100-412-196 REV. 06 73
7.3 Troubleshooting Charts
Use the following troubleshooting charts for possible problem conditions and resolutions.
The charts are based on the assumption that the proper setup and operation instructions
have been followed and/or the system was working and then developed a problem.
Table 7.2 System Trouble Analysis Chart
Symptom Probable Cause Corrective Action
Main power fuse fails or
circuit breaker trips when
system is plugged into
electrical outlet.
• Cordset has failed • Replace cordset
• Power Switch has failed
• Line filter has failed
• Return for repair
Display screen does not
appear when unit is
turned on. Fan does not
operate.
• System is unplugged or main
power is missing
• Correct power problem
• Unit fuse has blown (it should
not under normal conditions)
• Replace fuse
• Cordset has failed • Replace cordset
• Power Switch has failed
• Line filter has failed
• Unit failed due to connection
to incorrect input voltage
• Return for repair
Fan does not operate
when system is turned
on. Display screen
appears.
• Fan motor has failed • Return for repair
Fuse fails when system is
turned on.
• Fuse is under-rated
• Mains Voltage is incorrect
• Fan motor has failed
• Power supply module has
failed
• Unit failed due to connection
to incorrect input voltage
• Verify voltage source is
correct. Damage may
occur if connected to
wrong voltage source
• Replace fuse with correct
value and retry; or return
for repair
Ultrasonic power is not
delivered to the horn.
• Power supply module has
failed
• Digital controls have failed
• Failed RF cable
• Failed Converter
• Return for repair
Unusual noise from Horn
when ultrasonics are on.
• Horn or Tip is loose, or it is
contacting a solid object
• Reposition horn
• Remove, examine, and
clean tip; reinstall tip
• Horn or tip has failed • Replace horn or tip