Think You Know HVAC Troubleshooting? Prove It.What HVAC issue can be indicated by water pooling around the indoor air handler?71%Next Correct Incorrect A clogged condensate drain causes water to back up and overflow near the air handler. What HVAC issue can be indicated by water pooling around the indoor air handler? Faulty compressor Low airflow due to dirty filters Clogged condensate drain line Refrigerant leak 71%