Vaisala WHP25 - Manual (Page 21)

Chapter 4 ______________________________________________ Troubleshooting
VAISALA__________________________________________________________19
CHAPTER 4
TROUBLESHOOTING
This chapter describes common problems, their probable
causes and remedies, and contact information.
Common Problems
Table 2 below lists some common problems and their
remedies.
Table 2 Some Common Problems and their
Remedies
Problem Probable Cause Remedy
No voltage between
X5 and the
grounding crimp. Fuse F1 is broken. Replace the fuse
F1 as instructed in
section Replacing
Fuses on page 20.
No voltage from the
24 VDC output. Fuse F2 is broken Replace the fuse
F2 as instructed in
section Replacing
Fuses on page 20.
No voltage from the
36 VDC output. Fuse R3 is broken. Send the unit to
Vaisala as
instructed in section
Return Instructions
on page 22.