Kenmore Dryer Error Code Check Exhaust

The Check Exhaust alert means the dryer's built-in airflow monitoring system has detected reduced exhaust performance during a cycle. This is typically caused by a lint clog somewhere in the venting system or by an overloaded drum restricting internal airflow. The dryer displays this alert to prevent overheating and to prompt you to restore proper ventilation before continuing to use the appliance.

Yes, you should address it promptly. Restricted exhaust airflow causes heat to build up inside the dryer beyond normal operating temperatures, which can damage internal components over time. More importantly, lint accumulation in a restricted vent duct is a recognized fire hazard. Stopping use of the dryer until the vent is inspected and cleaned is the safest course of action.

Resetting the dryer may temporarily clear the display, but the alert will return if the underlying cause has not been corrected. The Check Exhaust feature actively monitors airflow during each cycle, so any remaining vent restriction or overloading will trigger it again. The alert should only be expected to stay clear after you have fully addressed the venting issue or reduced the load size.

Start by inspecting the entire vent duct from the back of the dryer to the exterior vent cap, cleaning out any lint accumulation and straightening any kinked sections. Check that the exterior vent cap flap opens freely and is free of obstructions like lint or debris. If the venting system looks clear, try running a smaller load, as an overfilled drum can also trigger this alert. Once the underlying cause is corrected, the alert should clear on the next successful cycle.

If the problem is only lint buildup in the duct, a DIY cleaning with a dryer vent brush kit typically costs between $15 and $40 in materials. Professional dryer vent cleaning services generally range from $80 to $175 depending on duct length and accessibility. If damaged or improperly sized ductwork needs to be replaced, parts and labor can range from $100 to $300 or more depending on the scope of the work.