O'Fallon HVAC Repair | Heat Pump & Air Handler Service | Allied Heating & Air

A thorough plumbing inspection checks for issues like clogged condensate drain lines from your air handler. If this line backs up, it can cause water damage and even shut down your HVAC system. For homes with heat pumps, we also verify that related plumbing, like lines for geothermal systems, is intact. Catching these problems early during an inspection prevents bigger, more expensive HVAC failures down the line.

While the reversing valve is a common culprit, it's wise to rule out other factors. During a service call, our technicians will check the heat pump's operation and also inspect the condensate drain system. A blockage here can cause the unit's safety switch to trip, mimicking a valve problem. Our comprehensive approach ensures we fix the root cause, not just the symptom, for a reliable repair.

First, check and replace your air filter if it's dirty—a clogged filter is a frequent cause. If that doesn't help, it's time to call. A failing fan motor or a blockage in the ductwork or drain line could be the issue. Our technicians will perform a full inspection, including checking the drain pan and line for clogs that can impede airflow, to diagnose and safely repair the problem.