Cardinal Health IVAC 571, Technical & Service Manual

Page: 42 / 104

IVAC® Volumetric Pump (Models 571 & 572) 42/104 1000SM00018 Issue 2
Troubleshooting
General Faults
Fault Failure Action/Replace
Circuit breaker
tripped
Line voltage fluctuation.
Short circuit in power supply or wiring.
Fluid ingress.
Power Regulator Board component failure.
Reset circuit breaker once. If it trips again,
disconnect from AC power then:
Check mains inlet for fluid ingress.
Check power lead for damage.
Replace Power Regulator Board.
Replace transformer.
No response
when switches are
pressed
Failed switch.
Failed or mispositioned flex cable.
Failed Display Board components.
Run test
17
.
Test switches while opening and closing door.
Replace or reposition flex cable routed to J3.
Replace Bezel/Switch Panel assembly.
Replace Display Board.
No Display and no
audible tone
Fuse blown.
ON/OFF switch failure.
Power Regulator Board or Logic Board circuitry
failure.
Bad battery.
Replace fuse F1 on Power Regulator Board.
Replace Bezel/Switch Panel assembly.
Check battery voltage is 14.4 ± 0.05 VDC, adjust
R10 on Power Regulator Board if necessary.
Replace Power Regulator Board or Logic Board.
No battery power Clad fuse blown.
Battery is disconnected, has a wiring problem or
has failed.
Replace clad fuse on Power Regulator Board. If fuse
blows repeatedly, verify that the battery charge
voltage is 14.4 ± 0.05 VDC, adjust R10 on Power
Regulator Board if necessary.
Replace battery.
Scrambled or
frozen Display
Microprocessor malfunction.
Faulty flex cable.
Replace Y1 on Logic Board; Replace U1 on Logic
Board.
Check flex cable connection at J3 of Display Board.
Replace Logic Board.
Momentary
Display
Pump has automatically shut off due to low
battery charge.
Plug power cord into AC mains.
Knocking noise Dirt build-up around pressure plate. Clean and inspect pressure plate.
Fuse blown (F1),
intermittent FIX
ME 0, FIX ME 3 or
halted alarms
3/8" test connector cover screw shorted out. Replace 3/8" screw with 1/4" screw (300330).