Tuttnauer 1730EK, Technical Manual, Page: 58 / 111

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56
Corrections
1.1
See symptoms 22, 2
4 and
25 in
para. 11
.3.2.
2.1
Close the doo
r more tightly
or set the do
or
switch more steadily.
3.1
If amount of
water is not correct, clean the
electrode and set the water
level
3.2
See symptom 29 in para. 11.3.2.
3.3
The thermostat must be set
at a higher
switching poi
nt and the tim
e after the
electrode touches the water be prolo
nge
d.
3.4
Clean or replace w
ater inle
t valve and
exhaust valve. 4.1.1
Clean or replace el
ectrode.
4.1.2
Level
autoclave.
4.2
See symptom 18 in para. 11.3.2.
Pos
sib
le ca
use ch
eck
-u
p and tes
ts
1.1
The problem is the incorrect reading of the temperature s
ensor.
2.1
The pressure
in the chamber rises during the
heating stage and is pressing on the door. If the door swit
ch is lightly
pressed it could be
turned off.
3.1
The process f
ails if the elec
trode is above the
water surfa
ce
and the safety thermostat
switches off. Check if the amount of water in the chamber is over 350cc.
3.2
If the water quantity re
mains insufficient, the
problem is a wrong electrode signal.
3.3
Process fail
s despite correct quantity of
water.
3.4
Presence of d
irt inside the
water inlet va
lve
may cause slowdown of t
he flow.
4.1
The heating ti
me is very long and t
he heating
rate is normal
.
4.1.1
Excess quantity of water in the chamber due to dirty electrode, loose electrode connections or faulty
electrode.
4.1.2
Excess quan
tity o
f water in the
chamber due to un-levelled autoclave.
4.2
Heating elements damaged
.
Heating Stage
Symp
to
m
1.
Pr
ocess fai
ls whil
e
initiating the
heati
ng stage.
mess
ag
e H
IGH TEMP is
displayed.
2.
Message DOOR UNLOCK is displayed during the heating stage, although the door is closed.
3.
LOW WAT
ER mes
sage is
displayed during the heating stage
and process
fa
ils
.
4.
Mess
ag
e L
O
W HEAT is
displayed during the heating stage.