Dehumidifier displays E5 and compressor does not run

Safety: Unplug the unit. The compressor and surrounding components can be very hot; allow cooling before touching.

Steps:

• Allow cool-down: Leave the unit unplugged for at least 30–60 minutes to let the compressor thermal protector reset.
• Check placement: Ensure the dehumidifier has adequate clearance on all sides (at least 12 inches) and is not placed in a confined space or near a heat source.
• Clean filter and coils: Remove and wash the air filter. Inspect the condenser coil (warm coil near the compressor) for dust buildup and clean gently with a soft brush or vacuum.
• Restart test: Plug the unit back in and set it to continuous mode. Listen for the compressor starting after the fan. If E5 reappears quickly, continue.
• Inspect compressor start components: With the rear panel removed, locate the compressor start relay/PTC and overload protector mounted on the compressor terminals. Check for signs of burning, cracking, or melted plastic.
• Test/replace start relay and overload: If you have a meter, test continuity of the overload protector and resistance of the PTC. Replace the compressor start relay/PTC assembly and/or thermal overload protector if defective.
• If E5 persists with good start components and airflow: The compressor itself may be failing or the main PCB may be misreading current/temperature. These are advanced repairs; contact a professional technician.