2008T Troubleshooting Guide
P/N 490292 Rev. A
Yes 80° C or more! The Heater is good! See procedure number T- 3.0.8 (page 304).
No Does NOT achieve 80° C or more! Either incoming water is extremely cold (less than
12° C) OR you made an error and Heater voltage is NOT more than 100 volts AC
OR the Heater is bad!
T- 3.0.8 HEATER IS GOOD / TROUBLESHOOT HEAT DISINFECT ‘ACTUAL’ TEMPERATURE
a) To avoid damage, turn the machine OFF!
b) One of the listed components (see COMPONENT LIST below) may be bad. Swap in one, starting with
NTC #2 then, in between, perform parts c through h to test the new component.
COMPONENT LIST: 1) NTC #2
1
2) Actuator-Test Board
2
; 3) Sensor Board
2, 3
; 4) Functional
Board
2, 3
; 5) Motherboard
2
.
1
To LOCATE NTC #2 refer to Figure 42 (page 236)
2
To LOCATE the boards see Figure 4A (page 10)
3
Calibrate Temperature Control AND Cond Cells before testing these components!
c) Return to HEAT DISINFECT without the Temperature meter attached for now.
d)
BEFORE continuing to part e, allow the screen’s [Remaining Prerinse Time]
window = 0:00.
e) Connect the Temperature meter to the dialysate lines as previously described.
f) ENSURING the flow indicator’s ‘bob’ is moving up and down in the sight tube, check distribution board
Heater Connector heater voltage (more than 100 volts AC) between each component!
g) Allow thirty (30) minutes OR until if the external meter’s reading maintains 80° C or more before
continuing to part h!
h) Based on the external meter’s reading, TWO (2) possible scenarios:
1) IF (and ONLY if) achieves 80° C or more: The new component fixed the problem! If a
Functional or Sensor Board was replaced perform all calibrations.
2) IF does NOT reach 80° C: Repeat procedure number T- 3.0.8 (page 304) swapping in known
good component from the list, one at a time, until the meter achieves 80° C or more. When (and
NOT until) the meter reaches 80° C or more see procedure number T- 3.0.9 (page 305).
To Next Page
Loading...
Need help?
General
