Saprom 905 Be20 with Kl900/Bt2 stopped working.

[Tomm]

Hy everyone.
I need a schematic or a service manual for SAPROM 905 BE20 and KL900/BT2 .
It stopped working.
There are two errors in the display. E02 and E05.
I have a very urgent job to do.I visited the site Partner.lorch.eu but the site is down.
Can You help me?

 

[Brad93]

e05 is a water cooler error - pins not bridged on the torch or flow sensor defective or cable between cooler and machine defective.

e02 is a mains input error. Is the machine wired up properly? Not missing a phase?

 

[Dutch Welder]

Is the cooler a singel phase one ?
Maybe it's indeed missing a phase, and if the cooler is a single phase one it's probably that phase that has gone out.

 

[Brad93]

There’s a few members who can help you out,

@matt1978 is the UK Lorch guy but he probably won’t be on here till tomorrow.

@Germanmachinist repairs a few machines if I remember correctly

@brockenhammer might be able to help.

 

[Germanmachinist]

@Jan-DIY maybe could help

 

[Tomm]

I checked all
I have all 3 phases - is ok
Fluid level is fine.
The fluid pump is running and the fluid flows through the hose.

 

[Brad93]

I checked all
I have all 3 phases - is ok
Fluid level is fine.
The fluid pump is running and the fluid flows through the hose.

There is a setting in the background menu possibly. To switch off the water cooled torch protection. That should get rid of error 5.

Still doesn’t explain Error 2.

 

[Jan-DIY]

What serial your machine got?

 

[Tomm]

Fabr.Nr 490-1146-005

 

[Jan-DIY]

Not good news.
Seems to be an issue with inverter section.

 

[Jan-DIY]

Go over to lisa.Lorch.eu
Other sides are buggy.

 

[Jan-DIY]

Unfortunately not a coolant issue.

Sorry.

 

[Brad93]

Oh dear. New machine time or get your machine off to a service centre.

 

[Brad93]

What year is the machine?

 

[Tomm]

1

What year is the machine?

1999

 

[Tomm]

Not good news.
Seems to be an issue with inverter section.

Do you have a wiring diagram of my machine?

 

[Jan-DIY]

It will not properly help you.
It seems that powersection is gone in smoke.
Primary oc often a Problem in shortet Mosfet modules.
This is not easy to fix in this way.

 

[Brad93]

Bloody hell 21 years isn’t a bad shout!

time for a new one. They’re still just as good.

 

[Jan-DIY]

21 years without serious problems in business is not that bad.

thumbs up!

 

[Tomm]

I took the inverter apart. It turned out to be a damaged transistor E26NA90.
Has a short circuit.
I will put in a new one and let me know if the machine has come back to life.
Thanks for all the answers