JUN-AIR JVac Dental Vacuum Suction System - Manual (Page 20)

20
CI-100A (Rev B) JUN-AIR Dental Vacuum Suction System User Guide
© 2012, JUN-AIR
We reserve the right to make any alterations which may be due to any technical improvements
Printed in the USA
TROUBLESHOOTING CHART
Problem Possible Cause(s) Possible Solution(s)
1. Unit won't start (on but
not running)
a. Breaker is tripped (system or circuit) a. Reset breaker, check voltage while system is run-
ning to verify voltage range. Check circuit breaker
size compared to O&M recommended size
b. Remote switch wired incorrectly b. Check that the red and white remote switch wires
are tied together and the black remote switch wire
is insulated (no shortages)
c. Motor thermal overload tripped c. Re-set red thermal overload button on motor. Con-
tact your authorized distributor if problem persists
d. Failed transformer or contactor d. Power unit down. Remove system electric pan-
els and visually inspect contactor/transformer for
damage (blackened components or burnt smell).
Contact your authorized distributor for replacement
parts
e. Capacitor failed e. Power down system. Manually confirm blower cou-
pling rotates. Visually look for damage to capacitor,
if seen contact distributor for replacement capacitor
2. Tank won't drain a. Tank isn't full a. Turn unit off and see if tank drains
b. Drain line kinked / plugged b. Remove clog or kink from drainage line
c. Tank lid not properly seated or fas-
tened to tank
c. Use soapy water to check for vacuum leaks on
tank. Tighten tank lid if leaks are found
d. Tank ball float failed d. Remove tank lid, check to make sure all PVC is
still attached to lid. If not, contact your authorized
distributor for replacement parts
3. Unit on, low suction
- gage not meeting
O&M Specs
a. Tank is draining a. Turn system off. Allow minimum 30 seconds for
system to drain then turn back on
b. Operatory HVE/SE lines are open b. Close all operatory lines and re-check tank gage
reading
c. Tank lid not properly seated or fas-
tened to tank
c. Use soapy water to check for vacuum leaks on
tank. Tighten tank lid if leaks are found
d. Low voltage d. Check voltage of system while unit is running.
Install appropriate buck-boost transformer
e. Leaks in system/operatory plumbing e. Use soapy water to check for vacuum leaks in
plumbing. Replace leaking plumbing and assure
that all hose clamps are tight on hoses
f. Blocked operatory line f. Run non-foaming cleaner through operatory lines
and re-check vacuum level
g. Relief valve is dirty (causing low relief
vacuum level)
g. Clean relief valve (see procedure in O&M manual)
and re-check vacuum setting on tank gage com-
pared to O&M specified range