What Problems Affect Evaporator Coils?
Unfortunately, evaporator coils can develop problems. The coils have to cope with swings in temperature, from freezing to hot, that would stress any mechanical part. The more common problems include rusting, leaks, and freezing. Because coils are under constant stress, many manufacturers require regular inspections by a qualified heating and cooling technician to keep the warranty valid.
Signs that a coil may have failed include water dripping onto the floor near a heater. Frozen parts in an AC unit, as well as water dripping from your AC unit or from the pipes around it, also indicate evaporator coil failure. Other trouble signs include vents blowing cool air when the heater is on, or warm air when the AC unit is active.
Should You Repair or Replace Your Evaporator Coil?
Even a handy homeowner can have trouble fixing or replacing an evaporator coil. In most cases, it’s best to leave repair and maintenance to a technician. Contact us for an inspection of your system to accurately diagnose the problem.
Our technicians will advise you on whether to repair or replace the part. If the coil is still under warranty, replacement is usually recommended. Leaks can generally be repaired; however, once a unit leaks it is likely to develop further leaks even after repairs. For these reasons, we often recommend replacing any malfunctioning evaporator coils.