Promega
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  • Welcome!
  • Getting Started
    • Critical Warnings & Information
    • Unboxing & Assembly
    • Check Your Printer
    • Setup Your Electronics
    • Setup Your Network
    • Updating SD Card Structure
    • Getting Started: Where to Go From Here
  • Beginner's Guides
    • Read This First
    • Your Extruder
    • Homing The Printer
    • Get Your Bed Ready
    • Running A Print
    • Common Terminology
  • Advanced Guides
    • Printer Assemblies
    • Printer Coordinates
    • Moving The Motor
    • Introduction To G-Code Commands
    • Meet The Extruder
    • Heating The Bed & Nozzle
    • Loading & Unloading Filament
    • The Bed & Probe
    • Bed Leveling & Probing
    • Tuning The Z Homing Procedure
    • Bypass Bed Leveling (Temporary)
    • Software Layers
    • What is Slicing?
    • Preparing The Print
    • Printing The Print
    • Where To Go From Here
  • Your Printer & Filament Settings
    • Printer Settings (Default)
    • ABS-R Filament
    • PLA Filament
    • Filament Extrusion Rate
    • How To Mix
    • How To Properly Apply Elmer's Glue
  • Documentation
    • Software/Firmware
      • SD Card Structure
      • Updating Firmware
      • Macros
      • Adjust Homing Macros
      • Tool Definitions
      • Duet Driver
    • Electronics
      • The Electrical Standard
      • Duet Maestro Wiring
      • Extruder Assembly Wiring
    • Mechanical Systems
      • Compound Mixing
      • Single K'Tana
  • Repair & Maintenance
    • Install/Uninstall
      • Back Cover
      • Filtration System
      • Cable Chain
      • Extruder
      • Nozzle
      • Limit Switch Holder
        • X Axis
        • Y Axis
        • Z Axis
      • Sliders
      • Belt Clamps
      • CoreXY
      • Fans
    • Routing Z Belts
    • Belt Tensioning
    • Slowing Down Your Bed
    • Mechanical Bed Leveling
    • Z-Probe Calibration & Software Bed Leveling
    • Screw & Tool List
    • Temperature Calibration
    • Unclogging The Nozzle
  • How To Troubleshoot
    • Network Connection
    • Duet Web Console (DWC)
    • Z Probe
    • Mesh Compensation
    • Bed
    • Heater
    • Extruder
    • Homing
    • Common Troubleshooting
      • Help! My Extruders Are Backwards
  • Changelog
  • Your Printer's 3D Parts
    • Latest Parts
      • Frame
      • Extruder System
      • Bed
    • Promega 1.24 or earlier
  • Quad
    • Setup Guide
      • Install
      • Calibration
  • M3D Community
    • Active Community Support
    • How To Contribute
    • Community Guides
      • Ruler Shortcut
    • Community Slicer Settings
    • Add-Ons
      • Modified Printed Parts
      • Gearbox
      • Quad
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On this page
  • Heater Faults: Temperature Spikes
  • Problem
  • Solution
  • Heater Faults: Temperature Not Rising Fast Enough
  • Problem
  • Solution
  • Heater Faults: Heating Suddenly Stops
  • Problem
  • Solution
  • Heater Faults: Temperature is 2000C!
  • Problem
  • Solution
  • Bed Fault: Not Heating Up
  • Problem
  • Solution
  1. How To Troubleshoot

Heater

PreviousBedNextExtruder

Last updated 6 years ago

Heater Faults: Temperature Spikes

Problem

The temperature has an impulse-like increase - OR - erratic temperature changes.

Solution

There is a faulty wire connection.

Replace PT1000 sensor.

If replacement does not work, replace PT1000's wire extension. The wire extension is a long wire housed in the that extends from the extruder to the Duet board.

Heater Faults: Temperature Not Rising Fast Enough

Problem

Heater starts rising in temperature. Then the Duet Web Control (DWC) throws a fault, stopping the heating process and/or the print.

Solution

Your Promega may have been placed in a drafty region.

Drafty locations (e.g. near a ceiling fan) may cause the heaters (both bed and/or extruder) to perform unexpectedly.

We recommend you enclose the Promega.

You may need to tune your heater.

Let the heater cool to room temperature.

Make sure you have some space ( estimated: 20 mm) between the bed and nozzle. We'll will be heating up the heater.

Run:

M562; Removes the fault.
M303 H# S260; Starts heater AUTO-TUNING Heater #. H# is the faulted heater's number.

Example: A fault on heater 2.

M562; Removes the fault
M303 H2 S260; Starts heater AUTO-TUNING on Heater 2.

Wait for the process to finish.

Stay with the printer. Do Not Leave the printer unattended while the heater is tuning.

Run:

M500; Saves auto-tuning results. Saved in config-override.g (under sys folder)

Open: config.g (Located in the sys folder, in your SD Card).

Go to the last line of entire file.

Make a new line. Enter (if not seen):

M501; This loads the new auto-tuning results at start up.

If you see this warning, Ignore:

No M501 command was executed in config.g

Why:

You just entered the M501 command into the config.g. The changes to the config.g file will take effect after a restarting your printer.

Heater Faults: Heating Suddenly Stops

Problem

Everything is working fine. Then a Duet Web Console (DWC) suddenly throws this heater fault:

Solution

Your highest, allowable heater temperature was passed.

Run:

M143 H#; H# is faulted heater's number

The default maximum heater temperature is 320 C.

Heater Faults: Temperature is 2000C!

Problem

My temperature reads continuously reads 2000 Celsius.

Solution

The PT1000 is completely disconnected.

Replace the PT1000.

Bed Fault: Not Heating Up

Problem

Your bed is not heating up uniformly or not heating up at all.

Solution

Turn OFF the printer FIRST

Check if your bed power switch is on.

Check the screw terminals that connect the bed to the Duet. Check these terminals on both the Duet side and the heated bed side. It is possible that they loosened up and are not making proper connection.

Feel the wires going into the terminals and move them around to see if they are loose. If they are open the terminal cover and screw them down tight again with a Phillips head screwdriver.

Check your PT1000 cables are connected. Use the to figure out which cable is that. If connected, continue.

cable chain
Duet Maestro Wiring Diagram
Location of the Bed Power Switch