Maytag Dryer Error Code D22

D22 is a Latched Heat Relay Fault. It means the control board detected that the heat relay contacts were closed and passing current to the heating circuit when the control had commanded heat to be off. As a safety response, the control immediately opens an interposing relay to cut power to the heating system and shuts down operation.

No, it is not safe to continue operating the dryer with a D22 fault active. This error indicates the heating system may not be controllable, meaning heat could run continuously and without limit. The control board shuts the dryer down specifically to prevent a dangerous overheating condition, and that protection should not be bypassed.

Start by disconnecting power to the dryer and locating the heat relay, which may be a discrete component or integrated onto the main control board. With the power off, use a multimeter to test the relay contacts for continuity. If the contacts show continuity when the relay coil is not energized, the contacts are welded shut and the relay has failed. Also inspect the wiring harness connected to the heat circuit for any signs of damage or shorting that could cause a false fault reading.

A simple reset is unlikely to clear D22 permanently because the fault points to a mechanical failure inside the relay itself, specifically contacts that are physically stuck together. Even if a reset temporarily restores operation, the underlying relay fault remains and the dryer could overheat. The relay or control board should be inspected and repaired before continued use.

Repair costs depend on whether the faulty relay can be replaced independently or requires a full control board replacement. A standalone relay component is relatively inexpensive, typically in the range of $5 to $30 in parts. If the control board must be replaced as a complete assembly, parts alone can range from $100 to $300 or more, plus labor if a technician is hired.