13
Troubleshooting Guide
f. If the H.V. contacts are not properly aligned or the contact wall is not properly
aligned.
7. Checking for ionizing needle operation. Using HV voltage probe check needle for
high voltage -5.5 KVDC to -7.0 KVDC.
a. If voltage is present, the ionizer is OK.
b. If voltage is not present, check HV power supply.
c. If voltage is present at HV power supply but not the needle.
Clean needle with alcohol
and a cotton swab.
See above diagram.
Replace the negative ionizer
assembly including wire,
with needle attached, and
terminal.
IMPORTANT: Replace using
wire routing on contact
board.
The H.V. contacts must make
good contact. Replace the
contact wall or straighten the
contacts, if possible.
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