Washer-dryer takes excessively long to complete cycles.

Safety first: Unplug the appliance before performing internal checks.

Step-by-step checks:

• Observe behavior: Note whether the delay occurs during heating, draining, or spinning.
• Check heater: Verify water heating, as described in heater-related entries; a failed heater will cause long cycles.
• Check drainage and spin: Clean the pump filter and ensure proper spin performance.
• Load and program: Avoid overloading and ensure appropriate program selection for the fabric type.