Stuga routermaster problems computer dont seem to be connected to machine

[JAZZCNC]

We think it could be a guard or something which is stoping it from running because as soon as we put the machine on the "reset"button light is luminated which apparently in the instruction book means that there is an emergency stop or something which is stopping it however we cannot find what is causing this.

This is correct and how it should be.? The reset shouldn't be allowed to happen if there's any fault or safety feature that's activated. IE: limit tripped or Guard open.

If it's wired correctly then even if a wire breaks it will not work and appear like an E-stop has occurred. So really it's just a process of elimination to find if there's either a faulty switch or Broken wire.
It could be something like a faulty Relay or wire fallen out of relay so check all connections inside control box.! . . Make sure to do it with power off.!!

Me I'd start with finding all switches and checking condition and if working with multimeter. If any are suspect then just bridge connections and check if it comes out of Reset.?
Don't just remove the switch has the wiring will most likely be a large loop so any break will show has E-stop condition. It will need connections bridging.

If you can post some pic's of inside the Control box and anything you thin looks relevant then something may just jump out at us.??

One last thought does it use external Air supply for any pneumatic clamps etc.? If so then it could be this and a switch or control is looking for air and again won't allow operation without it.?

The Error code could just be a side affect of the E-stop condition being active too long.? Thou it could also mean it just wants a MINT Cornetto.!!. . . Who knows but Stuga.?? More likely it means Stuga will tell you what it means then Charge you a Mint.!!