Tuttnauer 1730EK, Technical Manual

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49
Corrections
1.1
Replace da
maged cord or repair faulty
connections.
1.2 Reset
cut-off.
1.3
Return the circuit breaker lever to the “ON” position after
fixing t
he cause for the short
circuit.
1.4
Replace the b
lown fuse after fixing the c
ause
for the short c
ircuit.

Fasten
contac
ts.

Restore powe
r source.
Pos
sib
le ca
use ch
eck
-u
p and tes
ts
1.1
Check the power cord and the connections
at the autoclave input.
1.2
Check the cut-out thermostat. If operation c
ontinues after resetting the cut-
out. find out
what caused t
he thermostat
to
switch-off.
1.3
Check the circuit breaker. If it tripped,
there
is a short-circuit.
1.4
Check the fuse of the power supply.
If th
e
fuse is blown, check if one
of the valve
coils
or one of the
electronic boards cause
s a
short
circuit.
1.5
Check the AC voltages. —
The input su
pp
lies voltage at the
control system - See Elect
rical Wiring
Diagram. —
Switch off th
e power of th
e unit.
—
Set the multitester on the AC voltage
measuring
range.
—
Connect the n
egative probe at pin 3
to
AC-INP
U
T connector and
the positive
probe to
pin
1 or 2 o
n AC-T1 board.
—
Turn on
the p
ower. The ind
ication of
the instrument must be the same as
the
power network voltage. if
no
t:

Main power switch\Rocker
switch
contacts may
be loose.

Electrical power source
may be
faulty.
11.2
Pr
e-
pr
oc
es
s m
alf
unc
ti
on
Symp
to
m
1.
No response when the sys
tem is tu
rn
ed on