T- 2.6.2 Isolate Between Control Board - Fresenius Medical Care 2008K2 Troubleshooting Manual

T- 2.6.2 ISOLATE POWER CONTROL BOARD
A) Figure below, lay the power supply panel down to see the component side of the Power Control board.
Per the Figure above
B)
CHECK #1: At connector K1 and K2, gently yank on both wires to ENSURE they are securely attached!
CHECK #2: Do resistors R10 and R11 show signs of burning?
Yes
No burning! See procedure number
Figure 49 – TRIAC
Figure 48 – Power Control Board
, TWO (2) checks:
Burning located! Replace BOTH the Power Control Board AND the Triac*. *To
LOCATE the Triac refer to the Figure below.
2008K/K2 Troubleshooting Guide
P/N 507298 Rev. H
T- 2.6.5 (page 280).
Page 279