Boss Team Tech Support: Knowledge Base & Applications Hub

Model Support

LS-2440 Technical Support

Support for the LS-2440 CO2 laser: manuals and quick-start downloads, the first checks for firing, alignment, and cut-quality problems, and the step-by-step diagnostic guides.

Manuals & guides

The manuals linked above cover this machine.

Start here

Pick your symptom.

The three common paths for support: firing, alignment, and cut or engrave quality.

Laser Not Firing

Symptom

Laser Not Firing

If the head moves but the laser does not fire, start with interlocks and basic power-path tests.

  • Confirm emergency stop, lid, door, and water-protection status.
  • Run the interlock testing guide.
  • Run the simplified resistor test if directed.
Alignment Issues

Symptom

Alignment Issues

If power varies across the bed, cuts taper, or the beam does not exit the nozzle cleanly, start here.

  • Inspect mirror one, two, three, and nozzle position.
  • Use the mirror alignment guide and alignment-tool instructions.
  • Recheck focus only after alignment is corrected.
Poor Engrave / Cut Quality

Symptom

Poor Engrave / Cut Quality

If engraving is dirty, cutting is inconsistent, or edges are wider than expected, isolate focus and settings first.

  • Clean lens and mirrors before changing settings.
  • Confirm focal depth and bed level.
  • Run a controlled material test for speed, power, and air assist.

Guides & videos

Support references.

Direct support resources — not a generic blog feed.

Interlock Testing

Interlock Testing

Use this first when the machine does not fire and safety interlocks may be interrupting the laser.

Simplified Resistor Test

Simplified Resistor Test

Helps isolate power-supply and tube behavior after basic safety checks.

Mirror Alignment

Mirror Alignment

Step through the beam path and confirm alignment before troubleshooting focus or material settings.

Common questions

LS-2440 FAQs.

Frequent questions for this specific model.

What size material fits the LS-2440?

The LS-2440 offers a 23.6″ × 39.75″ work area. Check your build sheet for pass-through and rotary options on your configuration.

My engraving is darker on one side — what changed?

This is almost always focus height or bed level. Re-run autofocus, confirm focus height with the gauge, and level the bed front-to-back and side-to-side before adjusting power.

Which manual do I download for this model?

Use the LS Series owner’s manual and quick-start guide linked at the top of this page — one manual and guide cover the LS-2440 along with the rest of the LS line.

Need a technician?

Contact Boss Laser support.

Include your serial number, photos or video, the material being used, settings, and which quick checks you completed.

Replacement parts

Replacement parts for the LS-2440.

Most commonly replaced

Control Card (RDC6442S-B(EC) Obsolete)

Control Card (RDC6442S-B(EC) Obsolete)

SKU 800013

$409.00Add to cart
Control Panel (Touch 6445GT)

Control Panel (Touch 6445GT)

SKU 800050

$289.00Add to cart

Air Assist 1

Belts 4

Control Panels & Cards 2

Control Card (6445GT Current)

Control Card (6445GT Current)

SKU 800051

$429.00Add to cart

Cooling & Exhaust 4

Drag Chain 8

Hardware & Fittings 8

Hood, Door & Chassis 1

Lenses & Optics 16

Nozzle (2″ Gen 5 LS & HP Non-Metal)

Nozzle (2″ Gen 5 LS & HP Non-Metal)

SKU 700062

$15.00Add to cart
Nozzle (2.5″ GenV LS&HP Non-Metal)

Nozzle (2.5″ GenV LS&HP Non-Metal)

SKU 700063

$15.00Add to cart
Nozzle (4″ GenV LS&HP Non-Metal)

Nozzle (4″ GenV LS&HP Non-Metal)

SKU 700064

$15.00Add to cart
Mirror (1″ / 25.4 mm Mirror Premium)

Mirror (1″ / 25.4 mm Mirror Premium)

SKU 300044

$49.00Add to cart
Alignment Tool (Kit Target Refills (10 Pack))

Alignment Tool (Kit Target Refills (10 Pack))

SKU 400425

$7.50Add to cart
Mirror (Mirror Removal Tool)

Mirror (Mirror Removal Tool)

SKU 700007

$1.50Add to cart

Linear Rails & Bearings 3

Motors & Drivers 6

Pulleys 2

Sensors & Switches 8

Proximity Sensor ((black GenV))

Proximity Sensor ((black GenV))

SKU 600051

$15.00Add to cart
Proximity Sensor ((orange or green))

Proximity Sensor ((orange or green))

SKU 600052

$15.00Add to cart

Tubes & Power Supplies 5

Tube Bracket (70W 80W)

Tube Bracket (70W 80W)

SKU WH9001

$19.00Add to cart
Tube Bracket (105W 155W)

Tube Bracket (105W 155W)

SKU WH9003

$24.00Add to cart

Work Table 2