Hill-Rom Century+ P1400, Service Manual, Page: 101 / 277

2.7 The Bed Down Function Does Not Work
Chapter 2: Troubleshooting Procedures
Page 2 - 56 ™ Bed Service Manual (man241)
Yes No
↓ →
Replace the fuse. If this solves the problem, go to “Final
Actions” on page 2-7. Otherwise, go to step 17.
17. Check the fuse at the inlet power (primary side) (see figure 3-4 on page
3-5). The fuse is good.
Yes No
↓ →
Go to step 21.
18. Go to step 31.
19. Perform the following:
a. Set your VOM to read volts DC.
SHOCK HAZARD:
Use extreme care when checking live voltage. Do not touch live
terminals, wires, or ground. Failure to use caution could result in
serious electrical shock injury.
b. At P3, measure the voltage for the hilow motor (pins 2 and 3) (see
figure 3-4 on page 3-5).
c. The voltage is 12V DC +3V.
Yes No
↓ →
Go to step 21.
20. Replace the cable from the control board to the hilow motor. If this solves
the problem, go to “Final Actions” on page 2-7. Otherwise, go to step 31.
21. Replace the control board (see “Control Board” on page 4-5) The bed
down function now operates properly.
Yes No
↓ →
↓ →
Go to step 31.
22. Go to “Final Actions” on page 2-7.
23. Perform the following:
SHOCK HAZARD:
Unplug the bed from its power source. Failure to do so could result in
personal injury or equipment damage.