C O N T R O L P A N E L S
When
AL.2
clears, the controller returns to the RUN or STOP STATE.
¾
Display shows the process value
¾
Alarm indicator light is OFF
¾
Heater is enabled
¾
Pump is enabled
¾
If the controller is returning to a RUN STATE, then time
t
will resume
If alarm AL.1 is activated, the controller will automatically be placed into the FILL STATE.
Trouble Shooting
SYMPTOM FAULT
CORRECTION
Error code 50 on the display Error in storing parameters in memory
Cycle the power. Replace the control
electronics if the problem does not clear
Error code 61 on the display Calibration of the water temperature
sensor is faulty
Recalibrate the water temperature input
Error code 65 on the display Calibration of the sheath temperature
sensor is faulty
Recalibrate the sheath temperature sensor
Error code 67 on the display The reference junction calibration is
faulty
Recalibrate the reference junction
Error code 70 on the display Operation parameters are set incorrectly
or are corrupted
Access the
op.5
supervisor mode and set the
parameters correctly
Error code 80, 81, and 82 on
the display
Calibration related errors
Recalibrate the controller
The heat light is on, but the
water temperature reading is
failing
The heater / SSR circuit may have
failed, or the water temperature sensor
may have been wired backwards.
Check to see if the SSR light is on. Verify
that the SSR output is not permanently open.
Verify that the water temperature sensor is
not wired backwards
The heat light is on, but the
sheath temperature is falling
The sheath temperature sensor may be
wired backwards
Verify that the sheath temperature sensor is
not wired backwards
The water is agitated, but not
at the normal frequency
One of the two circulation pumps may
be bad
Check to see if either of the pumps have
failed
The soap pump comes on,
but no soap is dispensed
The soap dispensing solenoid may have
failed
Check to see if the soap dispensing solenoid
has failed
The controller display reads -
00
A temperature sensor is under range,
meaning that it is very cold, or wired
backwards
Rewire the temperature sensors
The basin is full of water,
but the controller remains in
the FIL state and alarm light
is flashing
Either the water temperature or sheath
temperature sensor has failed open
Check the temperature sensors for continuity
The heat light is off, but the
water temperature continues
to rise excessively above the
desired set point
The SSR device has likely shorted,
forcing the heater to always be on
Replace the SSR device
The controller will not exit
the drain mode during a
change water cycle
The heater has likely failed
Replace the heater
25
Summary of Contents for Taskmaster PP-3
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