Chapter 7: Maintenance
Reconditioning the Stack Interface
7 - 8 100-413-016 Rev. C
Fuse F1 fails when ON/OFF switch
is energized.
1. Underrated fuse F1.
2. Incorrect voltage.
3. Fan motor has failed.
4. Power Supply module has failed.
Ultrasonic power is delivered to the
horn. No indication on meter.
1. Meter has failed.
No or inconsistent ultrasonic power.
Some indication on meter.
1. Foreign material between horn sur-
face and replaceable tip.
2. Loose or worn out tip.
3. Horn is loose or failed.
4. Horn stud is loose or failed.
5. Converter cable has failed.
6. Converter has failed.
7. If used with a treatment chamber,
horn tip may not be immersed.
Little or no meter indication when
ON/OFF switch is energized. Fan
operates.
1. Timer has not been set, has com-
pleted cycle, or has failed.
2. Thermal switch on power supply
module is activated.
3. Adapter board has failed.
4. Harmonics module has failed (CE
units only).
Full scale or high meter deflection,
horn unloaded.
1. Power supply module has failed.
2. Horn or tip have failed.
Power supply operates continuously
but does not operate in PULSED
mode.
1. Pulse mode timer or circuitry failed.
A slight electric shock is felt when
touching the Sonifier unit.
1. Unit is improperly grounded.
2. Line cord has failed.
Table 7.1 Symptom/Probable Cause
Symptom Probable Cause
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