General Guidelines:
1) Make sure that the following errors / alarms are not present before running the T1 test. a) Power Failure b) Dialines not conn c) Shunt cover open d) Connect conc.Line e) Blood sensed by OD f) Flow alarm g) Water alarm
2) When T1 test fails, press pre ss “Test” key again and note the displayed error code before proceeding
to technical manualfor further clues.
3) If more than 1 test fails select “Test Service” ON (PCB LP 632 DIP switch array 1, SW 4 ON) & do the
test individually to get the error c odes of the concerned test fail.
Test Equipments:
a) Hemodialysis tester b) Pressure guage c) Graduated Measuring jar (100ml ,1000ml) d) Flashlight. e) Digital multimeter
Pressure Units:
1Bar = 14.5 psi =749.94mmHg
The Order of Troubleshooting :
1) Water Alarms 2) Flow Alarms 3) Upper Flow Alarm 4) Temperature 5) Conductivity 6) Blood Leak 7) Pressure Holding Test Failures. 8) TMP Continuous Alarms 9) Hydraulic Test Fails 10) Blood Pump Errors / Level Detector Alarms /Arterial Alarms/ Venous Alarms /Heparin Pump Errors/ Diasafe Errors 11) Ultra Filtration Errors 12) Battery Fail
S NO.
Error
Possible Causes
Tips
Remarks
1
Water Alarm
a) No Water
a) Water
UseDiagnostics
Supply/ Low
InletPressure(0.95 Program to check
Pressure.
to 1.05 Bar)
the water Flow Path.
b) Pressure Regulator (61) c) Check the Inlet Filter
c) Check Valve 41
d) Water Inlet Valve(41) 2
Flow Alarm
a) Blocked filter b) Defective valve/pump (valve resistance 50 to 80 Ohms)
a) Verify flow 300, a) Create flow from 500, 800
diagnostics.
b) Calibrate if
b)Verify Loading
required.
pressure (1.2 – 1.45 Bar)
c) Calibration 3
Upper Flow Alarm a) Degassing filter b) Degassing pressure c) Flow calibration
4
Temperature i) High temperature
a) Incomingwater
a)Incomplete hot
temperature
disinfection can be a
b) Temp Calib
reason!
a) Temp Calib a) Flow errors can
ii) Low temperature
lead to Low Temp b) Heater Rod.
Alarm! b) Heater rod resistance around 30 Ohms
S NO.
Error
5
Conductivity
Possible Causes
i) Low Conductivity a) Dilution Ratio.
Tips
Remarks
a) Verify Dilution
a)Normally
Ratio in Set Up
1+35.83(Nacl26);
Menu
depends on the A & B part
b)Concentrate or Bicarbonate
b) Wrong or
b) Provided the
Expired Solution?? concentrate and BIC strokes and suction is OK c) Calibrate if
c) Conc. & BIC
required
c) Ref: CalibrationMixing System
pump strokes and output?? d) Calibrate the d) Conc and BIC pump spring set
d) Replace if
Conc and BIC pumps
required
after replacing the springs. Use the
broken??
graduated measuring Jar to measure the stroke volume.
e) Conductivity (Display ) Calibration
e) Temperature and Conductivity (display) Calibration
f) Faulty Conc or BIC Pump
a)Flow Errors
a) Verify flow ,Calibrate if required
b) Verify Dilution ii) High
c) Ref: Set up-
b)Dilution
Conductivity
c) Wrong or Expired Solution??
c) Concentrate or Bicarbonate
d) Temperature and Conductivity (display) Calibration
d) Conductivity (Display ) Calibration
Dilution
S NO.
Error
Possible Causes
6
TMP / Dial Pressurea) Dialyser
Tips
Remarks
a) Replace Dialyser.
membrane defects
b) Dial Pressure Calibration Required.
b)Continuous TMP Alarm / Pressure fail indicates Dial Pressure Calibration
a)Adjust 0 mmHg ( LP 633 Pot P3) and do dial pressure calibration.
7
Blood Leak
Blood Leakand
Adjust both to 5
Dimness
Volts.
Calibration
8
Pressure Holding Test
a) Leakage in
a) Observe for
a) Use a flash light.
Hydraulic system. leaks during Positive pressure
i) Positive Pressure Errors
b) Dial Pressure
test or Induced
b) Do Dial Pressure
pressure test.
calibration only if the error code
Calibration
indicates dial pressure calibration.
a) UF filter blockage
b) Use the graduated
ii) Negative Pressure Errors
measuring Jar. b) UF Pump Calibration
c) Observe/ Replace Spring set
c) Broken UF Pump d) Check tightness Spring set
of hoses
d) Use Diagnostics program
d) Minute Leakage in Hydraulic system
S NO.
Error
Possible Causes
9
Hydraulic Test Fail a) Rinse Filters 148 a) Replace Filters if a) 3 minutes before & 149
needed. b) Most cases
i)Rinse Failure Alarm
Tips
b)Rinse Valves 91,99,100
Remarks
the end of cleaning program.
pressure leak due to loose hose at these valves OR Leak from Conc and BIC pick up line rubber seals. c) Check PS 134 from Diagnostics.
c) Bibag Pressure switch 134 a) Clogged Filter 210
a) 1 minute before the end of cleaning program.
ii) V39 Failure.
10
i) Blood Pump
a) BP Power cord
Errors
a) Replace power
a) Power cord is
cord
the one connecting control board to motor
b) Jammed Motor b) Replace bearing c) Do complete
c) Control Board
arterial calibration and BP speed calibration after replacing the control board
a) Air Detector
a) Calibrate Air ii)Level detector Alarm
iii) Arterial Pressure Alarms
detector a) Arterial Pressure calibration
S NO.
Error
10 Contd…
iv) Venous Pressure a) Transducer Alarms
Possible Causes
Tips
Remarks
Partially clogged
Protector ( P Ven) female connection.
b) Venous Pressure calibration
c) Venous Line set. a) Mechanical problem of gear
v) Heparin Pump
a) Manually rotate
Errors
the gear to Top or bottom end and a)F 03/ F02
retest the pump a) Dial Pressure calibration required
vi) Diasafe Errors b)F 34/ 43
b) Damaged Diasafe Filter a)
c) Diasafe Pressure Transducer
c) Replace Diasafe filter.
11
Ultrafiltration Errors. i) Less fluid removal
a)UF Pump filter (74) b) UF Pump Calibration c) UF pump spring set d) UF Pump
b) Verify
b) Verify the stroke
Calibration
volume(1ml/
c)Replace if required d) Replace if defective.
12
Battery Fail.
a) Battery
a) BatteryVol. 18 V .
b) BatteryFuse (3.15 A) c) LP 647
c) LP 647 is in the Power supply module.
stroke)
Diagnostics Program
1) On the service switch 2) Enter Diagnostics- Write outputs – Write Digital outputs – CPU 1 : Digital outputs.
Rinsing V 84 ( Disinfection Valve)
1) On V 87, 30, 32, 34, 36, 38, 84 (On - 1111) 2) Start Flow Pump (FP On - 0000)
Creating the Flow
1) Switch On V 24, 24 B, 30,31,32,33,34,35,36,37,38,87 2) Start Flow Pump and Degassing pump 3) Set On FL_ SW_ EN (Float Switch Enable)
Note: Balancing Chamber inlet /outlet valve combination can be switched off one group at a time to locate the faulty BC valve, if any.
