Safety first: Unplug the dryer. Heat pump systems contain refrigerant under pressure; do not open sealed refrigeration components yourself.

Clean air paths: Remove and clean the lint filter and condenser/heat exchanger thoroughly. Ensure front and rear air inlets/outlets are not blocked.
Check fan operation: With panels in place, reconnect power and start a cycle. Listen for the circulation fan and compressor starting (a low humming sound). If the fan does not run, the compressor may overheat and trigger E08.
Inspect sensors and wiring: With power off, access the heat pump area and check wiring to the compressor, inverter module, and temperature sensors for loose or damaged connectors.
Do not open sealed system: If the compressor is not running, is excessively noisy, or E08 persists after cleaning and wiring checks, the sealed refrigeration system or inverter is likely faulty. This requires a qualified refrigeration technician with proper tools and certification.

Dryer displays E08; heat pump models may not heat and may stop early

Possible Causes