A128 - Lower element relay failure to close error

What does A128 mean?

The control board's relay for the lower heating element has failed to close. This error disables the heater, and troubleshooting involves checking wiring and components.

• Control board relay failure
• Wiring issue

Click steps to track your progress.

1. 1

   Disconnect electrical power to the unit.

2. 2

   Inspect all related wiring connections.

3. 3

   Check the resistance of the components if wires are properly connected.

4. 4

   Replace the control board if resistance is acceptable; otherwise, replace the relay.