the EP105 and EP107 are not alarm codes, those are most likely Model and software versions that flash on display when first turning on machine.
Alarm codes are ALxx codes generally for zapi control systems.
If it is not displaying any codes on the display gain access to the controller and look on it, there should be a light flashing on it, see if it is flashing in any pattern. The pattern will probably be in intervals showing the 2 digit code, flash x number of times, pause for a sec and then flash the 2nd digit, then pause for 3 or 4 secs or so and repeat.
If you are not getting any codes at all there then your problem is elsewhere and the controller is not picking it up.
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