YCO-1049-02-03
PPC-200W
Technical Manual
6
III Troubleshooting
Problem
The scale will not power on.
The dis play con tin ues to fl ash
all 8s af ter the scale is turned
on.
“-----H” appears upon power up.
“-----L” appears upon power up.
The displayed weight fl uc tu ates
ex ces sive ly.
Possible Cause
Batteries dead or incorrectly
installed.
AC adapter loose or mal func -
tion ing.
CPU board malfunction.
Vibration or an unstable po-
si tion or platform.
Platform weight too high.
Platform weight too low.
Material between the platform
and the scale body.
Weighing assembly in contact
with wires or case.
Load cell connector loose or
damaged.
Power board malfunction.
CPU board malfunction.
Solution
Test batteries. Reinstall if
needed.
Reseat adapter. Replace if
needed.
Replace CPU board.
Remove source of vibra-
tion or place scale on stable
platform.
Clear platform and restart.
Remove platform, clear
away any debris and re in -
stall platform.
Remove material.
Reposition wires, case or
platform.
Reconnect or replace the
load cell connector.
Replace power board.
Replace CPU board.
