Display shows H1, unit may run fan only or delay compressor start.

Note: On some Danby models, H1 is informational, indicating defrost or compressor delay, not a fault.

Steps:

• 1. Allow defrost: Let the unit run in fan mode for 10–15 minutes. H1 may clear automatically once the coil warms.
• 2. Check ambient conditions: If the room is very cold, the unit may limit cooling. Ensure the space is within the operating temperature range specified in the manual.
• 3. Inspect evaporator sensor: If H1 persists in normal temperatures, follow the evaporator sensor checks described for E2/F2 (inspect mounting, wiring, and resistance).
• 4. Clean filter and coil: A restricted airflow can cause coil icing. Clean the air filter and evaporator coil.