52 Troubleshooting
High voltage inside - dangerous shock hazard.
DO NOT attempt to disassemble or repair the unit.
Problem Cause What to do
Err on actual
temp and
alarm Icon is
on. Sonics
and degas
operate. Auto
and Heat are
inactive.
Malfunctioning sensor
components.
Call nearest authorized
service center.
Unit operates
but display
does not
function.
CPX/CPXH - Control board
malfunctioning.
Call nearest authorized
service center.
Unit stops
operating and
display is
blank with
only alarm
icon on.
Overheat condition. Turn unit off. Allow unit to
cool, check solution level,
then restart. Refer to page 40
for information on over
temperature protection.
Decreased
ultrasonic
activity.
NOTE: Refer
to page 53 for
cavitation
check.
Solution is not degassed.
Solution is spent.
Solution level is incorrect for
load.
Tank bottom is covered with
soil particles.
Using deionized water in the
tank.
Make sure that tank was
filled with warm tap water
plus cleaning solution and
has run 5–10 minutes.
Change solution.
Adjust solution to within 3/8
inch (1 cm) of the tank’s
operating level line with load.
Empty, then clean tank with
warm water. Wipe with a
nonabrasive cloth.
Deionized water does not
cavitate as actively as soapy
tap water.
www.calcert.com sales@calcert.com1.800.544.2843
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