Heater Relay- 1.0.1 Test Your Volt Meter; Heater Relay- 1.0.2 Isolate Heater "Off" Control - Fresenius Medical Care 2008K2 Troubleshooting Manual

HEATER RELAY- 1.0.1 TEST YOUR VOLT METER

a) IMPORTANT! Set your CALIBRATED volt meter to AC voltage (~ V, V
b) Figure right, measure at the wall plug. The meter MUST read more than
100 volts AC!
c) See procedure number
HEATER RELAY- 1.0.2 ISOLATE HEATER 'OFF' CONTROL
a) ENSURING the machine is off, TWO (2) people are required for this procedure!
b) Turn the machine on but when "Select Program" appears
c) Read this step BEFORE going to part d! For eight (8) seconds, after selecting 'Dialysis' then
'CONFIRM' heater voltage
more than 100.0 volts!
d) Figure below, at the distribution board's Heater Connector, have
leads between the BROWN and BLUE wires!
Person #2:
e) Step #1 Select 'Dialysis'; Step #2 Saying "Now" press 'CONFIRM' to start Dialysis
Program!
f) For the FIRST EIGHT (8) SECONDS, after hearing "Now", more than 100.0 volts measured at the
heater?
Yes More than 100.0 volts! "HEATER RELAY TEST FAIL" MUST be up! See procedure number
HEATER RELAY- 2.0.0
No Less than 10.0 volts! Consider repeating procedure number
577) just to be sure! Does "HEATER RELAY TEST FAIL" reoccur?
HEATER RELAY- 1.0.2
SHOULD BE
less than 10.0 volts. After eight (8) seconds, it MAY go to
Figure 110 – Heater Connector
page 579
(
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
(page 577).
DO NOT
select 'Dialysis' yet!
Person #1
).
HEATER RELAY- 1.0.2
).
AC
(you) HOLD the meter
(page
Page 577