Buzzing noise while not in use (Fuse Blast)

The Fuse Blast produces many noises during a cleaning cycle under normal operation. Buzzing noises while the unit is idle and the air compressor is disconnected may indicate an issue with the pressure regulator.

• Malfunctioning air compressor
• Malfunctioning pressure regulator
• User error

• Unusual buzzing noise when the unit is idle and the air compressor is disconnected

1. Power cycle the Fuse Blast using the breaker switch on the rear of the machine. Leave the unit powered off for at least 30 seconds before powering back on.
2. Disconnect the air compressor.
3. If the noise stops, the issue may be with the air compressor.
4. With the unit idle, tap the Fan button on the touchscreen to turn off the fan. Wait a few seconds for the fan to audibly stop.
5. If the noise persists with the fan and the air compressor turned off, you may need to replace the pressure regulator. Take a video of the malfunctioning unit with sound to help diagnose the issue. Attach the file when contacting Formlabs Support or your certified service provider.