Hi All,

During the startup process on our VK45-II there is an Air Pressure Low error (05353).
The listed errors are:
=========== NC ALARM ===========
[ 948] EMERGENCY STOP
=========== PC ALARM ===========
[2A05] NC ALARM
[2A56] AIR PRESSURE LOW

Things we have tried:
-------------------

The pressure sensor at the front of the machine (cable X0A0) (indicated by the
diagnostic screen) has been checked, and appears to be operating fine,
however it has been bypassed to ensure that if there is a fault with the
air pressure switch, that this does not prevent the machine starting.
This was done by moving both the leads onto the common terminal.
The air pressure switch cable has been traced back to the DIS board and
we have tried starting the machine with the pins which relate to X0A0
shorted. This should bypass both the front air sensor and the cabling to
the sensor. However this produces the same error.

I will try to get into diagnostics today and see if the system even registers the X0A0 sensor changing ( 0 -> 1 when we click the solenoid )

Has anyone experienced this?

I am sure we have a working air pressure sensor, and im sure the cabling and plug onto the DIS board are fine (all these checked with a continuity meter). If the problem is on the board, what are the options?

Thanks,