Need Help Latex 570 16.44:10 and 16.24.10 error

Hi good, morning
This machine is becoming me crazy. A few months ago (16.44:10 and 16.24.10)This error started to appear from time to time, but it was reasonable.
Lately this error is appearing more often, that the reason why we call service, technician was here and he swop heating module 4 with module 1, he checked resistors in 4 modules and they were ok around 89 ohms,after that we try to work and after a couple of hours the error appears again, technician replaced module 3 with module 4 (previous module 1). The next day the error appears again, that the reason why the technician replaced the Petrie (heating electronic board), but the error is still appearing.
We can print but from time to time the error appears, or we have a wet stain in the printing in the module four zone, it is annoying thing, because you have to be in front of the machine in order to stop printing if you see something wrong.
Could anyone give us one idea?. because two different engineers has come and the problem is not solved.

thanks

 

I dont think they do it, is there any special firmware for this problem?