JUN-AIR JVac Dental Vacuum Suction System User Manual

Page 22

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CI-100A (Rev B)

JUN-AIR Dental Vacuum Suction System User Guide

We reserve the right to make any alterations which may be due to any technical improvements

Printed in the USA

Problem

Possible Cause(s)

Possible Solution(s)

7. Unit on and running -

no suction

a. Tank is draining

a. Turn system off. Allow minimum 30 seconds for

system to drain then turn back on

b. Blocked operatory line

b. Run non-foaming cleaner through operatory lines

and re-check vacuum level

c. Leaks in system/operatory plumbing

c. Use soapy water to check for vacuum leaks in

plumbing. Replace leaking plumbing and assure
that all hose clamps are tight on hoses

d. Tank lid not properly seated or fas-

tened to tank

d. Use soapy water to check for vacuum leaks on

tank. Tighten tank lid if leaks are found

e. Tank ball float failed

e. Remove tank lid, check to make sure all PVC is

still attached to lid. If not, contact your authorized
distributor for replacement parts

f. Failed coupling between blower and

motor

f. Power down system. Manually confirm blower

coupling rotates. Check room temperature while all
other equipment is running. Check exhaust line for
blockages. If coupling has failed, contact distributor
for replacement parts

g. Tank check valve failure

g. Run 1-2 gallons of water into tank and turn unit off.

If tank does not drain contact distributor or replace-
ment parts or service repair of existing parts

h. Relief valve failure (relieving low or

open)

h. Close all operatory lines and re-check tank gage

reading. If reading is below O&M specified values
contact distributor for replacement parts or service
repair of existing parts

8. Suction in some loca-

tions, not all

a. Plugged HVE or silva ejector

a. Run non-foaming cleaner through operatory lines

and re-check vacuum level. Check location of
blockage and remove