7 Failure Identification Code Troubleshooting Table
7-18 FLO-GARD 6201 VOLUMETRIC INFUSION PUMP SERVICE MANUAL 07-19-B1-688
74 Motor slipped even though at
maximum current to motor.
Check that connector CN201 is
seated firmly.
Check for blown fuse F201 and
F202.
Check for loose encoder wheel.
Secure encoder wheel.
Plug CN201 in firmly.
Replace fuse if necessary.
Replace Sensor board.
Replace CPU board.
77 Slave CPU received no revolution
interrupt while motor was rotating.
Turn pump off and back on.
Ensure that the encoder wheel is
properly secured.
Check photointerrupter outputs for
proper function.
Secure encoder wheel.
Replace photointerrupters if
necessary.
Replace Sensor board. Replace
CPU board.
78 Drive defect - overinfusion. High
motor rotation against the number
of revolution counter interrupts.
See Failure Identification Code
77.
79 Drive defect - underinfusion. Low
motor rotation against the number
of revolution counter interrupts.
Ensure that pump head is clean
and rotates freely.
Check coupling between pump
mechanism and motor.
Check encoder wheel for secure
mounting.
Apply a trace of Loctite 211 or
222 to coupling set screws and
tighten.
Secure encoder wheel.
Replace Sensor board.
Replace CPU board.
82 No acknowledgment message
from Slave CPU for three
communication trials.
Turn pump off and back on. If failure recurs, replace CPU
board.
83 Undefined message type received
from Slave CPU.
Turn pump off and back on. If failure recurs, replace CPU
board.
86 LVDT reading of downstream
occlusion sensor is too low.
Check calibration of downstream
occlusion sensors.
See Failure Identification Code 2.
87 LVDT reading of downstream
occlusion sensor is too high.
Check calibration of upstream
occlusion sensors.
See Failure Identification Code 4.
89 Bank switching control circuit
failure
Turn pump off and back on. If failure recurs, replace CPU
board.
90 RATE, VTBI and VI data
checksum is not 0.
Turn pump off and back on. If failure recurs, replace CPU
board.
91 Checksum error of Programmed
Delivery Profile stored data.
Reset all of PDP. If failure recurs, replace CPU
board.
92 Checksum error of Programmed
Delivery Profile working data.
Reset all of PDP. If failure recurs, replace CPU
board.
Table 7-3 Failure Identification Codes — continued
Code Cause Checks Corrective Action