Corrective Maintenance - Pace ST 115 Operation & Maintenance Manual

Repair

Corrective Maintenance

Power Source
Most malfunctions are simple and easy to correct. Refer to Table 3 below to clear
these malfunctions.
Symptom
No power to system.
Insufficient vacuum or air
pressure.
Motor Pump runs.
No vacuum or air
pressure.
Motor Pump does not
run.
Table 3. Power Source Corrective Maintenance
Probable Cause
Blown Fuse
Handpiece air hose
has a kink or hole in
hose.
VisiFilter or handpiece
filter clogged.
Handpiece chamber
not seated properly in
handpiece.
Defective Motor Pump
Assembly.
Defective handpiece. Check handpiece using
Defective Motor Pump
Assembly.
Defective Main PCB
Assembly
Solution
Check handpiece using
"Heater Assembly Checkout
Procedures", Table 4.
Replace fuse located in AC
Receptacle/Fuse Holder.
Check handpiece hose.
Replace air hose if
necessary
Replace VisiFilter or
handpiece filter.
Check handpiece. Reseat
chamber if necessary.
Check vacuum and air
pressure at Motor Pump
Assembly air hose
connections. Replace
Motor Pump Assembly if
necessary.
"Heater Assembly Checkout
Procedures", Table 4.
Check for 12 VDC at motor
terminals with handpiece
switch actuated. Replace
Motor Pump Assembly if
defective.
If there is no 12 VDC at
Motor Pump Assembly,
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