Dehumidifier powers on but compressor never starts (fan only)

Safety first: Unplug the unit before accessing the compressor compartment. Capacitors can hold a charge; discharge safely if handling.

• Step 1 – Confirm settings: Ensure the humidity setpoint is below the current room humidity and that the unit is not in fan-only mode.
• Step 2 – Listen for compressor: After turning on, wait a few minutes. A healthy compressor will start with a brief click and then a steady hum. Repeated clicking without running suggests start component issues.
• Step 3 – Inspect start relay and overload (advanced): Remove the rear cover to access the compressor terminals. The start relay and overload protector are attached to the compressor. Check for burnt smell, discoloration, or rattling parts.
• Step 4 – Test components: With a multimeter, test the overload for continuity and the relay for proper operation. Replace with Danby-compatible start components if defective.
• Step 5 – Evaluate compressor: If new start parts do not get the compressor running, the compressor itself may be seized or the control board may not be sending power.

When to call a technician: Compressor and high-voltage diagnostics should be performed by a professional. If the compressor is locked, replacement of the unit is often more cost-effective.