted filter can freeze the coil, and the resulting thaw dumps more water than the drain system can handle.

When This Becomes a Serious Problem

Flooring, drywall, and ceiling repairs from water damage add up quickly, and mold colonies can establish themselves within 24 to 48 hours of persistent moisture. If the leak is coming directly from the AC unit and you are also noticing diminished cooling or ice forming on the coils, the problem extends beyond a simple drain clog.

When to Call for HVAC Repair in Asheville

When water is actively flowing and you cannot clear the blockage yourself, professional service is urgent. Quality Mechanical provides same-day AC repair in Asheville and heating repair in Asheville — we flush drain lines, replace deteriorated drain pans, and apply algae inhibitor treatment to reduce the chance of future clogs.