T- 2.6.6 Heater Switch Okay/Isolate Heater Connections; T- 2.6.7 Heater Connections Okay - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 2.6.6 HEATER SWITCH OKAY / ISOLATE HEATER CONNECTIONS
Per the Figure below
Between 9.0 and 15.0 Ω! The Heater Connections are OKAY! See procedure number
Yes
T- 2.6.7
More than 15.0 Ω! Check the heater wires for a 'broken circuit' between the Power Control
No
Board's K1 and K2 and the distribution board's Heater Connector.

T- 2.6.7 HEATER CONNECTIONS OKAY

a) Figure right, reattach all cables
PROPERLY to the Power Control board!
b) Remount the Power Control board to
its clips
c) Slide the power supply into the cabinet
but do not bolt it in yet!
d) For now all Power Supply heater
components are checking okay. See
procedure number T- 2.6.8
, measure BETWEEN K1 and K2. Between 9.0 and 15.0
(page 281).
(page 282).
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
Ω
?
Page 281