lotus_esprit_s1
Member
- Messages
- 828
- Location
- UK
Tried to use my Snap On / Cebora Pocket Plasma 25 recently after a period of storage but it wouldn't operate. It switches on, when the trigger is pressed a relay clicked inside but no air came out, and it won't cut.
I took the covers off, when the trigger button is pressed the relay on the PCB to operate the airshutoff solenoid was is operating (yellow in the photo below), but the air solenoid itself won't operate, nor do the other two relays (red) on the PCB which operate the contactors for the cutting side.
After a bit of a look at other posts on the forum about this machine with a wiring diagram, I wired the air solenoid directly to the on/off switch, which makes the solenoid operate as it should, and the air pressure switch works fine too, with air right to the torch
I then tried manually engaging the two contactors with the air soleniod still wired on, and the machine fires up, depress the cutting tip and it cuts perfectly.
So basically while the torch and actual cutting and air side of the machine work fine, I'm pretty sure I have a partially faulty control PCB. It all looks fine with no burnt components, I've clipped and unclipped the connections a ferw times with no joy. While it's quite a simple PCB I'm not experienced in AC circuitry or PCB fault finding, can anyone recommend someone who might be able to look at the PCB, or where I might get a replacement board for the machine? Or even anyone with a faulty machine and a spare board?
Below is a photo of the machine, and advice welcome!
I took the covers off, when the trigger button is pressed the relay on the PCB to operate the airshutoff solenoid was is operating (yellow in the photo below), but the air solenoid itself won't operate, nor do the other two relays (red) on the PCB which operate the contactors for the cutting side.
After a bit of a look at other posts on the forum about this machine with a wiring diagram, I wired the air solenoid directly to the on/off switch, which makes the solenoid operate as it should, and the air pressure switch works fine too, with air right to the torch
I then tried manually engaging the two contactors with the air soleniod still wired on, and the machine fires up, depress the cutting tip and it cuts perfectly.
So basically while the torch and actual cutting and air side of the machine work fine, I'm pretty sure I have a partially faulty control PCB. It all looks fine with no burnt components, I've clipped and unclipped the connections a ferw times with no joy. While it's quite a simple PCB I'm not experienced in AC circuitry or PCB fault finding, can anyone recommend someone who might be able to look at the PCB, or where I might get a replacement board for the machine? Or even anyone with a faulty machine and a spare board?
Below is a photo of the machine, and advice welcome!