Safety first: Unplug the dryer. For gas models, also shut off gas supply. Do not continue using the dryer if you smelled burning previously.

Inspect heater wiring: Remove the rear panel and inspect the heating element terminals and wiring harness for signs of burning, melting, or shorting to the cabinet. Repair or replace damaged wires.
Test heating element: Disconnect the element and measure resistance to the cabinet (ground). There should be no continuity. If the element is shorted to ground, replace the heating element assembly.
Access main control board: Remove the top panel and control cover to access the main PCB. Locate the heater relay.
Visual check: Look for burnt spots, cracked solder joints, or melted relay housing. If present, replace the main control board.
Professional service: Because this involves high-current circuits and potential fire risk, if you are not experienced with appliance electronics, contact a qualified Café service technician for board diagnosis and replacement.

Dryer will not start; E09 displayed; sometimes accompanied by a burning smell previously

Possible Causes