Heater Relay- 3.0.0 "Heater Relay Test Fail" Intermittent; Eater Relay- 3.1.0; Heater Relay- 3.2.0 - Fresenius Medical Care 2008K2 Troubleshooting Manual

HEATER RELAY- 3.0.0 "HEATER RELAY TEST FAIL" INTERMITTENT

A) Turn the machine off for two (2) seconds then back on.
Return to Dialysis Program ("Select Program" → 'Dialysis' → 'CONFIRM'). If (and ONLY if) "HEATER
B)
RELAY TEST FAIL" reoccurs see procedure number
RELAY TEST FAIL" DOES NOT occur see part C.
C) Repeat parts A and B four (4) times. If (and ONLY if) "HEATER RELAY TEST FAIL" does not reoccur
whatever was causing the problem has cleared!
HEATER RELAY- 3.1.0
D) Turn the machine off and swap in a known good Power Logic board. To LOCATE the board refer to
Figure 4A (page 9).
Turn the machine on and return to Dialysis Program ("Select Program" → 'Dialysis' → 'CONFIRM'). If
E)
(and ONLY if) "HEATER RELAY TEST FAIL" reoccurs see procedure number
(page 583) otherwise see part F.
F) Turn the machine off then repeat parts E and F four (4) times. If "HEATER RELAY TEST FAIL" does
not reoccur the new Power Logic board fixed the problem!

HEATER RELAY- 3.2.0

NOTE: The first Power Logic Board is probably okay.
G) Turn the machine off. THREE (3) possible bad component (see COMPONENT LIST below). Swap in
one (your choice), one at a time, then see part H to test the new component.
COMPONENT LIST: 1) Power Control board (inside the power supply) ; 2) Functional Board (to prevent
a "Cond Offset Failure", place the machine into T and C Mode (refer to
Error! Bookmark not defined.)); 3) Motherboard.
H) Turn the machine on and return to Dialysis Program ("Select Program" → 'Dialysis' → 'CONFIRM'). If
(and ONLY if) "HEATER RELAY TEST FAIL" reoccurs repeat part G until HEATER RELAY TEST FAIL"
does not reoccur indicating the last component swapped in fixed the problem
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
HEATER RELAY- 3.1.0
OPERATING
(page 583). If "HEATER
HEATER RELAY- 3.2.0
MODES, page
Page 583