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Miro 13 Max

How to Troubleshoot and Avoid Smoking/ Fume Issues (Miro 13 & Miro 13 Max)

Every step links to its own moment in the video, so you never hunt for the right part again.

  • 17 steps
  • 63 instructions
  • 1 video
  • Updated 2026-04-20

User manualThe full manual, beyond first setup. · All manuals

Miro 13 Smoke During Printing – Purifier Troubleshooting and Fan Replacement Guide

  1. 0:01Issue Overview and Troubleshooting Scope
  2. 0:29Required Tools and Safety Preparation
  3. 0:39Checking Purifier Fan Operation
  4. 1:02If the Purifier Fan Is Not Running
  5. 1:17Accessing the Heating Plate Safely
  6. 1:40Inspecting Power Connections
  7. 2:22Evaluating Fan vs Cotton Filter Issues
  8. 2:34Inspecting the Cotton Filter
  9. 2:58Cooling and Glycerin Burn-Off Procedure
  10. 3:12Tools Required for Fan Replacement
  11. 3:18Preparing for Fan Replacement
  12. 4:20Accessing Wiring for Fan Replacement
  13. 4:44Disconnecting the Old Fan
  14. 5:35Installing the New Fan
  15. 6:20Reconnecting and Securing Wiring
  16. 7:10Power-On Verification
  17. 9:49Preventive Maintenance Reminder
Written steps17

Issue Overview and Troubleshooting Scope

Watch this part0:01
  1. Identify smoke coming from the Miro 13 during printing.
  2. Understand this typically indicates a purifier malfunction.
  3. Note common causes include glycerin buildup and poor maintenance.
  4. Prepare to inspect the purifier unit, wire connections, and cotton filter.

Required Tools and Safety Preparation

Watch this part0:29

What you need

  • Gloves
  • Lint-free cloth
  • Screwdriver
  1. Power off the machine.
  2. Allow the heating plate to cool to room temperature before proceeding.

Checking Purifier Fan Operation

Watch this part0:39
  1. Open the purifier chamber.
  2. Turn the power on.
  3. Check whether the purifier fan is running.
  4. Inspect the fan motor area for glycerin buildup.
  5. Clean glycerin buildup as needed.

If the Purifier Fan Is Not Running

Watch this part1:02
  1. Close the purifier chamber.
  2. Turn off the main power.
  3. Open the top heating chamber.

Accessing the Heating Plate Safely

Watch this part1:17
  1. Confirm the unit is powered off and fully cooled.
  2. Be cautious of sharp edges on the heating plate.
  3. Carefully lift the heating plate toward the back.
  4. Do not pull the plate too far to avoid disconnecting attached wires.

Inspecting Power Connections

Watch this part1:40
  1. Check whether the circuit is disconnected.
  2. Focus on the +12V and -12V interfaces.
  3. Tighten any loose screws.
  4. Reinstall components.
  5. Turn the power on and test the purifier fan again.

Evaluating Fan vs Cotton Filter Issues

Watch this part2:22
  1. If the circuit is intact but the fan does not operate, prepare to replace the fan.
  2. If the fan operates but smoke persists, inspect the cotton filter.

Inspecting the Cotton Filter

Watch this part2:34
  1. Open the purifier chamber.
  2. Inspect the cotton filter for yellow discoloration.
  3. Wipe the filter and check for excessive moisture.
  4. Replace the cotton filter if it is saturated or clogged.

Cooling and Glycerin Burn-Off Procedure

Watch this part2:58
  1. Open the heating chamber or purifier chamber.
  2. Allow the purifier to run for at least 5 minutes.
  3. Let the system cool and burn off excess glycerin.

Tools Required for Fan Replacement

Watch this part3:12

What you need

  • Scissors
  • Cable ties
  • Screwdriver
  • Replacement fan

Preparing for Fan Replacement

Watch this part3:18
  1. Turn off the main power.
  2. Open the top purifier chamber.
  3. Loosen the mounting screws.
  4. Take a reference photo of the fan wiring and orientation.
  5. Cut the cable ties.
  6. Close the purifier chamber.

Accessing Wiring for Fan Replacement

Watch this part4:20
  1. Open the top heating chamber.
  2. Confirm the unit is powered down and cooled.
  3. Carefully lift the heating plate toward the back.
  4. Avoid pulling the plate too far out.

Disconnecting the Old Fan

Watch this part4:44
  1. Cut the cable tie securing the wiring.
  2. Locate the fan wires.
  3. Unscrew the wire connections.
  4. Identify the black wire connected to the -12V terminal.
  5. Disconnect the wires.
  6. Close the heating chamber.

Installing the New Fan

Watch this part5:35
  1. Open the purifier chamber.
  2. Remove the old fan.
  3. Install the new fan.
  4. Ensure the fan airflow direction is correct.

Reconnecting and Securing Wiring

Watch this part6:20
  1. Tie and route the wires through the designated hole.
  2. Locate the wiring interface.
  3. Connect the wires securely.
  4. Close the purifier chamber.
  5. Secure all wires.
  6. Reinstall all removed components.

Power-On Verification

Watch this part7:10
  1. Turn on the power.
  2. Verify the purifier fan is operating correctly.

Preventive Maintenance Reminder

Watch this part9:49
  1. Perform daily maintenance consistently to prevent future issues.
  2. Reference the Miro 13 maintenance guide as needed.
  3. Contact a DTF Station technician if issues persist.

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