98
OPERATING MANUAL
VERSION 05/2017
ORDER NUMBER DOC 2357061
10.1.1 FAULT RECTIFICATION
A100/A101/A102
B+/C+/D+ tol. alarm
The mixing ratio within a specific control quantity (QB/QC/QD control) was not reached:
too much B, C or D.
− Reduce pressure of B/C/D: see Chapter
− Without AIS:
− The stroke at the B/C/D valve is too long. Close the regulating screw a little.
− Check the cycle length of the hardener dosing valve (menu diagnosis).
0.5 to 3 seconds are optimal. If the cycle length is too long, then the difference
in pressure is still too great or the stroke is too long.
− With AIS:
− If the stroke of the B/C/D valve is far from its ideal position, the adjustment can
take a long time under some circumstances. Home page: [AIS], then reduce the
AIS position a bit.
− Check whether valve closes. Clean valve.
− The flow meter A is blocked by soiling. The LED at the flow meter has to light up during
product flow, otherwise it is clogged (cleaning, see Chapter
− Check whether nozzles, mixer or filter are clogged.
− Check the level of the paint tank, condition of the feed pumps, etc.
− The QB/QC/QD control quantity may be set too low (standard 150 cc). If the quantity is
increased, the control algorithm becomes more stable because more time is available
in order to achieve the mixing ratio.
A103/A104/A105
B–/C–/D– tol. alarm
The mixing ratio within a specific control quantity (QB/QC/QD control) was not reached:
too little B, C or D.
− Increase the pressure of B/C/D: see Chapter
− Without AIS:
− The stroke at the B/C/D valve is too short. Open the regulating screw a little.
− Check the cycle length of the hardener dosing valve (menu diagnosis). 0.5 to
3 seconds are optimal. If the valve is always open (cycle check display is almost
continuously lit), then the difference in pressure is still too small or the stroke is
too short.
− With AIS:
− If the stroke of the B/C/D valve is far from its ideal position, the adjustment can
take a long time under some circumstances. Home page: [AIS], then enlarge
the AIS position a bit.
− Check whether the valve opens. Clean valve.
− The flow meter B or C or D is blocked by soiling. The LED at the flow meter has to light
up during product flow, otherwise it is clogged (cleaning, see Chapter
− Check whether nozzles, mixer or filter are clogged.
− Check the level of the paint tank, condition of the feed pumps, etc.
− The QB/QC/QD control quantity may be set too low (standard 150 cc). If the quantity is
increased, the control algorithm becomes more stable because more time is available
in order to achieve the mixing ratio.
