Pace PRC 2000, Service Manual

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27
REPAIR
Table III. Corrective Maintenance, Power Source Cont'd
S Y M P T O M PROBABLE CAUSE S O L U T I O N
Insufficient SNAP-VAC
(vacuum) or air pressure.
Excessive motor pump noise. Air hose(s) and/or filter(s)
clogged. Replace any clogged filters and clear all
air hoses.
Defective motor pump. Replace motor pump.
Microprocessor pcb defect. Replace Microprocessor pcb.
Digital Readout display is erratic. Shorted handpiece or
accessory.
Disconnect handpieces and accessories
one at a time until Digital Readout
display is normal.
Low AC line voltage. Check line voltage.
Display pcb defect. Replace Display pcb.
Microprocessor pcb defect. Replace Microprocessor pcb.
Paste dispenser pressure is
insufficient or nonexistent. Poor air hose connections. Check air hose connections outside and
inside of system power source.
Clogged air filter. Replace filter.
Defective pump, valve or
reservoir. Replace defective part.
Excessive noise during paste
dispense operation. Defective dispense pump. Replace dispense pump.
Multifunction pcb defect. Replace Multifunction pcb.
Contact PACE Customer Service at Tel. (301) 490-9860, FAX (301) 604-9215 to obtain any replacement parts.
Refer to the "Replacement Parts" section of this manual for part numbers.