Air conditioner leak repair in Palo Alto, CA

A leaking air conditioner is one of the more common issues homeowners run into, and the cause is not always obvious. Water pooling around an AC unit can come from a simple clog or point to something that needs professional attention. Below is an overview of the most common reasons an air conditioner leaks.

Common causes of an air conditioner leak

• Clogged or blocked condensate drain line: The drain line carries away excess moisture. Over time it can clog with dirt, debris, or algae, causing water to back up and leak.
• Damaged or overflowing condensate pan: The pan beneath the evaporator coil collects condensation. If it is cracked, rusted, or misaligned, water can leak.
• Frozen evaporator coil: Restricted airflow from a dirty filter, blocked vents, or low refrigerant can freeze the coil. When it thaws, it leaks.
• Refrigerant leak: A refrigerant leak drops system pressure, which can cause ice to form on the coil and then drip as it melts.
• Improper installation: Incorrect placement of the drain line or poor sealing around the unit can lead to leaks.
• Damaged or faulty components: The condenser coil, refrigerant lines, or seals can develop leaks or wear over time.

Pinpointing the exact cause of an AC leak can be challenging, since several issues produce similar symptoms. It is often best to have a professional technician diagnose and repair the problem so it is resolved properly rather than just treating the symptom. Nur HVAC inspects the system, identifies the source of the leak, and confirms the repair before finishing. This guide suits any homeowner in Palo Alto trying to understand why their air conditioner is leaking and what to do about it.