（2）Check the light sensor input circuit of sample
reagent disk circuit board.
2. The value of multimeter is not changing.
（1）Check the wire
Check whether the 1.2.3 core of P142 plug is
connected well, and whether the two ends connected
well.
（2）Check light sensor signal
Check voltage between P142A plug pin 1，3, if the
voltage is not 5v, check the connection of plug. If the
voltage is 5v, check potential of P142 plug pin 2. The
potential is high when reaching to the top position,
otherwise the potential is low. If not normal, check
the light sensor.
9.16 Resetting and other failure analysis
Alar
m
Code
Description
Detailed
description
Solution
143
-1
Time
synchronizatio
n
failure
Sending time
synchronization
order failure
Check the communications of control board and
sub-boards respectively.
143
-2
Water adding
overtime error
Water tank
liquid system
malfunction,
water adding
overtime error
Check whether the water supply machine, magnetic
valve, pipeline and filter are working normally, and
check whether the water supply pipe has air, and
check whether the floater is normal, and check
whether relevant electrical units of floater and
control board are normal.
143
-3
AD board
reset failure
AD board
detects
malfunction
when resetting,
AD board reset
Use control panel monitoring software to monitor
the fault information to see if there is AD
communication error. Repair AD board if there is
AD communication error to debug.
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