Amana Microwave Error Code Err5

Err5 indicates a failure in the high-voltage board or one of the touch panels, or it appears when a touch panel button is held continuously for more than 30 seconds. The control system detects an abnormal sustained input signal and displays the error to prevent further operation. A simple disconnect test at the side panel connector can identify which component is at fault.

The microwave should not be used while displaying Err5. The error signals that a control panel or the high-voltage board may be malfunctioning, and operating the unit in this state is not advisable. Disconnect the oven from power until the fault is diagnosed and repaired.

Repair costs vary depending on which component is at fault. Touch panel replacements are generally less expensive, with parts typically ranging from $30 to $90 depending on the panel and model. High-voltage board replacements tend to cost more for both the part and labor, often ranging from $80 to $200 or more when professionally serviced. Getting a diagnosis first helps avoid paying for the wrong part.

The diagnostic steps involve disconnecting and reconnecting a panel connector at J5 on the display board and observing whether the error returns. A knowledgeable DIYer comfortable working with appliance electronics can perform this isolation test. However, replacing the high-voltage board involves components that can retain dangerous charge levels even after unplugging, so professional service is strongly recommended for that repair.

Unplugging the microwave may temporarily clear the display, but Err5 will return if the underlying hardware fault or stuck button condition is still present. The error is not a simple fluke reset by cycling power. The root cause, whether a faulty touch panel or high-voltage board, must be identified and corrected to permanently clear the code.