- When the filter of your HVAC system is not changed on time, it could draw dirt into the system. This directly affects your coil along with the other parts of your HVAC unit. The coil needs to breathe and permit the flow from your home to different rooms. As the filter is dirty, the coil is unable to perform its job efficiently. If the filter is not cleaned for too long, the HVAC evaporator coil also gets clogged with dirt, causing water to pour everywhere.
- The condenser of your HVAC system also witnesses a huge build-up of leaves, dirt, grass, and other substances. The condenser coil on the outside has an effect on the HVAC evaporator coil on the indoor unit. In many cases, the evaporator coil fails because of the issues with the condenser oil present outside the HVAC unit.
- When your HVAC unit is eight years or older:
- The evaporator coil is obsolete:
- The unit uses R-22: