Maytag Dryer Error Code 18

Error code 18 means the dryer's control board recorded the motor thermal protector opening and resetting more than 5 times during a single cycle. The thermal protector is a safety device inside the drive motor that shuts the motor off when it overheats. Triggering it more than 5 times signals a persistent overheating problem, either from restricted airflow, mechanical drag on the drum, a blocked blower wheel, or a motor that is beginning to fail.

Start by cleaning the lint screen, the full length of the exhaust duct, and the exterior vent termination. If airflow is clear, inspect the drum for binding by rotating it by hand with the dryer unplugged; it should spin with light, even resistance. Check the blower wheel for lint buildup or damage. If none of those steps resolve the issue, the drive motor likely needs replacement, which is a moderate-difficulty repair requiring disassembly of the dryer cabinet.

Yes, a clogged vent is one of the most common reasons code 18 appears, and clearing it can resolve the error entirely. Restricted exhaust airflow traps heat inside the drum and forces the motor to work harder, which triggers the thermal protector repeatedly. Clean the lint screen, the duct from the dryer to the wall, and the exterior vent cap. If the code returns after a thorough cleaning, the problem lies with a mechanical component or the motor itself.

No, you should not continue running the dryer with code 18 active. The motor thermal protector is tripping repeatedly because the motor is overheating, and continuing to operate the dryer risks permanent motor failure or, in a worst case, a fire if the root cause involves blocked airflow and accumulated lint. Stop using the dryer until you identify and correct the underlying problem.

If the fix is a vent cleaning or clearing a blocked blower wheel, costs are minimal, typically under 30 dollars in supplies if you do it yourself. A drum glide or seal kit runs roughly 20 to 50 dollars in parts and is a manageable DIY repair. A replacement drive motor is the most expensive scenario, with parts ranging from 80 to 200 dollars depending on the model, plus 100 to 200 dollars in labor if you use a technician. Diagnosing the root cause before ordering parts avoids unnecessary expense.