# Sculpfun S30 Pro Max - Laser module Fan & Laser not turning on **URL:** \ **Category:** Community Laser Talk\ **Tags:** grbl, sculpfun, diode-laser\ **Created:** [September 23, 2025, 10:00am UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500 "2025-09-23T10:00:47Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![RomanEdward](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/r/f04885/32.png) [@RomanEdward](https://forum.lightburnsoftware.com/u/RomanEdward)\ **Post date:** [September 23, 2025, 10:00am UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/1 "2025-09-23T10:00:47Z")
Hi, Has anyone had problems with their S30 Pro Max Laser module Fan & Laser not turning on? I have my laser about 2 weeks and still busy learning the laser as well as Lighburn software. Now my Laser module Fan & Laser not turning on. The laser runs through the engrave/cut cycle but the fan and laser is off Your assistance/advice will be greatly appreciated Thank you ---
**Author:** ![MikeyH](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/m/43a26b/32.png) [@MikeyH](https://forum.lightburnsoftware.com/u/MikeyH)\ **Post date:** [September 23, 2025, 3:11pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/2 "2025-09-23T15:11:20Z")
Check the cable plugs on both ends for the laser power. Make sure it is not too tight or snagging anywhere it can move. ---
**Author:** ![misken](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/misken/32/47593_2.png) [@misken](https://forum.lightburnsoftware.com/u/misken)\ **Post date:** [September 23, 2025, 5:28pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/3 "2025-09-23T17:28:52Z")
In most cases it’s the signal cable that is either loose or broken. Make sure that the power is still coming through. ---
**Author:** ![soniclab](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/soniclab/32/67657_2.png) [@soniclab](https://forum.lightburnsoftware.com/u/soniclab)\ **Post date:** [September 23, 2025, 6:16pm UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/4 "2025-09-23T18:16:12Z")
Check your power supply ---
**Author:** ![RomanEdward](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/r/f04885/32.png) [@RomanEdward](https://forum.lightburnsoftware.com/u/RomanEdward)\ **Post date:** [September 26, 2025, 7:43am UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/5 "2025-09-26T07:43:17Z")
Thanks Mikey ---
**Author:** ![RomanEdward](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/r/f04885/32.png) [@RomanEdward](https://forum.lightburnsoftware.com/u/RomanEdward)\ **Post date:** [September 26, 2025, 7:43am UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/6 "2025-09-26T07:43:47Z")
Thanks Misken Melvin ---
**Author:** ![RomanEdward](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/r/f04885/32.png) [@RomanEdward](https://forum.lightburnsoftware.com/u/RomanEdward)\ **Post date:** [September 26, 2025, 7:44am UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/7 "2025-09-26T07:44:22Z")
Thanks Jeremy ---
**Author:** ![RomanEdward](https://forum.lightburnsoftware.com/letter_avatar_proxy/v4/letter/r/f04885/32.png) [@RomanEdward](https://forum.lightburnsoftware.com/u/RomanEdward)\ **Post date:** [September 26, 2025, 7:46am UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/8 "2025-09-26T07:46:19Z")
Thanks guys… I have been in touch with SCULPFUN Tech support and we managed to find the fault, there seems to be a loose cable contact/connection to the laser module. Major delay and impact to production. ---
**Author:** ![misken](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/misken/32/47593_2.png) [@misken](https://forum.lightburnsoftware.com/u/misken)\ **Post date:** [September 26, 2025, 11:38am UTC](https://forum.lightburnsoftware.com/t/sculpfun-s30-pro-max-laser-module-fan-laser-not-turning-on/180500/9 "2025-09-26T11:38:22Z")
> [@RomanEdward](#): > > Major delay and impact to production. Never rely on a single device for production. Especially if you use lowest-budget devices 🙂 You can easily repair the cable and put a new connector on it. Those are called JST-XH 2.54. If you have orders to process, better collect spare parts soon.