Machine will not start a brew cycle; pressing brew button does nothing, but machine is powered and hot.

Safety: Unplug before accessing the control panel or switches.

• Test other functions: Verify that steam and hot water functions work. If only brew is affected, suspect the brew switch circuit.
• Inspect brew switch: Remove the front panel and check the brew button or lever microswitch. Test for continuity when pressed. Replace if defective.
• Check wiring: Ensure the switch wires are firmly connected to the main board and not broken.
• Control board: If the switch tests good but the board does not respond, the input channel on the control board may be faulty and require replacement.