What steps should be taken to safely test dryer operation after vent cleaning?

What steps should be taken to safely test dryer operation after vent cleaning?

• A. Unplug the dryer and test only with the door open
• B. Reconnect power, run the dryer on a cold cycle and observe airflow
• C. Reconnect power, run the dryer on a heat cycle and observe airflow from exterior vent
• D. Power cycle the breaker and ignore exterior vent

Answer: (C)

Testing after vent cleaning should verify both heating and proper exhaust. Reconnecting power and running a heat cycle engages the dryer's heater and blower, producing warm air that is moved through the vent. Watching the exterior vent during this test shows whether air is actually being exhausted outside and whether the vent path is clear, unobstructed, and not leaking back into the space. A cold cycle wouldn’t prove the exhaust system works under real operating conditions, and testing with the exterior vent ignored or power cut would miss a critical safety check. So, the correct approach is to reactivate power, run a heat cycle, and observe airflow from the exterior vent.

Testing after vent cleaning should verify both heating and proper exhaust. Reconnecting power and running a heat cycle engages the dryer's heater and blower, producing warm air that is moved through the vent. Watching the exterior vent during this test shows whether air is actually being exhausted outside and whether the vent path is clear, unobstructed, and not leaking back into the space. A cold cycle wouldn’t prove the exhaust system works under real operating conditions, and testing with the exterior vent ignored or power cut would miss a critical safety check. So, the correct approach is to reactivate power, run a heat cycle, and observe airflow from the exterior vent.