Tuttnauer ELARA11-D, Technicial Manual

Page: 133 / 176

Page 132
Symptoms
Possible causes Check-
ups and tests
Corrective Action
1. Heating elements go
on working beyond the
required time.
2.
Faulty SSR or Analog
board.
3.
Faulty calibration of
temperature or pressure
sensors.
4.
Faulty temperature or
pressure sensors.
Low pressure
During 'Sterilization' stage,
the chamber pressure goes
below the value of
'Sterilization Pressure'. The
'Sterilization Pressure' value
is calculated according to
parameter 'Sterilization
Temperature' using a
predefined lookup table.
Possible causes:
1.
Door gasket is
leaking.
2.
Heating elements
(even one of them) do not
work.
3.
Faulty SSR or Analog
board.
4.
Faulty calibration of
temperature and pressure
sensors.
5.
Faulty temperature or
pressure sensors.
6.
Leakage in the pipes
Perform a new cycle.
1
Replace the door gasket.
Recalibrate the temperature and
pressure sensors.
2-5
Fix connection. If this
doesn’t help, replace faulty
temperature sensors, pressure
sensors,.SSR or Analog board
6.
Find and replace the
leaking pipes.
Heat time error/
Heat time error
(keep)
During 'Heat' stage,
chamber temperature has
not reached the requested
temperature (defined by
cycle parameter
'Sterilization Temperature')
after X minutes as defined in
parameter 'Heat Time Error'
Possible causes:
1.
Door gasket is
leaking.
2.
Heating elements
(even one of them) do not
work.
3.
Faulty SSR or Analog
board.
If the problem persists, perform
the following with SSR, Analog
board, and temp/pressure
sensors:
a.
Test
b.
If this doesn’t help,
recalibrate.
c.
If this doesn’t help, replace.
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